3 years ago

Easy 5 If 3x + 5y = 15 and x – 2y = 10, what is the value of 2x +7y?

Mathematics

1 answer:

Dahasolnce [82]3 years ago

5 0

Answer:

Step-by-step explanation:

dont really understand why you answered your own question?

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STatiana [176]

Answer:

96 cm^3

Step-by-step explanation:

I hope this helped!

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2 years ago

Can some one please help me on my home work please i just need some one to show me how they solved this equation answers and wor

nignag [31]

Step-by-step explanation:

well first of all you have to expand the brackets. so 5(y+2)=4(x-3)

5y+10=4x-12

then you subtract 10

5y=4x-12-10=4x-22

then divide by 5 to get the value of y

y=(4x-22)/5

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2 years ago

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Llana [10]

Answer:

1) Brazil - 190,000,000

2) Egypt - 77,000,000

3) Australia - 20,000,000

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5) Luxembourg - 470,000

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2 years ago

PLEASE HELP IM STUCK

kkurt [141]

Answer:

y= 2x + 10

Step-by-step explanation:

The variable depends on the $2 so, the green box should be 2

4 0

1 year ago

A brand new filled can of chicken broth is 10 cm tall and has a radius of 10 cm. Mishka uses some of the broth to cook and now t

Maurinko [17]

we have chicken broth in cylindrical can.

we have given the height radius of cylindrical can.

h=10cm r=10 cm .

and she have 6cm broth height in the tin that means she had used 4 cm of height of broth .

now we need to find volume of two cylinder with h=10 cm and 6cm

and we need to find the difference between the volumes .

volume1= $\pi *r*h_{1} =\pi *(10)^2*10=3.14*1000=3140 cm^3$

volume 2= $\pi *(10)^2*6=1884cm^3$

volume used =volume 1-volume2=3140-1884=1256cm^3 is used

8 0

2 years ago

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