Question

4a = 2b − 7
(1 point)
Responses

–nine-halves


five-halves


nineteen-halves


17

Answer 1

The response for the equation 4a = 2b - 7 is "nineteen-halves".

Answer 2

Solve for r.

d = rt
(1 point)
Responses

r = dt
r = dt

r equals t over d
Image with alt text: r equals t over d

r equals d over t
Image with alt text: r equals d over t

r equals d minus t
Image with alt text: r equals d minus t

Answer 3

To solve for r in the equation d = rt, we need to isolate r by dividing both sides by t:

d/t = r

Therefore, the response is "r equals d over t".

Answer 4

Find the width of a rectangle with a perimeter of 90 and a length of 15.
(1 point)
Responses

90
90

15
15

45
45

30

Answer 5

To find the width of a rectangle with a perimeter of 90 and a length of 15, we need to use the formula for the perimeter of a rectangle:

Perimeter = 2(Length + Width)

Since the length is given as 15, we can substitute the values into the equation and solve for the width:

90 = 2(15 + Width)

Dividing both sides by 2:

45 = 15 + Width

Subtracting 15 from both sides:

30 = Width

Therefore, the width of the rectangle is 30.