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3 years ago

An English class consists of twenty students, and four are to be chosen to give speeches in a school competition.

1 answer:

4 0

A)If the order of the speakers is important, we have 20x19x18x17, or 116,280 different options.
b) If order is not important, then we have 20 choose 4, or 4845 different slates. ☺☺☺☺

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The product of Greg's savings and 3 is 57.

Norma-Jean [14]

Answer:

Greg's savings: 19 x 1

Step-by-step explanation:

57 / 3 = 19

19 is prime, so Greg's savings has to be 19 x 1.

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2 years ago

Estimate 148% of 103

hammer [34]

Answer:

152.44

Step-by-step explanation:

148/100*103=152.44

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3 years ago

Can anyone help me with this problem? Im really confused. If you could please,, explain it to me? I would really appreciate it.

Molodets [167]

Answer:

Below in bold.

Step-by-step explanation:

Amount originally in the cup = amount she drank + amount remaining

= 17 * 4.5 + 148.5

= 76.5 + 148.5

= 225 milliliters.

The time she takes to drink the 148.5 mL = 148.5 / 4.5

= 33 seconds.

So time to drink it all = 17 +33 = 50 seconds.

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3 years ago

If R is the midpoint of OS , RS = 2x - 4, ST = 4x – 1, and RT = 8x – 43, find QS.

RoseWind [281]

Answer:

Step-by-step explanation:

5 0

2 years ago

What is the interest rate $2,200 at 7.5% for 3 1/4 years

Phoenix [80]

Answer:

$536.25

Step-by-step explanation:

First, you need to find what 7.5% of $2,200 is,

(2200/100)7.5=165

then to find how much interest has accumulated over 3 1/4 year you need to multiply the one-year interest rate by the 3.25

(165)3.25=536.25

5 0

3 years ago