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hram777 [196]
3 years ago
12

I need help I Barley have time help plz

Mathematics
2 answers:
Nata [24]3 years ago
6 0

Answer:

x = 35

Step-by-step explanation:

The angles of the large triangle add to 180

73+ 51+ (x+21) = 180

Combine like terms

145 +x = 180

Subtract 145 from each side

145+x-145= 180-145

x =35

zheka24 [161]3 years ago
6 0

Answer:

ITS C, 35 DEGREES

Step-by-step explanation:

Fast answer, but its 73 plus 51 plus 21 which is 145 then u subtract 145 from 180, leading to 35.

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jek_recluse [69]

The answer would be 362 miles

add the number of miles from day one and day two

4 0
2 years ago
At a country concert, the ratio of the number of boys to girls is 2:7. If there are 250 more girls than boys, how many boys are
allsm [11]
We can setup an equation for this.

Boys to Girls = 2:7
Boys =  x
Girls = 250+x
Setup the ratio 
 x:(250+x) = 2:7
x / (250+x) = 2/7
7x = 500+2x
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There are 100 boys at the concert
6 0
3 years ago
Read 2 more answers
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IrinaK [193]

Answer:

y=

x

​

−2

y=−

x

​

−2, x≥0

​

y=−

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​

Step-by-step explanation:

8 0
3 years ago
Solve the system of equations. \begin{aligned} & -5x+13y = -7 \\\\ & 5x+4y=24 \end{aligned} ​ −5x+13y=−7 5x+4y=24 ​ x= e
riadik2000 [5.3K]

Answer:

The solution of the given equations

x =4 , y = 1

Step-by-step explanation:

<u>Explanation</u>:-

<u>Step(l</u>):-

Given the system of equations -5x+13y = -7 ..(l)

                                                     5x+4y=24 ..(ll)

<u>Step(ll)</u>

Adding (l) and (ll) equations and cancelling '5x' terms we get

         13y+4y = -7 +24

               17y = 17

dividing '17' on both sides, we get

                y=1

<u>Step(lll):-</u>

Substitute y=1 in equation (l) , we get

-5x+13y = -7

-5x + 13(1) = -7

subtracting '13' on both sides, we get

-5x +13 -13= -7 -13

-5x = -20

Dividing '-5' on  both sides, we get

x = \frac{-20}{-5}

x = 4

<u>Conclusion</u>:-

The solution of the given equations

x =4 , y = 1

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3 years ago
What percent of our world is made of Hydrogen and Helium?
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Hydrogen is around 0.000053% and Helium is around <span>0.000524%</span>
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