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bekas [8.4K]
2 years ago
13

- 3y - 7=5y + 17 solve for y

Mathematics
1 answer:
KengaRu [80]2 years ago
8 0

Answer: y=-3

Step-by-step explanation:

- 3y - 7=5y + 17

-7=8y+17

8y=-24

y=-3

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What is the sum of five times a number and -6 is -2?
padilas [110]

It would be 5x-6 = -2

5x = -2+6

x = 4/5

Number would be 4/5

4 0
3 years ago
A collector has 100 movie posters and 80 band posters. She wants to sell 30 movie posters but still have her poster collection m
umka2103 [35]

Answer: 24 band posters should be sold

Step-by-step explanation:

First take the expression down to its simplest form;

= 5:4

Assume she sells 30 movie posters, her movies posters drop to;

= 100 - 30

= 70 movie posters

We need a number of band posters remaining that will give a ratio of 5:4 with movie posters.

In fraction form, the number of movie posters is;

= 5/9 because 9 would be the total number of both movie posters and band posters.

Create an expression to find the total number of posters if 70 are movie posters;

5/9x = 70

x = 70 ÷ 5/9

x = 126 posters

Number of band posters that should be left are;

= 126 - 70

= 56

Number of band posters that should be sold;

= 80 - 56

= 24 posters

<em>The new ratio would be 70:56.</em>

5 0
3 years ago
Bailey just ran four miles outside. Her time for each mile was 9.05 / 8.24 / 10 / 9.22. How long did it take for her to run all
larisa86 [58]

Answer:

36.51

Step-by-step explanation:

If Bailey ran four miles, then the time that is given for each of her miles should be added together to find out her total time.

9.05 + 8.24 + 10 + 9.22

You can break it down into chunks to make it easier for you:

9.05 + 8.24

= 17.29

___________

9.22 + 10

= 19.22

_________________________________________________

Then you can just add both values together to find out the total

_________________________________________________

17.29 + 19.22 = 36.51

7 0
4 years ago
Round 198.1 to the nearest tenth,hundredths,hundred
galina1969 [7]

Answer:

200

Step-by-step explanation:

3 0
3 years ago
A circle has a radius of 5 inches (What is the measure, in radians, of this central angle?
Anastaziya [24]

Answer:

Step-by-step explanation:

Given

Circle has radius r=5 in.

Area of the sector is given by

A_s=\frac{\theta }{2\pi }\times \pi r^2

if A_s is one-sixth  of area of circle then

A_s=\frac{\pi r^2}{6}

\frac{\pi r^2}{6}=\frac{\theta }{2\pi }\times \pi r^2

\theta =\frac{2\pi }{6}=\frac{\pi }{3}\ radian

If A_s is one-fourth of area of circle then

A_s=\frac{\pi r^2}{4}

\theta =\frac{2\pi }{4}

\theta =\frac{\pi }{2}

3 0
4 years ago
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