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3 years ago

WILL MARK BRAINEST PLZ HELP! What is the value of x? (With all of the details on how to get it.

Mathematics

1 answer:

klasskru [66]3 years ago

7 0

To find x:

Subtract 10 on both sides.

10 + 2x = 90

-10 -10

Divide 2 on both sides.

2x = 80

--- ---

2 2

This would get x alone.

x = 40

Check:

10 + 2(40) = 90

10 + 80 = 90

90 = 90

The value of x is 40. The angle degree of it is 80 when you multiply 2 by 40.

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In Jack's class, 7 out of 25 students have hazel eyes. What percent of the class has hazel eyes?

denis23 [38]

You're going to set up a proportion. % over 100 = is over of. You're looking for the percent so that's your x. X over 100=7 over 25. Cross multiply to get 25x=700. Divide both sides by 25 and your answer is 28%

4 0

3 years ago

What is the closest perfect square greater than 54

Anna35 [415]

Answer:

Step-by-step explanation:

Perfect squares are integers multiplied by themselves.

2 times 2 = 4
3 times 3 = 9
4 times 4 = 15

The closest perfect squares to 54 are 49 (7^2) and 64 (8^2).

49 is less than 54, so that's ruled out.

Therefore, the closest perfect square to 54 that is greater than it is 64.

6 0

3 years ago

What fraction of this shape is shaded?

Lilit [14]

15% it’s running
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5 0

2 years ago

There are 740 tickets purchased for a Major League Baseball game. The lower reserved tickets cost $9.50 and the upper reserve co

artcher [175]

375 lower reserved tickets were purchased and 365 upper reserved tickets were purchased

Step-by-step explanation:

Let x be the number lower reserved tickets

and

y be the number of upper reserved tickets

Then according to given statements

$x+y = 740\ \ \ \ Eqn\ 1\\9.50x+8y = 6482.50\ \ \ \ Eqn\ 2$

From equation 1:

$x = 740-y$

Putting in equation 2

$9.5(740-y)+8y = 6482.50\\7030-9.5y+8y = 6482.50\\7030-1.5y = 6482.50$

Subtracting 7030 from both sides

$7030-7030-1.5y = 6482.50-7030\\-1.5y=-547.5$

Dividing both sides by -1.5

$\frac{-1.5y}{-1.5} = \frac{-547.5}{-1.5}\\y = 365$

Putting y = 365 in equation 1

$x+365 = 740\\x = 740 - 365\\x = 375$

Hence,

375 lower reserved tickets were purchased and 365 upper reserved tickets were purchased

Keywords: Linear equations, Variables

Learn more about linear equations at:

#LearnwithBrainly

3 0

3 years ago

I need help help me please and no links please or I will report you

quester [9]

Answer:

Length: 11 meters

Width: 8 meters

Step-by-step explanation:

11 + 11 + 8 + 8 = 38

8 + 8 = 16

16 - 11 = 5

3 0

3 years ago