Please someone summarize this for me

Answer:

Jenny had 9 incorrect answers.

Step-by-step explanation:

We know that Jenny earned 104 of a possible 140 points on a test.

140 - 104 = 36

We also know that she lost 4 points for every incorrect answer.

36 ÷ 4 = 9

Therefore, Jenny had 9 incorrect answers.

Hope this helps! :D

Answer:

9 questions incorrect

Step-by-step explanation:

Make an Equation

104+x(4)=140

X is for incorrect answers and since each incorrect answer is Worth 4, multiply x by 4. The 104 is the point Jenny orignally got so we put that in the equation to find how many Incorrect she got.

Solve the equation

104+4x=140 Subtract 104 on both sides

4x=36   Divide 4 on both sides

x=9   X=9

Answer:

Component form : (-7 , 2)

Step-by-step explanation:

P(4 , 5) = P'(4 +x , 5+y) = P'(-3 , 7)

4 + x = -3

    x = -3 - 4

    x = -7

5 + y = 7

     y = 7 - 5

     y = 2

Vector form : -7i + 2j

Component form : (-7 , 2)

The equation that represents the situation is:

9 + 3x  =  6(x  -  3)

The value of x is x = 9

Let the number be represented by x

Triple the number = 3x

9 added to the number that is produced by tripling the number x = 9 + 3x

3 less than x  = x - 3

6 times the number that is 3 less than x = 6(x - 3)

Therefore, the equation that illustrates the situation is:

9 + 3x  =  6(x  -  3)

Solve for x in the equation above

9 + 3x = 6x  -  18

6x  -  3x  =  9  +  18

3x   =  27

Divide both sides by 3

3x/3  =  27/3

x  =  9

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Answer:

Janet hiked 18 miles during the past week.

Step-by-step explanation:

Length of hiking trail = 3.6 miles

Number of days she hiked during past week = 5 days

We need to find how many miles has Janet hiked in the past week?

We will multiply length of trail with number of days she hiked that trail

Miles Janet hiked in the past week = 3.6 * 5

                                                           = 18 miles

So, Janet hiked 18 miles during the past week.

Answer:

D

Step-by-step explanation:

x -91

Answer:

The answer is B. X /91

Step-by-step explanation:

All the other answers indicate the number is/will end up being bigger than 91

Answer: 108

Step-by-step explanation: The equation to find the surface area of a square pyramid is s^2+2*s*l.

The area of the square base is equal to s2

The area of one triangle is equal to (s × l)/2

The slant height of a square pyramid equals (l)

Since there are 4 triangles, the area is 4 × (s × l)/2 equals 2 × s × l

Therefore, the surface area, call it SA is Surface Area (SA)=  s2

 +  2 × s × l

so if you plug in the numbers you get 6^2+2*6*6 which equals 108

Answer:

The Answer is 108 feet squared.

Square Surface Area-

A= LxW

A= 6x6

A= 36

Triangle Surface Area-

A= 1/2 bh

A= 1/2 6x6

A = 1/2×36

A= 18

Since there are 4 Triangle multiple 18×4= 72

so... 72+36= 108

BOOM!! LOL

Answer:

Step-by-step explanation:

Area of the coin:

[tex]A_c = d\pi\\\\A_c = 2.8\pi\approx8.8\ cm^2[/tex]

So area of the ring:

A = 8.8 - 2.0 = 6.0 cm²

Answer:

4.15

Step-by-step explanation:

d = 2.8cm,  a = 1.4cm

a = πr2

a = 3.14 * 1.42

a = 3.14 * 1.96

a = 6.15cm2

6.15 - 2 = 4.15

The area of the nickel ring is 6.15cm2

Using proportions, it is found that you would expect to see camels, wombats, and kangaroos for the next 57.17 miles.

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct(when both increase or both decrease) or inverse proportional(when one increases and the other decreases, or vice versa), can be built to find the desired measures in the problem, or equations to find these measures.

Each km has 0.621371 miles, hence:

92 km = 92 x 0.621371 = 57.17 miles.

You would expect to see camels, wombats, and kangaroos for the next 57.17 miles.

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Answer:

She will owe the bank $24.62

Answer:

1) 5x - 4 ≥ 12

5x ≥ 12 + 4

5x ≥ 16

x ≥ 16/5

2) 12x + 5 ≤ -4

12x ≤ -4 - 5

12x ≤ -9

x ≤ -9/12

Step-by-step explanation:

Answer:

See the picture attached. The purple line is y=3x+6 and the red line is y=3x+1.

Step-by-step explanation:

When graphing lines, start with the y-intercept and then use the slope to plot points to help you draw the line.

The equations are in y=mx+b form, where mx is the slope and b is the y-intercept. To get the points, plug in a number where x is. Whatever result you get is the y coordinate for that number.

For example, on the graph in the picture 3(1)+1 = 4. Using that, you would plot the point (1,7).

Hope that makes sense!

According to the given triangle the value of sin A = 4/5

In a right-angled triangle, the sin of an angle is equal to the ratio of the opposing side to the hypotenuse according to the sin theta formula.

