4 years ago

Write the expression that represents twice the sum of x and 5

1 answer:

7 0

Answer:

2(x+5)

Step by Step explanation:
Since sum means the answer of an addition problem, that means it would be x+5. and since it is twice that, it would be 2*x+5, which we would then write as 2(x+5) so it could be easier to read and understand.

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A kilogram of seawater contains 1/40 kg of salt. How much salt is there in two buckets of seawater, which contain 500 liters of

never [62]

Two buckets of seawater contain $13\frac{28}{40}$ kg of salt.

Step-by-step explanation:

Amount of salt in 1 kg water = $\frac{1}{40}\ kg$

It is given that;

1 liter = $1\frac{12}{125} = \frac{137}{125}\ kg$

500 liters = $500*\frac{137}{125} = \frac{68500}{125}$

500 liters = 548 kilogram

As,

1 kg of seawater = $\frac{1}{40}\ kg$ of salt

548 kilograms = $\frac{1}{40}*548$

548 kilograms = $13\frac{28}{40}$ kilograms of salt

Two buckets of seawater contain $13\frac{28}{40}$ kg of salt.

Keywords: unit rate, multiplication

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3 years ago

If a line was drawn perpendicular to one whose equation is 4x+2y=11, then its slope would be which of

alexandr402 [8]

I believe the answer would be the 3rd one

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3 years ago

What is pythagoras triplets?

dedylja [7]

A pythagoras triplet is a set of three numbers ... not just any three numbers,
but a set where the (square of one of them) is the sum of the (squares of the
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If they're related in that way, then they can be the lengths of the sides of a
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If they're not, then they can't.

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3 years ago

Simplify 6(x + 3). 6x + 3 x + 18 6x + 18 6x + 9

Kisachek [45]

Answer:

the answer of this question is = 6x + 18

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3 years ago

Compute the perimeter of the figure given below. All angles are right angles.

Mashcka [7]

Answer:44

Step-by-step explanation: