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Effectus [21]
3 years ago
12

Explain how knowing 1+7 helps you find the sum for 7+1

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
8 0
Knowing 1 + 7 will help you find 7 + 1 because of what's called the additive property. This means that when you're adding any numbers together, the order does not matter and the sum will be the same.

1 + 7 = 7 + 1

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I have 4 times as much money as my brother has. our total is $55.how much does each of us have?
babymother [125]

Answer:

You have 44$, your brother has 11$.

Step-by-step explanation:

Let x be the amount of money your brother has.

Since you have four times the amount of money your brother has, we can call the amount of money you have 4x.

x+4x=55,\\5x=55,\\x=\boxed{\$11}

Thus, you have:

4(11)=\boxed{\$44}

5 0
2 years ago
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cupoosta [38]

Answer:

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Step-by-step explanation:

7 0
3 years ago
an iron cube measures 10cm by 10cm by10cm. what is its volume? if the same iron cube weights 7.9 kg, what is its density in g/cm
7nadin3 [17]
Is there an image you can attach?
7 0
3 years ago
Let f (x)=-3x+ determine f (-5)
loris [4]
F(x)=-3x
f(-5)=-3* (-5)
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^_^


6 0
3 years ago
Using the information given, calculate a grade to the nearest whole percent. The "rise" is 525 feet. If the scale on the map sho
melamori03 [73]
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3 years ago
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