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kicyunya [14]
3 years ago
14

Simplify the expression and then evaluate it for the given value of the variable:

Mathematics
1 answer:
skad [1K]3 years ago
7 0

Answer:

25.9

Step-by-step explanation:

12+7x−(1−3) (evaluate parentheses first)

= 12+ 7x - (-2)

= 12+ 7x + 2

= 14+ 7x

When x = 1.7, equation becomes

14+ 7(1.7)

= 14 + 11.9

= 25.9

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What percentage of students under age 15 travel to school by car? Round to the nearest whole percent. 11% 18% 41% 80%
bixtya [17]

Answer:

11%

Step-by-step explanation:

We need to fill the missing cells of the table first and are interested in first row for under age 15

1. 152- 65= 87 for the top left cell

2. 165- (87+60)= 18 for car column on same row

now we have number 18 and the total of the first row is 165:

  • 18/165*100%= 10.9%

So the first choice- 11% is the answer

3 0
3 years ago
A soccer team played 25 games last season. They won 16 games, lost 5 games, and tied the rest.
goldenfox [79]

Answer:

16% or 4/25

Step-by-step explanation:

16 + 5 = 21

25 - 21 = 4

4/25 = 16%

This is right because 21/25 is 84% and 84% + 16% = 100%

6 0
3 years ago
Arie ran an equal number of miles each day for 12 days. He ran 60 miles in total.
Nezavi [6.7K]

Answer:

5 miles/day

Step-by-step explanation:

This is a division problem.

(60 miles)/(12 days) = 5 miles/day

7 0
3 years ago
Read 2 more answers
The volume of a cylinder is 176 π cm and its height is 11 π cm.
Liula [17]

Answer:

r = sqrt(16/pi)

Step-by-step explanation:

Cylinder formula = r^2 x pi x height

176 pi/11pi = 16

16 = r^2 x pi

16/ pi = r^2

r = sqrt(16/pi)

6 0
2 years ago
What is the surface area of the triangular prism?
horrorfan [7]
C)132
All you do is find the area of each flat surface and add them together.
(rectangle) A=w×h
(triangle) A=w×h/2
6 0
3 years ago
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