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3 years ago

PLEASE HELP ASAP!!!!!

Mathematics

1 answer:

Nata [24]3 years ago

7 0

Answer:

$\huge\boxed{\sf x = 20}$

Step-by-step explanation:

=> Since it is an equilateral (Having all angles and all sides equal) triangle, so every angles will be equal to the other.

=> The sum of the measures of interior angles of triangle add up to 180 degrees.

So,

3x + 3x + 3x = 180

9x = 180

Divide both sides by 9

x = 20

$\rule[225]{225}{2}$

Hope this helped!

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3 years ago

Chad is getting balloons for his grandmothers birthday party. He wants each balloon string to be 6 feet long. At The party store

finlep [7]

Answer: 258 yards

Step-by-step explanation:

Since Chad wants each balloon string to be 6 feet long, and Chad wants to get 43 balloons, the number of yards of string that he will need will be calculated by multiplying 43 by 6. This will be:

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3 years ago

Urgent help needed fast

Katena32 [7]

Answer:

Below

Step-by-step explanation:

You can use this formula to find the sum of an arithmetic series

Sn = n / 2 (a1 + an)

You need to find the number of terms in each series before using the formula

Tn = a + (n - 1) d

a) 53 = 5 + (n - 1) 3

n = 17

Sn = 17 / 2 (5 + 53)

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Sn = 14 / 2 (7 + 98)

= 735

c) -102 = 8 + (n - 1) -5

n = 23

Sn = 23 / 2 (8 + (-102))

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3 years ago

2x + 3y = 7 3x + 2y = 8

Kipish [7]

Answer:

$\boxed{\sf \ \ \ x=2, \ \ y =1 \ \ \ }$

Step-by-step explanation:

Hello,

Pls post the full question next time so that we can make sure what is expected.

I assume that you want to solve for (x,y)

(1) 2x + 3y = 7

(2) 3x + 2y = 8

2*(2)-3*(1) gives

2*3x + 2*2y - 3*2x - 3*3y = 2*8 - 3*7 = 16 - 21 = -5

6x - 6x + 4y -9y = -5

-5y=-5

y = 1

and we can replace in (1)

2x + 3*1 = 7

2x = 7 - 3 = 4

x = 2

hope this helps

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3 years ago

Simpiflying 4 5/8 and 3 3/8 subtraction<br><br>

denis-greek [22]

Answer:

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Step-by-step explanation:

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3 years ago

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