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a_sh-v [17]
3 years ago
8

Fort-eight students signed up to volunteer for a race. There were 3 equal groups of students and each group had a different task

. How many students were in each group?
Mathematics
1 answer:
notka56 [123]3 years ago
4 0

Answer:

16

Step-by-step explanation:

48 ÷ 3 = 16

hope this helps...

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Two payment options to rent a car: You can pay $20 a day plus 25¢ a mile (Option A) or pay $10 a day plus 50¢ a mile (Option B).
BaLLatris [955]

You must drive more than 40 miles to make option A the cheaper plan

<em><u>Solution:</u></em>

Two payment options to rent a car

Let "x" be the number of miles driven in one day

<em><u>You can pay $20 a day plus 25¢ a mile (Option A)</u></em>

25 cents is equal to 0.25 dollars

OPTION A :  20 + 0.25x

<em><u>You pay $10 a day plus 50¢ a mile (Option B)</u></em>

50 cents equal to 0.50 dollars

Option B: 10 + 0.50x

<em><u>For what amount of daily miles will option A be the cheaper plan ?</u></em>

For option A to be cheaper, Option A must be less than option B

Option A < Option B

20 + 0.25x < 10 + 0.50x

Solve the inequality

Add -0.50x on both sides

20 +0.25x -0.50x < 10 + 0.50x - 0.50x\\\\20 - 0.25x < 10

Add - 20 on both sides,

20 - 0.25x - 20 < 10 - 20\\\\-0.25x < -10

\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}

0.25x > 10

Divide both sides by 0.25

x > 40

Thus you must drive more than 40 miles to make option A the cheaper plan

7 0
3 years ago
Use a net to find the surface area of the cereal box.
lana [24]

Answer:

what is the side, length, and width

Step-by-step explanation:

6 0
3 years ago
$2,000 at 9% simple interest; deposit $1,600
earnstyle [38]

oops sorry.

180 was the 9% interest.

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3 years ago
10% of Kindergarteners know how to read before school starts. If there are 150 kindergarteners at a
Tamiku [17]

Answer:

15

Step-by-step explanation:

To get 10 percent, you divide by 10.

150 divided by 10 equals 15.

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3 years ago
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Factor each polynomial completely over the set of complex numbers.
S_A_V [24]

Answer:

1. a(x) = (x-4) (x-1) (2x+1) (x+3)


2. b(x) = (x^2-2) (x-5) (x+3)


3. c(x) = (2x-1) (x^2- 2x + 5)


3 0
3 years ago
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