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Hitman42 [59]
3 years ago
12

Write a verbal sentence to represent 5x+7=18

Mathematics
2 answers:
Romashka-Z-Leto [24]3 years ago
7 0
Five times x plus seven equals eighteen 
Minchanka [31]3 years ago
5 0
Five times x plus seven equals eighteen.

Hope this helps

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Use a proportion to determine the number of children age 5 in a kindergarten class if 80% of a class of 20 children are that age
igor_vitrenko [27]

Answer:

16 children

Step-by-step explanation:

80% of 20 children comes out to 16 children who are of age 5.

If desired, rewrite "80%" as "0.80" and use that 0.80 as the multiplier of 20:

0.80(20 children) = 16 children.

4 0
3 years ago
Solve each system by elimination.
strojnjashka [21]

Answer:

y = -1, x = -2

Step-by-step explanation:

First, multiply the top equation by 2 to make 3x become 6x:

6x - 8y = -4

Second, multiply the bottom equation by 3 to make -2x become -6x:

9y - 6x = 3

Add the two equations together, and you get:

y = -1

Plug in y as -1 into the first or second equation:

3x - 4(-1) = -2

OR

3(-1) - 2x = 1

x = -2

5 0
3 years ago
Which point best approximates ? <br><br><br> A<br> B<br> C<br> D
snow_lady [41]

√36 = 6

√49 = 7

√45 is between 6 and 7


so √45 must be less than 7 but close to 7


Estimate answer is C.

6 0
3 years ago
Read 2 more answers
A hiker walked 12.8 miles from 9:00 a.m. to noon. He walked an additional 17.2 miles from 1:00 p.m. to 6:00 p.m. What is his ave
marishachu [46]
The average speed is the distance divided by the time.

Total distance:
12.8 miles + 17.2 miles = 30 miles

Total time:
noon - 9:00 a.m. = 3 hours
6:00 p.m. - 1:00 p.m. = 5 hours
Total time = 3 hours + 5 hours = 8 hours

average speed = 30 miles / 8 hours = 3.75 miles per hour
6 0
3 years ago
Please help me I have no idea what I'm doing :(​
Charra [1.4K]

Answer: A. 100%

Step-by-step explanation:

6 0
2 years ago
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