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2 years ago

What value of y makes the following equation true?

Mathematics

2 answers:

dimaraw [331]2 years ago

8 0

Answer:

$7y + y - 2y = 18 \\ 6y = 18 \\ y = \frac{18}{6} = \frac{9}{3} = 3 \\ y = 3 \\ thank \: you$

Sedbober [7]2 years ago

3 0

Answer:

y = 3

Step-by-step explanation:

$\rm 7y+y-2y=18$

$\rm 8y-2y=18$

$\rm 6y=18$

$\rm y = 18 \div 6$

$\rm \bold{y = 3}$

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Rewrite 8y - 1/2 (4y - 16) in a different form

worty [1.4K]

Answer:

8y-2y+8=0

6y+8=0

y=8/6=4/3

4 0

2 years ago

Explain when the median of a data set is a better<br> measure of center than the mean.

Delvig [45]

Answer:

The median of a data set is better when you have a term or terms that are not close to the other terms

Step-by-step explanation:

For example:

Say you have the data set

1, 15, 17, 18, 22, 84

The median of these terms would be 17.5

(it is the exact center of the data group)

17 + 18 = 35

35/2 = 17.5

The mean of these terms would be 26.17

(this number is not close to the center because the numbers 1 and 84

are not close enough to the other terms)

1 + 15 + 17 + 18 + 22 + 84 = 157

157/6 = 26.17

7 0

2 years ago

Read 2 more answers

Volunteers helped clean up 8.2 kg of trash in one neighborhood and 11 1/2 kg in another. They sent 1 1/4 kg to be recycled and t

Ivan

Answer: $18.45\ kg$ or $18\frac{9}{20}\ kg$

Step-by-step explanation:

We can convert from mixed numbers to decimal numbers:

$11\frac{1}{2}\ kg=(11+0.5)\ kg=11.5\ kg\\\\1\frac{1}{4}\ kg=(1+0.25)\ kg=1.25\ kg$

Since they cleaned up 8.2 kilograms of trash in one neighborhood and 11.5 kilograms in another neighborhood, the total trash they cleaned up was:

$Total=8.2\ kg+11.5\ kg\\\\Total=19.7\ kg$

We know that they sent 1.25 kilograms to be recycled. Then, in order to calculate how many kilograms of trash they threw away, we must subtract the total kilograms of trash they cleaned up and the kilograms they sent to be recycled.

Then:

$19.7\ kg-1.25\ kg=18.45\ kg$ or $18\frac{9}{20}\ kg$

8 0

3 years ago

Read 2 more answers

The circumference of a circle is 18.84 inches. what is the circle's radius

vivado [14]

Answer:

Circumference : 18.84 inches

Radius: 3 inches

6 0

2 years ago

PLEASE HELP,, thank you so much if you do

taurus [48]

Answer:

(x)^2+(5)^2=(9)^2

Step-by-step explanation:

(a)^2+(b)^2=(c)^2

(x)^2+(5)^2=(9)^2

x^2+25=81

-25 -25

x^2=56

x=28

p.s. this ^2 means squared

3 0

3 years ago

What value of y makes the following equation true?​

What value of y makes the following equation true?