She made the first error in Step 2, so the answer is B. -1 times -3 is 3, not -3.
Answer:
16cm
Step-by-step explanation:
Let the breadth = x
The length exceeds = x + 7
The breadth increased = x + 3
Because it said the length decreased by 4 so, the length would be:
x + 7 - 4 = x + 3
Original area:
We learn that:
area = length * breadth
x*(x+7) = (x+3)*(x+3)
x^2 + 7x = (x+3)^2
x^2 + 7x = x^2 + 6x + 9 (We also learn that (a+b)^2 = a^2 + 2ab + b^2
x^2 - x^2 + 7x - 6x = 9
x = 9 (so the breadth = 9)
The length = x + 7 = 9+7 = 16(cm)
Hope this help you :3
6 to 10 10-6 = 4 that is the range
Answer:
D. 144
Step-by-step explanation:
find the volume of the shipping container and divide it by the volume of a box.
× 
× 
= 
× × = 
divided by is 144.
House price = down payment + mortgage x number of months
430,000 = 250,000 + 2,000x where x is number of months
To find number or months solve for x
430,000 = 250,000 + 2,000x
Subtract 250,000
180,000 = 2,000x
Divide by 2,000
x = 90 months
12 months in one year
90 = 84 + 6 = 12 x 7 + 6
7 years and 6 months
