Answer:
x = 10
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define Equation
(7x - 1) + (13x - 19) = 180
Step 2: Solve for x
Combine like terms: 20x - 20 = 180Isolate x term: 20x = 200Isolate x: x = 10Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: (7(10) - 1) + (13(10) - 19) = 180Multiply: (70 - 1) + (130 - 19) = 180Subtract: 69 + 111 = 180Add: 180 = 180Here we see that 180 does indeed equal 180.
∴ x = 10 is the solution to the equation.
If shan buy 3 packs of pop for $12.57 how much is each pop for
Answer:
The answer is 4.19
Step-by-step explanation:
12.57 divided by 3 = 4.19
Hope this helps!! :)
Answer:
$4.19 for each pop hoped this helped!
Step-by-step explanation:
Mark me as brainliest!
The midpoint of \overline{\text{AB}}
AB
is M(-2, 5)M(−2,5). If the coordinates of AA are (1, 7)(1,7), what are the coordinates of BB?
The coordinates of the B is obtained as (-5, 3).
What is referred as coordinates?Coordinates are 2 numbers (Cartesian coordinates) or a letter and a number that point to a specific point on a grid known as a coordinate plane.
A coordinate plane does have four quadrants as well as two axes: x (horizontal) and y (vertical) (vertical). The point where the two axes intersect is known as the origin, and its coordinates are (0, 0).Coordinates are composed as (x, y), which means the x axis point comes first, accompanied by the y axis point.Now, as per the given question;
The coordinates of A is given as (1, 7).
The coordinates of mid point M is given as (-2, 5).
The coordinates are listed in pairs, with the x value at the top.
The shift in the x location is as follows:
1 - (-2) = 3
The change in y position is as follows:
7 - 5 = 2
Because the midpoint is half - way between B and A, the change will remain constant, so x is;
- 2 - 3 = -5
And for is;
5 - 2 = 3
Therefore, the values of the coordinates of B is found as (-5, 3).
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The correct question is-
If M (-2, 5) is the midpoint of AB and the coordinates of A are (1, 7), what are the coordinates of B?
can a smart person that is godly at geometry help me answer these four questions please? i will give you a virtual fake dollar and hug :)
Answer:
one dollar!?!??
Step-by-step explanation:
giiiiiirrrrrl u funny
Which undefined term is used to define an angle?
line
plane
point
ray
Classify this value -12 and give and explanation.
A. Rational
B. Irrational
C. Whole
D. Integers
Answer:
-12 is rational & an interger
Step-by-step explanation:
negative number are intergers
rational number can be made into fractions:
hence -12/1 is a fraction its rational
Mr. John has $800 to be shared in the ratio of 5:3 what amount would each receive
Answer:
500:300
Step-by-step explanation:
first add the ratios 5+3=8
then divide by 800
800÷8=100
now,
it's 500:300 .
hope I helped!
Answer: 500 : 300 because here Step-by-step explanation: Ratio Division Formula Rr = Rn × M : Rd × M Ratio Division Values Rn = 5 Ratio Numerator Rd = 3 Ratio Denominator Rs = Rn + Rd Rs = 5 + 3 Rs = 8 Ratio Sum a = 800 Amount to Divide M = a ÷ Rs M = 800 ÷ 8 M = 100 Multiplier Ratio Division Calculation Rr = Rn × M : Rd × M Rr = 5 × 100 : 3 × 100 Rr = 500 : 300
The cost of tea varies directly with the
mass. Liz bought 4.5 kg of tea for $10.35.
What is the constant of variation?
Answer: $27.6 is the constant of variation.
I hope this helped!
soy ell idredle a admana gua uag uga jjejeje
A store bought a pair of shoes for $50, and sold it for $80. What percentage was the markup?
Answer: The required markup percentage is 60%.
Step-by-step explanation: Given that the store bought a pair of shoes for $50 and sold it for $80.
We are to find the markup percentage.
The markup price of the pair of shoes is given by
Therefore, the markup percentage is given by
Sorry if i was wrong. But this soulution makes since so i think im right! Also please brainlest!
15 total kids were at the park. 6 of them were girls. What % of the kids were girls?
Answer:
40%
Step-by-step explanation:
6/15 = 0.4
0.4 * 100 = 40%
Answer:
40%
Step-by-step explanation:
Since there are 15 total kids and 6 of them are girls, we can write this question as the fraction 6/15.
6/15 is 0.4 and to get the percent you would multiply by 100%.
Therefore the answer is 40%
An employee receives a 6% raise each year. His salary this year is $25,000. Which two expressions will calculate his salary for next year?
Answer:
25,000x1.06 or 25,000/100=250x106=26,500
Step-by-step explanation:
Solve for f.
