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SOVA2 [1]
3 years ago
9

Ari and his 3 brothers want to take a school trip to Washington, D.C. They have $320 saved. Each of them will save $18 a week un

til they have at least $647 to pay for the trip. How much money will they save after 4 weeks? Will they have enough money to pay for the trip?
Mathematics
1 answer:
cupoosta [38]3 years ago
8 0

Answer:

$392.  No they don't have enough money to pay for the trip.

They need $255 more dollars, which would take 14 weeks and 2 days.

Step-by-step explanation:

18 x 4 = 72

320 + 72 = 392

647 - 392 = 255

255/18 = 14.2

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Answer:

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Step-by-step explanation:

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5x14=70

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3 years ago
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Samuel can type nearly 40 words per minute. Use this information to find the number of hours it would take him to type 3.2 × 105
Oliga [24]

The hours it would take to type 3.2 x 10^5 words is 1.33 x 10^2  hours.

<h3>How many hours would it take to type 3.2 x 10^5 words?</h3>

Standard form is used in expressing large numbers in smaller numbers. It is used to transform large numbers into smaller number.

In order to write a number in standard form, the number is written as a decimal number, between 1 and 10 and multiplied by a power of 10.

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The first step is to determine how many words he can type in 1 hour : 40 x 60 = 2400 words = 2.4 x 10³

The second step is to divide 3.2 x 10^5 words by 2.4 x 10³

3.2 x 10^5 ÷ 2.4 x 10³ = 1.33 x 10^(5 - 3)

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To learn more about standard form, please check: brainly.com/question/25334755

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3 0
2 years ago
Hello, this is my last attempt to get it right so if you can please help me​
irga5000 [103]

Answer:

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x+115°=6x° [ being vertically opposite angle]

or, 115=6x - x

or, 115=5x

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1.8

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0.2 times 5 is 1.8

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3 years ago
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