Help me with this math equation.

Help Me With This Math Equation.

Answers

Answer 1

Answer:

7y+21

Step-by-step explanation:

7(y+4)-7

=7y+28-7

=7y+21

Answer 2

[tex]{\boxed{\mathcal{\red{7\:y\:+\:21}}}}[/tex] ✔

Also,

The value of [tex]\sf\purple{"y"\:is\:-3.}[/tex] ✅

Step-by-step explanation:-

[tex]7(y + 4) - 7 = 0 \\ ➪ \: 7 \: y + 28 - 7 = 0 \\ ➪ \: 7 \: y + 21 = 0 \\ ➪ \: 7 \: y = - 21 \\ ➪ \: y = \frac{ - 21}{7} \\ ➪ \: y = - 3[/tex]

To verify:-

[tex]7 \: ( \: y + 4 \: ) - 7 = 0 \\ ⇢  \: 7 \: ( - 3 + 4) - 7 = 0 \\ ⇢ \:  7 \: (1) - 7 = 0 \\ ⇢ \:  7 - 7 = 0 \\ ⇢ \:   \: 0 = 0[/tex]

[tex]\longrightarrow{\purple{L.H.S\:=R.H.S}}[/tex] 

Hence Verified.

[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]


Related Questions

Between 2020 and 2021, the population of a town decreased by 35%
In 2021, the population of the town was 94 900. What was the population of the town in 2020?​

Answers

Answer:

Step-by-step explanation:

if 2021 is 35% decrease of the original number then 2020 is 100% ,and 2021 = 65%.

so, we do the rule of three:

x = (94900 * 100)/ 65

x = 146000

and that is the population in 2020.

Answer:

Hey there! Based on the information provided, it seems that the population of the town decreased by 35% between 2020 and 2021. We can use this information to calculate that in 2021, the population of the town was 65% of its population in 2020. If the population of the town in 2021 was 94,900, then we can use this information to calculate that the population of the town in 2020 was 146,155. Does that make sense?

Someone answer this no wrong answers begs I’ll give thanks and brainliest

Answers

Answer:

660

Step-by-step explanation:

Please answer correctly. I will give brainliest.
A packing operator can assemble 4 cardboard boxes in 5 minutes. At this rate, how many boxes can she assemble in 25 minutes?
A.
12
B.
24
C.
20
D.
28

Answers

Answer:

C=20

Step-by-step explanation:

1. 25÷5=5

2. 5×4=20

I hope this helped☺

Please help in this question. I WILL mark brainliest. NO LINKS

Answers

Answer:

B, you are correct

Area of the bigger trapezoid = (6 + 2) x 1/2 x 6 = 8 x 1/2 x 6 = 4 x 6 = 24

Area of the smaller trapezoid = (4 + 2) x 1/2 x 3 = 6 x 1/2 x 3 = 3 x 3 = 9

Area of the shaded area = 24 - 9 = 15

Hope that helps! :)

Hope that helps! :)

-Aphrodite

Step-by-step explanation:


PLEASE HELP 30 POINTS

Answers

the answer is yes i believe

Erik deposited $3,000 into a savings account that earns 5% simple Interest.

He also deposited $3,000 into a savings account that earns 5% compound interest.

How much is the difference between the account balances after 3 years?

Answers

Answer:

3450 because 5 percent of 3000 Is 150

Answer:

Hey, the answer is 15.375

Step-by-step explanation:

UsiNg PRT/100, the simple interest of the sum of 3000 naira invested for 3yrs at 5% per annum is 450.

Meanwhile, the first year of the compound interest, the interest generated was 150

second year 157.5

and lastly, third year 157.875

Total interest = 465.375

465.375 - 450 = 15.375

Graph the solution to this inequality on the number line.
The

Answers

Using a straight line and either an open circle or a closed circle to indicate the end points, we can depict inequalities on a number line by displaying the range of integers.

How do you identify inequalities?

By drawing a straight line and designating the end points with either an open circle or a closed circle, we can depict inequalities on a number line by illustrating the range of integers. An open circle indicates that it excludes the value. A closed circle indicates that it does contain the value.