0.3 = 0.5 f - 0.7
Answer:
0.3 = 0.5 f - 0.7
+ 0.7 + 0.7
_______________
1 = 0.5 f
_________
0.5 0.5
2 = f ( f = 2 )
f = 2 or 2 = f
during the first 60 seconds of a rocket launch after takeoff, a rocket traveled 208 kilometers in 50 minutes at a constant rate. suppose a penny is dropped from a skyscraper and could travel 153 kilomaters in 1/2 hours at a constant rate. which of these objects has a faster unit rate per hour?
The unit rate of the penny dropped is faster than the rocket.
How to find unit rate?Unit rate is the ratio of two different units, with denominator as 1.
Therefore, rocket travelled 208 kilometres in 50 minutes at a constant rate and the penny dropped from a skyscraper could travel 153 kilometres in 1/2 hours at a constant rate.
The object that has the faster rate between the two can be found as follows:
50 minutes = 0.833333 hours
Rate of the rocket = 208 / 0.833333
Rate of the rocket = 249.60009984
Rate of the rocket = 249.60 km/hr
Rate of the penny dropped = 153 / 0.5
Rate of the penny dropped = 306 km/hr
Rate of the penny dropped = 306 km / hr
Therefore, the unit rate of the penny dropped is faster than the rocket.
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10) A game went on sale from $16.00 to $13.00. What is the percent of
change?
a) 18.13% increase
b) 18.75% decrease
c) 22.3% increase
d) 23.1 % decrease
Answer:
The answer is b) 18.75% decrease
Solve for the value of q.
(49-5)°
39°
What does the point (1, 3) represent on the graph?
image
A.
It shows for every 1 item produced the revenue is $3.
B.
It shows that for every 3 items produced the revenue is $1.
C.
It shows that for every 300 items produced the revenue is $100.
D.
It shows that the revenue is a constant rate of $1.
Answer:
A
Step-by-step explanation:
Assuming that items are on the x axis and revenue is on the y axis we can predict that for every 1 item produced the revenue is $3.
Technically speaking you can write the coordinate point as:
(1 item, 3 dollars in revenue)
Therefore, letter A would be correct.
I hope this helps!!
- Kay :)
We can say that any of the two given conditions are true -
It shows for every 1 item produced the revenue is $3.It shows that the revenue is a constant rate of $1.What is the general equation of a Straight line?The general equation of a straight line is -y = mx + c
[m] → is slope of line which tells the unit rate of change of [y] with respect to [x].
[c] → is the y - intercept i.e. the point where the graph cuts the [y] axis
Other possible equations of line are -
(y - y₁) = m(x - x₁) {Point - slope form}(y - y₁) = (y₂ - y₁) × (x - x₁)/(x₂ - x₁) {Two point - slope form}x/a + y/b = 1 {intercept form}x cos(β) + y sin(β) = L {Normal form}We have a the point (1, 3) represent on the graph.
Assume that we represent the item produced is mentioned along the [x] - axis and revenue generated is along the [y] - axis. Since, the graph is not given, we can assume that any one of the given condition is true -
It shows for every 1 item produced the revenue is $3.It shows that the revenue is a constant rate of $1.Therefore, we can say that any of the two given conditions are true -
It shows for every 1 item produced the revenue is $3.It shows that the revenue is a constant rate of $1.To solve more questions on straight line, visit the link below-
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Help! I need help asap
Answer:
3 looks right but I am not so sure
Step-by-step explanation:
sorry if i am wring
ASAP PLZ HELP WILL MARK AS BRAINLSIT
Answer:
9
Step-by-step explanation:
18/2=9
some birds migrate 20,000 miles. if 1 mile equals 1.6 km, calculate the distance these birds fly in km
If 1 mile equals 1.6 km, the distance these birds fly is 32000km.
Here we have,
Total miles = 20,000
Given, 1 mile = 1.6 kilometer
Thus, total km travel = 20000 x 1.6
Total km travel = 32000 km
A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity. Any other quantity of that kind can be expressed as a multiple of the unit of measurement.
Thus, some bird species travel 20,000 miles. These birds travel 32000 kilometers if a mile is equal to 1.6 kilometers.
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Please do this it’s on my test and I’m already late I can’t figure it out and I’m struggling so much please help me on this I need it badly
In order to solve how many problems each person has solved, you have to multiply the fraction by the number of problems on their assignment. To do this, you multiply the numberator by the number of problems and then divide that by the denominator for both Dustin and Kelsey.
For Dustin, 3/8 * 24 = 72 / 8 = 9 problems completed
For Kelsey, 4/15 * 30 = 120/15 = 8 problems completed
Dustin has completed more problems
Answer:9
Step-by-step explanation:
Dustin done more he done 9 and kelsey done 8
What is 25% of 80? in table form
Answer:
20
Step-by-step explanation:
Percentage solution with steps:
Step 1: Our output value is 80.
Step 2: We represent the unknown value with x.
Step 3: From step 1 above, 80=100%.
Step 4: Similarly, x=25%.
Step 5: This results in a pair of simple equations:
80=100% (1).
x=25%(2).
Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both
equations have the same unit (%); we have
{80} = {100%} {25%}
Step 7: Again, the reciprocal of both sides give
{80}= {25} {100}
x=20
Therefore, 25% of 80 is 20
sorry if this is hard to understand it was what was going on in my brain. Hope this helps tho byeeeeee
Which of the following are examples of irrational numbers? Select all that apply.
A. [tex]\sqrt{4} +\sqrt{16}[/tex]
B. [tex]\sqrt{5} + \sqrt{36\\}[/tex]
C. [tex]\sqrt{9} +\sqrt{24}[/tex]
D. [tex]2*\sqrt{4}[/tex]
E. [tex]\sqrt{49} *\sqrt{81}[/tex]
F. [tex]3\sqrt{12\\}[/tex]
The numbers √5 + √36, √9 + √24 and 3√12 are irrational numbers. (Correct choices: B, C, F)
Which numbers are irrational numbers?
Irrational numbers are a subset of real numbers that are not rational numbers, rational numbers comprises integers and non-integers. In this case, square roots are one of the most known cases of irrational numbers. Now we proceed to check if each choice represents indeed an irrational number by algebraic handling:
Case A
√4 + √16 = 2 + 4 = 6
Case B
√5 + √36 = √5 + 6
Case C
√9 + √24 = 3 + √(6 × 4) = 3 + 2√6
Case D
2√4 = 2 × 2 = 4
Case E
√49 × √81 = 7 × 9 = 63
Case F
3√12 = 3√(3 × 4) = 6√3
The numbers √5 + √36, √9 + √24 and 3√12 are irrational numbers. (Correct choices: B, C, F)
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Help pls !!
Math people
Answer:
none of the other answers are correct
Step-by-step explanation:
the range is the difference between the highest and lowest values in a set of numbers.
Answer:
second option
Step-by-step explanation:
The range of a function are the output values, that is the set of y values.
Does 2/7 =11/37 because idk
Answer:
no. i do not think so.
Step-by-step explanation:
Answer: If you were to do the butterfly trick 7x11=77 and 2x37=74 so no they are not equal
Step-by-step explanation:
The histogram represents the distribution of the number of seconds it took for each of 50 questions to find the answer to a trivia question the internet. which interval contains the median.
The interval that contains the median 25.5 is
(5 - 10)
What is a median?The median is the value that's exactly in the middle of a dataset when it is ordered.
We have a histogram as given below.
We need to make a table of class intervals and their frequency:
class interval frequency
0-5 22
5-10 5
10-15 9
15-20 9
20-25 5
25-30 1
We also need to find the cumulative frequency.
class interval frequency cumulative frequency
0-5 22 22
5-10 5 22 + 5 = 27
10-15 9 27 + 9 = 36
15-20 9 36 + 9 = 45
20-25 5 45 + 5 = 50
25-30 1 50 + 1 = 51
Now,
The number of questions = 50 ( even number)
Median:
= (50 + 1) / 2
= 51 / 2
= 25.5
We need to select the cumulative frequency where it is greater than the median.
So we have 27 which is at the interval (5 - 10).
Thus the interval that contains the median 25.5 is (5 - 10)
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Help plz.......... thx :)
Answer:
2 . 2 . 2 . 2 . 2 . 2, 4 . 16, 8 . 8
Step-by-step explanation:
2 times itself 6 times
read it again it says all that applies
Answer:
It is the one with the purple outline, and then the rest in that column
"The straight line of depreciation for a luxury car is modeled by the following equation:
y=-2,100x + 81,600
What is the original price of the car?"
A) $-2,100
B) $2,100
C) $81,600
D)$79,500
HI PLEASE HELP WITH #13 and #14
Answer:
13. ∠x° = 99°
y° = 108
a ≈ 21.38
14. x° = 99°
Step-by-step explanation:
The given diagram is the diagram of a kite, therefore, we have;
One Pair of opposite angles are equal
Therefore, ∠x° = 99°
y° = 360 - 2 × 99 - 54 = 108
The base angles are;
(180 - 108)/2 = 36°
Similarly we have;
The side opposite ∠54° = 12 × 2 × cos(36°) ≈ 19.416
a/sin(63°) = 19.416/sin(54°)
a = sin(63°) × 19.416/sin(54°) ≈ 21.38
14. x° = 99°
what is 1/3 of 1/9????????????
Answer:
God is better then satan
Answer: 3
Step-by-step explanation: 9/3 is 3
ty bought a notebook for $3 and pencils $2 if both items were on 25% off what did tyler spend
Answer: 1.25$
Step-by-step explanation:
25% of 5 dollars (total) is 1.25
6 (4x6) x 9 (5x9) judjsjdjdjddjdnnddnfndndndndndndndndn
Answer:
48 600
Step-by-step explanation:
6(4×6) × 9(5×9)
Solve the numbers in brackets first
6(20) × 9(45)= 120 × 405
= 4 8 600
Answer:
6(20) × 9(45)= 120 × 405
= 4 8 600