Answer:
2a(a+2b) square metres
Step-by-step explanation:
surface area of a box = 2(lw+wh+lh)
l is the length = a metres
w is the width = a mtres
h is the height = b metres
Substitute into the formula
surface area of a box = 2(a*a+ab+ab)
surface area of a box = 2(a² + 2ab)
surface area of a box = 2a(a+2b) square metres
This give sthe surface area of the box
21) 473 1/5
22) 1/3
23) 4 1/4
Answer:
The student could not divide out (2 – x) and (x – 2) as written.
Step-by-step explanation:
B is the correct answer.
Sid wrapped 8 gifts.
Look at the equation Sid wrote to caclulate the cost to wrap each gift. (6.80 + 7.35) / 8. 6.80 represents the total paid for wrapping paper. 7.35 represents the total amount paid for ribbon. Knowing that information, using the equation, and knowing who Sid wrapped gifts for, we can infer Sid wrapped gifts for 8 cousins.
Answer:
Equations:
3c + 4m = 12.50
3c + 2m = 8.50
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Subtract and solve for "m"::
2m = $4
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Ans: m = $2.00
Step-by-step explanation: