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3 years ago

Please help! Thanks alot

Mathematics

2 answers:

Rina8888 [55]3 years ago

6 0

kfkffjdjdkkekkekzkzkefnfnfnfnddn

wlad13 [49]3 years ago

3 0

Answer:

37.5 , 67.5 , 75

Step-by-step explanation:

$x+x+30+2x=4x+30=180\\4x=150\\x=37.5\\$

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Find the value of x.<br> xo<br> (x-20)<br> (2x + 10)<br> (x + 40)

kykrilka [37]

Answer:

Step-by-step explanation:

We can write the following equation to solve

$360 = x + (2x + 10) + (x - 20) + (x + 40)$

Reduce

360 = 5x + 30

5x = 330

x = 66

7 0

2 years ago

At the city museum, child admission is $5.20 and adult admission is $9.50. On Friday,133 tickets were sold for a total sales of

fredd [130]

Answer:

55 adult tickets were sold on Friday.

Step-by-step explanation:

A linear system will be used to model the system.

Let c be the number of child tickets and a be the number of adult tickets

Then according to given statements

$a+c = 133\ \ \ \ Eqn\ 1\\9.50a+5.20c = 928.10\ \ \ Eqn\ 2$

From equation 1

$a = 133-c$

Putting this in equation 2

$9.50(133-c)+5.20c = 928.10\\1263.5-9.50c+5.20c=928.10\\1263.5-4.3c = 928.10\\-4.3c = 928.10-1263.5\\-4.3c=-335.4\\\frac{-4.3c}{-4.3} = \frac{-335.4}{-4.3}\\c = 78$

Putting c = 78 in equation 1

$a+78 = 133\\a = 133-78\\a = 55$

Hence,

55 adult tickets were sold on Friday.

4 0

2 years ago

Use a graphic organizer to compare and contrast similar and congruent figures

Anika [276]

Similar figures are figures of the same shape but different (or same) size.
Thus, they look the same, but one is bigger than the other by a scale factor.

Congruent figures are figures of the same shape AND same size.
They can be mapped onto each other using any type of transformation (besides dilations).

Similar figures can be dilated.

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3 years ago

4 over 11 divided by 3 over 8

olga_2 [115]

Answer:

.96 or .97

Step-by-step explanation:

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3 years ago

I need help with 7.5-3.2+4 to the power of 3 divided by 2

SOVA2 [1]

7.5 - 3.2 = 4.3 + 4 = 8.3^3 = 571.787 ÷ 2 = 285.8935 rounded to 285.9

8 0

3 years ago