Question

3(9a + 6b) – (5a + 2b)

Part A:
Simplify the expression shown above.

Part B:
If a represents apples that cost $0.35 each and b represents bananas that cost $0.20 each, what is the total cost based on the expression above?

Answer 1

Answer:

Answer: part a : 3(14a-8b)

Step-by-step explanation: part a : you add 9a and 5 a since they have the same varible then you add 6b and 2b to get 8b which gets you your first answer of 3(14a-8b)

Answer 2

Answer:

Part A :

$22a + 16b$

Part B :

A/P,

Cost of apples : $7.70

Cost of bananas : 3.20

Step-by-step explanation:

$part \: a \: \\ 3(9a \: + 6b) - (5a + 2b) \\ = 27a + 18b - 5a - 2b \\ = 22a + 15b$

$part \: b \\ cost \: of \: apples \: = 22 \times 0.35 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:= 07.70 \\ cost \: of \: banana = 16 \times 0.20 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 03.20$

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