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frozen [14]
3 years ago
11

What is two expressions where the solution is 19

Mathematics
1 answer:
GuDViN [60]3 years ago
8 0
<span><span><u>Answer </u>
</span><span>10+9=19
75÷3=19


</span><span><u>Explanations </u>
</span><span>Expression is a mathematical statement that contain variables like a and b combined by operational signs. This sign can be ×,÷,+,-etc
A number like 19 has so many expression, for example we have;
10+9=19

57÷3=19
34-15=19
We can have as many expressions as possible. They are actually infinite. 
</span></span>
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Margo boils 500 L of water to make 80 g of the pasta is Margo boils 2500 mL of water how many grams of pasta can she make?
aalyn [17]
She boils 500 L of water and makes 80 grams, we are being asked to covert and solve for how many grams of pasta she will make if she boils 2500 mL.

The first think we need to do is convert 2500 mL to how many Liters.

2500 mL = ? how many liters.

2500 ml = 2.5 liters

Now, we need to set up a proportion to see how many grams we can make if we boiled 2.5 liters of water.

Set up a proportion.

500/80 = 2.5/x

First, we cross multiply.

500*x = 80*2.5
500x = 200

Now, divide each side by 500 to solve for x.

500x/500 = 200/500
x= 0.4

Final answer: Margo can make 0.4 grams of pasta if he boils 2500 mL of water. 


7 0
3 years ago
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You use 66 gallons of water on 20 plants in your garden. At that rate, how much water will it take to water 30 plants?
erma4kov [3.2K]
99 gallons it takes 3 1/3 gallons to water 1 plant then multiply 3 1/3*30
6 0
3 years ago
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Help please :(
MissTica

Answer:

D

Step-by-step explanation:

The change from x = 0 to x = 1 is -3

The change from x = 1 to x = 2 is -5

The average of -3 and -5 is \frac{-3-5}{2} = \frac{-8}{2}  = -4

The answer is D. -4

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Ira Lisetskai [31]

Answer:

Step-by-step explanation:

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7 0
3 years ago
It cost $0.25 to use a dryer at a laundromat for 15 minutes. The expression
konstantin123 [22]

\Large\boxed{\tt Answer:~2 ~dollars}

\tt Step-by-step~explanation:

See how many times 15 can go into 120.

\tt \frac{120}{15} =8

If 15 • 8 is 120, then the cost would have to multiply by 8.

\tt 0.25*8= 2

It costs $2.00 to use the dryer for 120 minutes.

We can also use the equation to help. We plug in 120 for m and solve.

\tt 0.25(20)=30\\30 \div 15 = 2

We still end up with the same result: $2.00 for 120 minutes.

4 0
3 years ago
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