Let x = times in the pool
Let y = times in the basketball courts

42=3x+5y
x+y=12
Therefore y = 12-x
Subsitute for y
42 = 3x + 5(12-x)
42 = 3x + 60 -5x
Subtract 60
-18 = -2x
9 = x

The person used the pool 9 times.

5 0

2 years ago

A student builds a model of a race car. The scale is 1:15 in the scale model,the car is 8cm tall. How tall is the actual car?

ycow [4]

Answer: 120cm

Step-by-step explanation i took the test

5 0

1 year ago

Last month, a factory produced 800 television sets. This month, the same factory produced 1,064 television sets. The increase in

Harlamova29_29 [7]

Your answer is 264
1,064 - 800= 264

5 0

3 years ago

If events A and B are independent, P(A) = 0.62, and P(

professor190 [17]

Answer:

Step-by-step explanation:

you’re given A=0.62 and B/A=0.93

you’re solving for B

substitute your A value of 0.62

B/0.62=0.93

same as B/0.62=0.93/1

now cross multiply

B= 0.62x0.93

B=0.5766

B=0.58

5 0

2 years ago