Both equations and inequalities are mathematical phrases created by connecting two expressions. The equal sign (=) in an equation denotes that the two expressions are regarded as equal. In contrast, an inequality indicates that the two phrases are not always equal by using the symbols >,,, or.

With regard to the inequality expression

-3m + 5 > 14

5 from each side is subtracted.

-3m + 5 - 5 > 14 - 5

-3m > 9

Subtract -3 from both sides.

-3m/-3 < 9/-3

m < -3

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what is m=5 n=3 mn+9

Answers

Answer = 2

Since m = 5 and n = 3, mn means multiply the values together.
5(3) = 15

Now add 9
15 + 9 = 24

Answer: 24

Step-by-step explanation:

Given that m=5 and n=3, we can plug our values into the given expression to evaluate.

(5)(3)+9                  [multiply]

15+9                        [add]

24

The reason we multiplied before we added was due to the order of operations. Order of operations tells us to always multiply or divide first before we add or subtract. In this case, the multiplication happens to come first so we multiply, then add.

which points are separated by 3 units?

Answers

2,4 & 2,7 since 6,3 & 6,1 is only separated by two units :)

with a 5% sale discount the price of an item is $38 what was the original price​

Answers

Answer:

[tex]38 \div5 \\ [/tex]

the original price is $40

write each percent as a fraction and
as a decimal.
7/100%
I NEED THIS BY 2:30PM

Answers

7/100% can be written as a fraction as 7/100, and as a decimal as 0.07.

[tex]\huge\text{Hey there!}[/tex]

[tex]\mathsf{\dfrac{7}{100}\%}[/tex]

[tex]\mathsf{= \dfrac{7}{100} \div 100}[/tex]

[tex]\mathsf{= \dfrac{7}{100}\times \dfrac{1}{100}}[/tex]

[tex]\mathsf{= \dfrac{7(1)}{100(100)}}[/tex]

[tex]\mathsf{= \dfrac{7}{1,000}}[/tex]

[tex]\mathsf{= 0.0007}[/tex]


[tex]\huge\text{Therefore, your answer should be:}[/tex]

[tex]\huge\boxed{\mathsf{\dfrac{7}{1,000} \ \& \ 0.0007}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]


~[tex]\frak{Amphitrite1040:)}[/tex]

Malia signed up for a gym membership 14 weeks after Jane.
Let a represent the number of weeks Malia has been a member and b represent
the number of weeks Jane has been a member.
Find the value of b when a = 9.

Answers

When Malia joined a gym 14 weeks after Jane did, the value of b was 5.

What does "proportional relationship" mean?

Relationships between two variables where their ratios are equal are known as proportional relationships. The fact that one variable is always a constant value multiplied by the other in a proportionate connection is another way to conceive of them.

What is a good illustration of an unproportional relationship?

A car's fuel capacity and efficiency, as well as how far it can go on a single charge of its electric battery, are important considerations. A nonproportional connection can be used to describe this.

a + b = 14

9 + b = 14

b = 14-9 = 5

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Which ordered pair represents the solution to the system of linear equations?

Answers

Answer:

0,2

Step-by-step explanation:

because because it crosses the x-axis line only one time

I don’t understand this ssshh

Answers

After evaluating the given expressions the results could be 245 / 89 , 43/6, 33/4 .

What is expression ?

expression can be defined as with the minimum of two variables or numbers and at least one math operation.

Given that ,

7/ 8  * 14  / (3/8 * 6 ) + 2  1/5

= (7/8 * 14 )/ ((18 / 8) + 11/5)

= (98/ 8 ) / (90 + 88) / 40

= (98/ 8 ) /  (178/ 40)

= (98 * 40) / (8* 78)

= 245/89

Hence the final value could be 245/53.

7/ 8  + (6*7/8 - 4 * 3/16 ) / (3/4 )

(7/8 + (21/4 - 3/4 ) )  / (3/4)

(7/8 + 18/4)  / (3/4)

(43/8) / (3/4)

43/6

Hence the final value could be 43/6.

