Sue wants to use mental math to find 7 times 53. Write an expression she could use.

Answers

Answer 1

Answer: She could multiply 50x7 and than 3x7 and add those two together.
50 x 7 = 350
3 x 7 = 21
21 + 350 = 371

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Solve -0.5(–2x+8) – 8 = 8.

Answers

Answer:

x = 20

Step-by-step explanation:

Firstly, we have to distribute: (-0.5 * -2x) and (-0.5 * 8) -8 = 8

1x - 4 - 8 = 8

Next collect like terms: 1x - 12 = 8

Isolate x to get the value of x: Add 12 to both sides

1x = 20

So x = 20

Answer:x=20

Step-by-step explanation: first you distribute the value outside of the parentheses

-0.5*2x= 1x

-0.5*8=-4

it then becomes

x-4-8=8

combine -4 and -8

x-12=8

add the 12 over

x=20

$31.75 divided by 8 rounded

Answers

3.97 if the number on the right is 5 of higher, it rounds up

$31.75 divided by 8 rounded = 3.96875

−6 = 2/ 3 x NEEEEEED HELPPPPPPPPP
a. = −9
b. = −6
c. = 4
d. = −4

Answers

If a = b x c then c = a/b

So the number you're looking for is -6 / 2/3, which is -6 * 3/2 = -9

M<N = (5x) and m <l=(x+20). What is the value of X?10
5
4
20

Solve and explain how you got your answer

Answers

Answer:

x = 5

Step-by-step explanation:

The figure shows two pairs of opposite sides parallel, so quadrilateral KLMN is a parallelogram. Angles N and L are opposite angles in a parallelogram, so their measures are equal.

m<N = m<L

5x = x + 20

4x = 20

x = 5

The perimeter of a rectangle is 96 ft. The ratio of the length to the width is 7:5. what are the dimensions of therectangle?

Answers

Perimeter = 2(l + w) = 2(7x + 5x) = 2(12x) = 24x = 96
x = 96/24 = 4.
Therefore, length = 7 x 4 = 28 ft and width = 5 x 4 = 20ft

What is the value of y so that the ordered pair (2, y) is a solution to the equation 2x+y=-2?A.
–6

B.
–2

C.

D.
0

Answers

x=2
y=-2-2x=-2-4=-6
so you choose a

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