2 years ago

Hayden is building toy cars. Each car needs 4 wheels. How many wheels will Hayden use to build 3 toy cars?

Mathematics

1 answer:

ycow [4]2 years ago

8 0

Answer:

Step-by-step explanation:

Three cars each need 4 wheels, so that is...

4 + 4 + 4 wheels, which is 12 wheels

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Suppose that a class contains 15 boys and 30 girls, and that 10 students are to be selected at random for a special assignment.

natka813 [3]

Prob of selected students times prob of selecting boys times prob of selecting 3 boys
total students = 15b + 30g = 45 students

1. 10s/45t = 0.22
2. 15b/45t = 0.33
3. 3b/15b = 0.2

0.22×0.33×0.2=0.0148

1.48%

I'm not sure 100%... double check answer please

3 0

2 years ago

5 (10k + 1) + 2 (2 + 8k)

Eddi Din [679]

Answer:

66k+9

Step-by-step explanation:

Simplify: 50k+5+4+16k

Combine like-terms: 66k+9

Hope this helps

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2 years ago