3  1/7  * (3 1/3 * (2/3 + 1/6 ) - 5/18 ) / 2 (3/7)

11/7 * (10/6 - 5/18) / (17/7)

(11/7 )* (27/ 18) /( 17/7)

(11* 27/18 )/ (17)

33/34.

Hence the final value could be 33/34.

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Translate the following sentence into an inequality: Four more than a number is greater than or equal to 17.

Answers

Answer: 4 + n >= 17

Step-by-step explanation:

Identify the slope and y-intercept of the line given by the equation: y = 1/3x - 2

Answers

Answer:

this is in the form of slope intercept. y = mx + b

m is the slope

and b is the y intercept

meaning that -2 is the y intercept

and 1/3 is the slope

(meaning on a graph you go up one, and over 3)

Step-by-step explanation:

What’s (3 , 1)reflected over the x-axis

Answers

(3,-1) to reflect over the x axis is to make the y coordinate negative

Answer:

(3,-1)

Step-by-step explanation: because all you have to do is reflect it over the x-axis

I need help in this?!!!!!!!!!!!!!!!

Answers

Answer:

B (2,-3) A (7,-8)

Step-by-step explanation:

they are just the same points but in the negative side of the x-axis

In what quadrant does the angle 9pi/ 5 terminate?

Answers

the angle 4pi/5 in quadrent 2

9514 1404 393

Answer:

  9π/5 terminates in Quadrant IV

Step-by-step explanation:

The attached shows the terminal ray (OP) of the angle with measure 9π/5 ≈ 5.65 radians. It lies in the 4th quadrant.

A scuba diver is swimming 20 feet below the surface of the water. His wife is
swimming 6 feet above him. What is the elevation of his wife, relative to the
surface of the water? *
26 feet
14 feet
- 14 feet
- 26 feet

Answers

He is 20 feet underwater and she is 6 feet above him which makes her 14 feet underwater:
20-6= 14 ft!

Write an equation in standard form passing through the given point and parallel to the given line: (-1,-1) y = - x - 5

A: x - y = -2
B: x + y = 0
C: x - y = 0
D: x + y = -2

Answers

Option D, x + y = -2 is the equation in standard form passing through the (-1,-1) and parallel to y = -x - 5.

What is standard form?

The process of expressing a specific element in mathematics in the most typical way is known as standard form. Every element of mathematics, including big and small numbers, equations and lines, is designated in a standard form.

A standard form is a way of expressing a certain mathematical idea, such as an equation, number, or expression, in a way that adheres to a set of rules. The standard form is used to clearly represent extremely large or extremely small numbers.

To write an equation in standard form passing through the (-1,-1) and parallel to y = - x - 5, we need to find y-intercept form first

We know that parallel lines have same slope, so

y - y1 = m(x - x1)

y -(-1) = -1(x -(-1)

y + 1 = -x - 1

y = -x - 2

y + x = -2

Thus, Option D, x + y = -2 is the equation in standard form passing through the (-1,-1) and parallel to y = -x - 5.

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Match each expression on the left with an equivalent expression on the right. Some answer choices on the right will not be used.
3
16
0.85
100
0.425
0.375
3
4
0.316
0.38
40

20
0.1875

Answers

We have mapped the correct equivalent expressions.

3/16 ⇒ 0.1875

0.85 ⇒ 17/20.

3/8 ⇒ 0.375.

0.425 ⇒ 17/40.

What is the equivalent expression?

An equivalent expression is a mathematical expression that has the same value as another expression but is written differently. Equivalent expressions can be obtained by using the properties of arithmetic such as the commutative, associative, and distributive laws.

3/16 can be described as 0.1875

0.85 can be described as 17/20.

3/8 can be described as 0.375.

0.425 can be described as 17/40.

Hence, we have mapped the correct equivalent expressions.

3/16 ⇒ 0.1875

0.85 ⇒ 17/20.

3/8 ⇒ 0.375.

0.425 ⇒ 17/40.

