Answer:
Step-by-step explanation:
Answer:
letter a
Step-by-step explanation:
0.3 + 0.4= 0.8
Answer:
Check pdf
Step-by-step explanation:
We set up a proportion: 14/50= ?/100
Cross multiply: 50*?= 14*100
⇒ ?= 14*100/50= 28
14 is 28% of 50.
Answer:
8 Wallets cost 8 * 43 = 344 $
Step-by-step explanation:
The text provides us with the following system:
1. B = 2W + 58
2. 632 = 2B + 8W
Which can be re-evaluated to:
1. B - 2W = 58
2. 2B + 8W = 632
We multiply 1. with 2 and get:
1. 2B - 4W = 116
We then subtract 1. from 2. and get:
12W = 516 --(:12)--> W = 43
We then insert W = 43 into 1.:
B = 2*(43) + 58
--> B = 86 + 58 = 144