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Maru [420]
3 years ago
8

ariel is saving money for a new computer that costs $650. she has $150, which she puts into an account. then she adds $25 each w

eek. How many weeks will it take before she can buy the computer?
Mathematics
1 answer:
Oksanka [162]3 years ago
5 0
20 weeks

The initial equation is 25x+150=650. Since she already has 150, we can subtract that from the total to get 500. We now have that 25x=500. Divide by 25 on both sides to get 20 weeks

:)
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I understood the whole problem but why they add 5 under square root?<br>please help me
mash [69]
I don't understand.. but I think that I know why.. just give me a little more details about the question but here's my guess.:

It may be square root like the answer may be squared in order to answer a rectangular prism..

Or, it may be a power..

Sorry, I don't know if I was helping, but this is the best I could do b/c I don't know a lot about the problem
6 0
2 years ago
Island A is 150 miles from Island B. A ship captain travels 310 miles from Island A and then finds that he is off course and 200
wolverine [178]

Answer:

156.37°

Step-by-step explanation:

We solve this above question, using Cosine rule which is given as:

Cos C = a² + b² - c²/2ab

Let the Angle be represented as: x

Cos x = 310² + 200² - 150²/2 × 310 × 200

x = arc cos [ 310² + 200² - 150²/2 × 310 × 200]

x = 23.63°

The angle, in degrees, that he must turn through to head straight for Island B is given as:

180° - 23.63°

= 156.37°

4 0
2 years ago
What is the ones digit of a number if its cube ends in 7
Ostrovityanka [42]

Well, I have never seen a question posed this way, but let's check it out by trial and error.

1^3 = 3

2^3 = 8

3^3 = 27 Hey! There's one. And the ones digit ends in 3.

Let's try another number that ends in 3 and see if it works as well.

13^3 = 2197 Wow. It works again. I never noticed this before, so you taught me something new.

I will test one more.

33^3 = 35937 Bingo. I think we have a winner.

3 0
2 years ago
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pav-90 [236]
The rope would be 3 yards long because every 3 feet is equal to 1 yard
7 0
3 years ago
Read 2 more answers
Please answer this correctly
My name is Ann [436]

Answer:

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Step-by-step explanation:

5 0
3 years ago
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