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s/4 +5=13




How do i solve thissssssss

Answers

[tex]\dfrac{s}{4} +5=13[/tex]

Simplify:

[tex]\dfrac{1}{4} s+5=13[/tex]

Subtract 5 from both sides:

[tex]\dfrac{1}{4} s+5-5=13-5[/tex]

[tex]\dfrac{1}{4} s=8[/tex]

Multiply both sides by 4:

[tex]4\times(\dfrac{1}{4} s)=4\times(8)[/tex]

[tex]\fbox{s = 32}[/tex]

Answer:

s = 32.

Step-by-step explanation:

1. Write the expression.

[tex]\frac{s}{4} +5=13[/tex]

2. Subtract 5 from both sides of the equation.

[tex]\frac{s}{4} +5-5=13-5\\ \\\frac{s}{4} =8[/tex]

3. Multiply by "4" on both sides of the equation.

[tex]\frac{s}{4}*4 =8*4\\ \\s=32[/tex]

4. Verify.

If the result is correct, then the equation should return the same value of both sides of the equal symbol (=) when we substitute the variable "s" by it's calculated value, 32.

[tex]\frac{(32)}{4} +5=13\\ \\8+5=13\\ \\13=13[/tex]

As you can tell, the same number appears on both sides of the equal symbol, this means that the result is correct!

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Which statements are true? Select three options.
and are parallel.

Answers

Answer: line AB and RS are parallel because their lines do not interact anywhere on the model, because it is 3D. this is the only one i am sure of, you may have to ask another person to get the other two.

Answer:

A. Line AB and Line CG are parallel, C. Line CG and Line RS are perpendicular, and E. Line CG lies in plane X

Step-by-step explanation:

A. Line AB and Line CG are parallel is true because the arrows are pointing in the same directions and do intersect or cross each other.

B. Line AB and Line RS are parallel is false because although they do not intersect, they also do not go in the same direction. These are also not perpendicular lines because they do not intersect other, even though they make a right angle.

C. Line CG and Line RS are perpendicular is true because these lines intersect at exactly 90° angle (as shown by the square).

D. Line AB and Line RS must intersect is false because Line AB does not intersect Line CG (which is the line that does intersect Line RS).

E. Line CG lies in plane X is true because point C and point G are in plane X.

F. Line RS lies in plane X is false because point r and point 2 are in plane Y.

What is the length x of a diagonal support, to the nearest tenth of a foot?

CORRECT ANSWER

PROVIDE EXPLANATION

Answers

The length of x of a diagonal support is 13.8 feet.

What is the hypotenuse of a triangle.

The hypotenuse of a triangle is the length of the longest side of the triangle. So that it is always opposite to the measure of the largest angle of a triangle.

In the question given, divide the length of the footbridge into 2 parts.

So that,

Half of the footbridge = 25/ 2

                     = 12.5 ft

So that applying the appropriate trigonometric function to determine the value of x using any of the congruent triangles. We have;

Sin θ = opposite/ hypotenuse

Sin 65 = 12.5/ x

x = 12.5/ Sin 65

  = 12.5/ 0.90631

x = 13.792 feet

The length x of a diagonal support is 13.8 feet.

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3 ratios that are equivalent to 15/40

Answers

Answer:

3.8 ,6.16 , 9.24

Step-by-step explanation:

Which shape is NOT a trapezoid? I​

Answers

Answer:

a shape that is not a trapezoid is a a square or a triangle

Step-by-step explanation:

Find the median.
68.4, 57.6, 72.3, 105, 82.9, 120.3

Answers

Answer:

Median=

77.6

by-step explanation:

- Elaina <3

hope this help ;)

Please help me with this

Answers

Answer:

Heads has 3 branches - Blue, Yellow, Red

Tails has 3 branches - Blue, Yellow, Red

Step-by-step explanation:

Sample Space:

H/B

H/Y

H/R

T/B

T/Y

T/R

H/B

H/Y

H/R

6 possible outcomes

complete the square to find the vertex of this parabola x^2 + 14x-y-14=0 ​

Answers

Answer:

(-7,-63)

Step-by-step explanation:

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