Sin A = Opposite angle / hypotenuse= 4/5

There are about six trigonometric ratios—sine, cosine, tangent, cosecant, secant, and cotangent—which describe the many configurations that can be made in a right-angled triangle.

Trigonometry can only be used to solve a side of a right-angled triangle when the lengths of the other two sides and the angle of a side are already known. Before utilizing algebra to determine the value for the unknown side, one must first select a ratio that includes both the unknown and the given sides.

We are aware that the angle-length relationship in right-angled triangles will be covered in trigonometry.

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In the picture there is a triangle with ABC angles. Sides AB=5, BC=3, CA=4. The ratio of SinA=3/5.

Given that,

In the picture there is a triangle with ABC angles.

Sides AB=5, BC=3, CA=4

Trigonometric ratios, which contain the values of all trigonometric functions, are based on the ratio of sides of a right-angled triangle. The ratios of a right-angled triangle's sides with regard to a certain acute angle are known as its trigonometric ratios.

The right triangle's three sides are as follows:

Hypotenuse (the longest side)

Perpendicular (opposite side to the angle)

Base (Adjacent side to the angle)

According to the sin theta formula, the sin of an angle in a right-angled triangle is equal to the ratio of the opposite side to the hypotenuse.

Sin A = Opposite side / hypotenuse

SinA=3/5

Therefore, SinA=3/5.

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Answer:

I think 22 but not really sure

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

i think this is right

Step-by-step explanation:

just substitute them in the x and y variables.

if the answer is equal to the answers on the other side of the equation than it correct

Answer:

x=3 , y=-6

Step-by-step explanation:

 x − 2y = 15 is one of the problems. so x in this problem stays as 3, and double of y is -12, so if we take 3 - (-12) or more simply, 3+ 12, which is 15.

2x + 4y = -18  is the other problem. so x is doubled making x equal to 6, and four times y, or -6, is equal to -24 . So bringing the while thing together, 6 + -24, or put more simply, 6-24=-18, making the answer

x=3 , y=6

Answer:

x = -8 ± √77

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Property

Algebra I

Step-by-step explanation:

Step 1: Define

x² + 16x - 2 = 11

Step 2: Solve for x

the answer its 12.5% i swer its ok and hope helps you

Answer:

speed = 469 miles per hour

speed = 312.6667 miles per hour

Step-by-step explanation:

The speed along wind is 469 mph and against wind is 312.66 mph.

Given:

Boeing 747 travels 938 miles with the wind in two hours.

and, Boeing 747 travels 938 miles against the wind, takes three hours

So, speed along wind

= 938 / 2

= 469 mph

and, speed against wind

= 938 / 3

= 312.66 mph

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The three positive integers are estimated as (6, 1, 5), (6, 2, 4), (6, 3, 3), (5, 1, 6), (5, 2, 5), (5, 3, 4).

Positive integers are integers that would be on the right side of 0 on a number line. These integers have a value greater than zero.

Now, as per the given question;

Let the three number be a, b and c.

The range of the number are given as 7.

Then,

(0 < a < 7), (0 < b < 7) and (0 < c < 7)

The mean of the number is defined as 4.

Thus,

(a + b + c)/3 = 4

So, (a + b + c) = 12.

Now, apply the Enumeration method;

Case 1: If a = 6 (a < 0), then (b + c) = 6. This, is possible for the set,

Case 2: If a = 5 (a < 7), then (b + c) = 7. This is possible for the set,

Therefore, the given three positive integers could be;

(6, 1, 5), (6, 2, 4), (6, 3, 3), (5, 1, 6), (5, 2, 5), (5, 3, 4).

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Answer:

Step-by-step explanation:The population in the trapezoid-shaped region shown is about 7000 people. How many people are there per square mile?

Answer:

y = 4

or (0, 4)

Step-by-step explanation:

intersecting the y-axis is basically when x is equal to 0.

1.5(0) +4.5y = 18

y = 4

So your y-intersect is (0, 4) and thats when it intersects the y-axis.

Answer: 4a + 16

Step-by-step explanation:

Answer:

x = 28

Step-by-step explanation:

Answer:

The correct answer is no.

Step-by-step explanation:

If a number is a factor of another number, that means that it can be equally divided into it evenly.

I know that 3 x 20 = 60, and 73 - 60 = 13.

Since 3 is not a factor of 13, it is also not a factor of 73.

Hope this helps! :D

Answer:

C. 6.8, because |6.8|= 6.8

Step-by-step explanation:

The magnitude of a directed number is a property that turns the number to a positive of its value. Thus, the magnitude of a negative number equals its positive value. Examples:

Find the magnitude of the following numbers:

i. -20

ii. 10

iii. -5

iv. 2

The magnitudes of the numbers can be expressed as:

i. |-20| = 20

ii. |10| = 10

iii. |-5| = 5

iv. |2| = 2

Therefore, the magnitude of 6.8 = 6.8, because |6.8|= 6.8.

Answer: A equation that could have "x= -3" as a solution could be "235x - 18 = -723".

Answer:

110

Step-by-step explanation:

Bigger then 90 less than 120

Answer:

D: Yes, a reasonable estimate is around 5 · $7 = $35.

Step-by-step explanation:

None