<u>Boris:</u>
105 mins = 630 dishes
1 min = 630 ÷ 105 = 6 dishes
<u>Reuben:</u>
70 mins 630 dishes
1 min = 630 ÷ 70 = 9 dishes
<u>Boris and Reuben:</u>
1 min = 6 + 9 = 15 dishes
<u>Number of numbers needed to rinse 630 dishes:</u>
630 ÷ 15 = 42 mins
Answer: They will take 42 mins if they rinse the 630 dishes together.
Answer: 30.0 feet
Step-by-step explanation:
Let's say a stands for apples and p for pears
We know that

And

In order to know what the cost of an "a" is we have to put the value of the p in the second equation, which means



And

The price of per kilo for apples is 1.80
Answer:
Step-by-step explanation:
Square Root of 85
Answer:
6. 4.8m
7. a. 48 b. 31.4 c. 170
Step-by-step explanation:
6. 4.5^2 x 1.6^2 = c^2
22.81 = c^2
square root of 22.81 = 4.8
7.
a. 12^2 x 16^2 = c^2
400 = c^2
square root of 400 is 20, 20 + 12 + 16 = 48
b. 9^2 x b^2 = 13^2
88 = b^2
square root of 88 is 9.4, 9.4 + 9 + 13 = 31.4
c. 25^2 x b^2 = 65^2
3600 = c^2
square root of 3600 is 60, 60 + 60 + 25 + 25 = 170