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2 years ago

10

A box was 3/4 full.the box fell on the floor. 30 marbles fell out. this was 20% of the marbles that were in the box. how many ma

rbles are in a full box

1 answer:

andrezito [222]2 years ago

5 0

Answer:

150

Step-by-step explanation:

all i did was multiply 20% by 50 if it wasnt that i went up 50 if one of them gave me 30 i would know i had the right one.

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Find the surface area of the figure below. Round to the nearest tenth if necessary.

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Answer:

173.4 cm^2

Step-by-step explanation:

Surface area of the cone=pi*r*l+pi*r^2=pi*(4)*(9.8+4)=173.4 cm^2

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3 years ago

A recipe calls for 125 cups of sugar. If jasmine wants to make 13 of the recipe, how many cups of sugar will she need?

iragen [17]

Answer: 1625

Step-by-step explanation: So if you want to make 13 of one recipe it said that in 1 recipe there's 125 cups of sugar so you need to multiply 123 by 13 so do this 125 x 13 = 1625 and then there, you have your answer 1,625 cups of sugar for 13 things of the recipe.

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3 years ago

Which ordered pair (a,b) is a solution to the given system of linear equations.

egoroff_w [7]

Answer:

A. (-13,-3)

Step-by-step explanation:

Solve the system of two equations:

$\left\{\begin{array}{l}-2a+3b=14\\a-4b=3\end{array}\right.$

From the second equation:

$a=3+4b$

Substitute it into the first equation:

$-2(3+4b)+3b=14\\ \\-6-8b+3b=14\\ \\-8b+3b=14+6\\ \\-5b=20\\ \\5b=-20\\ \\b=-4$

So,

$a=3+4b=3+4\cdot (-4)=3-16=-13$

The solution is (-13,-4)

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3 years ago

Read 2 more answers

Explan how you would graph the line containing a slope<br> of-15 mat goes through the point (1-4).

blsea [12.9K]

Answer:

I wish I knew this maybe use the brainy scanner it could help you or google.

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3 years ago