4a = 2b − 7
(1 point)
Responses
–nine-halves
five-halves
nineteen-halves
17
5 answers
The response for the equation 4a = 2b - 7 is "nineteen-halves".
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
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
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".
d/t = r
Therefore, the response is "r equals d over t".
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
(1 point)
Responses
90
90
15
15
45
45
30
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.
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.