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frosja888 [35]
3 years ago
11

Estimate how many times larger 7 x 1010 is than 13 x 108.

Mathematics
1 answer:
Lilit [14]3 years ago
6 0
7x1000 = 7070
13x108 =1404
7070/1404 =<span>5.03561253561
it is about 5%.</span>
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What is the value of the expression (−2)^4(−2)^-1?
Morgarella [4.7K]
(-2)^4=16
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Answer: -8
7 0
2 years ago
Maggie’s brother is three years younger than twice her age. The sum of their ages is 24. How old is maggie?
JulsSmile [24]

To solve this problem, we must set up a system of equations. In this case, let's let Maggie's age be represented by the variable m and her brother's age be represented by the variable b. We are told that the sum of their ages is 24, which gives us our first equation: m + b = 24. We can construct our next equation from the first sentence of given information: b = 2m - 3. This makes our system of equations:

m + b = 24

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To solve, we are going to substitute the value for b in terms of m given by the second equation into the first equation for the variable b.

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To simplify, we must first combine the variable terms on the left side of the equation using addition.

3m - 3 = 24

Next, we should add 3 to both sides of the equation to get the variable term alone on the left side of the equation.

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Finally, we should divide both sides by 3 in order to get the variable m alone.

m = 9

Therefore, Maggie is 9 years old (using the first equation and substituting in this value you can find that her brother is 15 years old).

Hope this helps!

8 0
3 years ago
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Geraldo recently saw a newspaper ad for a new version of his laptop. the projected price is $400.00, and the laptop will be out
Tanya [424]

The amount he had to pay if he have to purchase a laptop today that is the same value as the one he saw in the ad is $ 390.24.

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We have to find the amount he had to pay if he have to purchase a laptop today that is the same value as the one he saw in the ad.

Let the price he had to pay be x.

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x = 400*40/41 = $ 16000/41 = $ 390.24.

To learn more about amount, here:-

brainly.com/question/8082054

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5 0
1 year ago
What do a decimal number and a thumbtack have in common?
Maslowich
<span>They both have a point!

Hope I Helped You!!! :-)

Have A Good Day!!!</span>
8 0
3 years ago
Is this all correct?
expeople1 [14]
Yes it looks like it would be right
3 0
3 years ago
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