4 years ago

What is 15+9+20+22+9 then x 5?

Mathematics

2 answers:

AfilCa [17]4 years ago

6 0

Answer: oops 375 idk what happend

Step-by-step explanation:

tysm

swat324 years ago

4 0

The answer is 375. I hope this helps :)

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The ratio of boys to girls is 4:3 .T here are 35 students in a class how many students are boys ?? Pleaseee help

evablogger [386]

There are 20 boys in the class. The ratio is 4:3 so that means 4 out of 7 are boys and 3 out of 7 are girls. Divide 35 by 7 and you get 5. 5 times 4 is 20. 5 times 3 is 15. add them together and you have 35 students in total. So 20 students are boys and 15 students are girls.

8 0

3 years ago

Suppose that an urn contains 3 black marbles, 7 yellow marbles, and 10 green marbles. If one marble is selected, determine the p

Yuliya22 [10]

Answer:

1/2

Step-by-step explanation:

Simple probability is a ratio of the number of ways the thing we want to happen can to the total possible outcomes.

(For example, we flip a coin and want heads, but it can land on heads or tails. Our probability of getting heads is 1/2, one way to get heads over the 2 possible outcomes)

So for this problem, there's 20 possible things that CAN happen (3 + 7 + 10) and 10 ways we get what we want (a green marble).

Our probability of getting a green marble is $\frac{10}{20\\}$ , which simplifies to $\frac{1}{2}$