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3 years ago

How would I be able to get the step by step prosses of this and the answer of y?

Mathematics

1 answer:

Daniel [21]3 years ago

6 0

Answer:

y = 3

Step-by-step explanation:

-7 = -4y + 5

Subtract 5 from both sides to isolate variable y:

-7 - 5 = -4y + 5 - 5

-12 = -4y + 0

-12 = -4y

Divide both sides by -4 to isolate variable y:

-12 ÷ -4 = -4y ÷ -4

(Negative ÷ Negative = Positive)

3 = 1y

3 = y

Check your work:

-7 = -4(3) + 5

Use PEMDAS:

-7 = -12 + 5

-7 = -7

Correct!

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What's 9 + 10? What's 1 + 1? What's 2 + 2? What's 9 * 9? What's 12 * 12? What's 8999000 * 4499000

Vlad1618 [11]

Answer:9+10 is 19

1+1 is 2

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12 * 12= 144

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Step-by-step explanation:

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3 years ago

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Akira receives the prize at the science fair for having the most informative project her trophy is in the shape of a square pyra

mina [271]

Answer:

Akira needs 45 square inches of gold foil to cover the chair free including the bottom

Step-by-step explanation:

Total surface = surface area of the base square + area of 4 triangles

Step 1: The surface area of the base square

surface area of the base = surface area of the square = $s^2$

where s is the side length

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Step 2: The surface area of the side triangles 

The area of the triangle = $\frac{1}{2}\times \text{side length} \times \text{slant height}$

On substituting the values,

The area of the triangle = $\frac{1}{2} \times 3 \times 6$

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The area of the triangle = 9 square inches

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Thus the total surface area = 9 + 36 = 45 square inches

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3 years ago

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Help, please and thank you❤️

Tomtit [17]

Answer:

your answer should be 56.52 .

Step-by-step explanation:

this reason because is because radius is usually half of the diameter so just multiply 28.26 by 2

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3 years ago

All of the following are equivalent, except _____. 2x + x x(2 + 1) 2x2 3x

vagabundo [1.1K]

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50 POINTS PLEASE ANSWER QUICK Which function has the greatest value when x is equal to 0? A. x y 3 3 4 6 5 9 B. y = 4x – 7 C. 12

Delicious77 [7]

Answer:

C. 12x + 6y = 30

Step-by-step explanation:

A. x 3 4 5

y 3 6 9

We need to make and equation

slope = (y2-y1)/(x2-x1)

= (9-3)/(5-3)

6/2

The slope is 3

Using point slope form

y-y1 = m(x-x1)

y-3 = 3(x-3)

Distribute

y-3 = 3x-9

Add 3 to each side

y = 3x-9+3

y = 3x-6

Let x=0

y = 0-6

y = -6

B. y = 4x – 7

Let x = 0

y = 0-7

y = -7

C. 12x + 6y = 30

Let x = 0

12(0) + 6 y = 30

6y = 30

Divide by 6

6y/6 = 30/6

y =5

D. A linear function that goes through point 1, negative 1 and point 0, 4

The point ((0,4) says when x=0 y=4

y =4

y=5 is the max so the answer is C

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3 years ago