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Orlov [11]
3 years ago
12

PLEASE HELPTH ME (MODERATORS STOP I REPEAT STOP REMOVING MY QUESTIONS BRO)

Mathematics
1 answer:
kompoz [17]3 years ago
5 0

Answer:

X=75

Y=110

Step-by-step explanation:

A straight line is 180, so add the equations that make a line and set them equal to 180

x+20+x+10=180

Combine like terms

2x+30=180

Subtract 30 from both sides

2x=150

Divide by 2

X=75

Same for y

y+y-40=180

2y-40=180

Add 40 to both sides

2y=220

Divide by 2

Y=110

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Since there are 21 questions and one is extra credit, the fraction is 21/20. Divide it to get 1.05. In percent, this is 105%. Hope this helps!
6 0
3 years ago
What is the surface area of the triangular prism?
Bas_tet [7]

Answer:

135 ft^2.

Step-by-step explanation:

The total surface area

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4 0
3 years ago
Use the substitution method to solve.
lord [1]

Answer:

x = 7, y = 6

Step-by-step explanation:

solve for y for the first equation

2x + y = 20

-2x         -2x , eliminate 2x

y = 20-2x

now that we have found y, substitute the y in for the second equation

-5y = -6x + 12

-5(20-2x) = -6x + 12, we just changed y into 20-2x. remember that we are multiplying all of 20 - 2x by -5

-100+10x = -6x + 12, we multiplied everything from the parathesis  by -5

+100                 + 100, eliminate -100

10x = -6x + 112

+6x    +6x , eliminate 6x

16x = 112 , solve for x

x = 7

then y = 20 - 2x = 20 - 2*7 = 6

check:

2 * 7 + 6 = 20

20 = 20

-5 * 6 = -6 * 7 + 12

-30 = -42 + 12

-30 = -30

4 0
3 years ago
What is the exponential expression 24^1/3
guapka [62]

Answer:

2.884499

Step-by-step explanation:

3 0
2 years ago
Reggie spent 2/5 of his day at a day camp exploring nature. if he was at camp for 10 hours, how many hours did he spend explorin
creativ13 [48]
2/5 * 10 
= 20/5
= 4 hours
4 0
3 years ago
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