Answer:
624
Step-by-step explanation:
the answer is 624 and he should multiply to get this answer.
78x8=624
Hi there!

We know that:
Area of a rectangle = l × w
The areas are the same, so:
3x · 4 = 6(3x - 2.5)
Simplify:
12x = 18x - 15
Solve for x:
15 = 6x
x = 2.5
Plug in this value of x to find the perimeter of rectangle B:
P = 2l + 2w
l = 6
w = 3(2.5) - 2.5 = 5
P = 2(6) + 2(5) = 22 cm
Answer:
7x + 6 = 55; x=7
Step-by-step explanation:
"six more than" -> +6
"product of seven and a number" -> 7x
7x + 6 = 55
7x = 55 - 6
7x = 49
x=7
Answer:
B. 434
Step-by-step explanation:
sorry for the late response! it’s 434. I worked out the problem & took the test, B is the correct answer.
Answer:
True
Step-by-step explanation:
The absolute value of -12 is 12 so both numbers are equal.
have a nice day :)