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sergejj [24]
3 years ago
15

Valerie ran Three and one-fourth laps yesterday, and her coach wants her to run Two and one-half times that many laps today. How

many laps will she need to run today? Choose the expression needed to solve the problem. Thirteen-fourths × Five-halves Thirteen-fourths × Two-fifths Four-thirteenths × Five-halves Four-thirteenths × Two-fifths
Mathematics
1 answer:
Maru [420]3 years ago
6 0

Answer:

13/4 * 5/2

Step-by-step explanation:

In the question, it says that her coach wants her to run 2 1/2 TIMES the original 3/4 she had ran. Therefore, you would want to make the fractions into improper fractions, and then multiply, which is how you would get 13/4 * 5/2.

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What's 3y + 5 and y + 24
cupoosta [38]
The answer is 4y + 29

The reason we get this as our answer is because it asks us to add these two expressions. Since we are adding, we can set it up to help us get a feel for what it should look like:

3y+5 + y+24

All we have to do to add these two expressions together is <u>combine like terms</u> and that will give us (3y+y) + (5+24) which is equal to 4y + 29

I hope this helped! :))

4 0
4 years ago
Simplify 7891 * 1/2 please help
Julli [10]
The answer to this question is:

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Hope this helps you Alan :)
8 0
3 years ago
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A police department in a small city consists of 10 officers. If the department policy is to have 5 of the officers patrolling th
meriva

Answer:

2,520

Step-by-step explanation:

The number of possible arrangements of officers patrolling the streets is the combination of choosing 5 officers out of 10 (₁₀C₅). After choosing the patrolling officers, the number of arrangements for the officers working full time at the station is given by the combination of choosing 2 officers out of the 5 remaining (₅C₂). The remaining officers should be on reserve at the station (₃C₃). The total number of arrangements is:

N = _{10}C_5*_5C_2*_3C_3\\N=\frac{10!}{(10-5)!5!} *\frac{5!}{(5-2)!2!}*\frac{3!}{(3-3)!3!} \\N=2,520

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5 0
3 years ago
Martinique an antwan had their bill at a restaurant reduced by $6 because of a special discount. They left a tip of $9.80,which
mafiozo [28]

Answer:

  $55

Step-by-step explanation:

Let b represent the original bill. The problem statement tells us ...

  20% × (b -6) = 9.80

Dividing by 20% gives ...

  b -6 = 49.00

  b = 55.00 . . . . . . . add 6

Their bill before the discount was $55.00.

___

<em>Comment on the tip</em>

It is generally considered better form to tip on the basis of the original bill before coupons and discounts.

4 0
3 years ago
Please any one help me how can I calculate m
victus00 [196]

Step-by-step explanation:

..........................

6 0
3 years ago
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