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ElenaW [278]
3 years ago
10

Rational number word problems

Mathematics
1 answer:
Temka [501]3 years ago
3 0

Answer:

1583.90

Step-by-step explanation:

Khan academy

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A 8.5<br> B 8.1<br> C 12.5<br> D 12.9
elena55 [62]
Cosine again. Yay.

Put 36 into a fancy calculator with one of those cos() things. You get about 0.81. 

So that's the ratio between x and 10.

So basically x/10 = 0.81, or 0.81 * 10 = x.

8.1 = x
4 0
3 years ago
What is the order from least to greatest? <br> -3, 1 1⁄4, -1 3⁄4, 1⁄10
Marianna [84]

Answer:

11/4 1/10/3/4 -/-3

Step-by-step explanation:

3 0
3 years ago
1/7-3(3/7 n - 2/7) pleaseeee
trasher [3.6K]

Answer:

1- 9n/7

Step-by-step explanation:

I hope i helped! :)

8 0
3 years ago
By what number should-15/56 be divided to get -5/6<br><br>pls pls pls pls I need your help ​
mr_godi [17]

Answer:

The desired divisor is n = 21

Step-by-step explanation:

Let that number be n.  Then:

-15/56        -5

---------- = ---------

     n            6

Through cross-multiplication we get:

(-15/56)*6 = -5n, which reduces to:

(-15)(7) = -5n, or 3(7) = n

The desired divisor is n = 21

6 0
2 years ago
Bargain Town has 30% off all dresses. Find the sale price of a dress that regularly sells for $98
baherus [9]
You want to buy something that costs $98, and it's on sale for 30% off. What is the item's sale price?
First, convert the 30% to a real mathematical number. For percents, this is always done by dividing the 30% by 100%, or 30% / 100% = 0.300.

Second, find out what 30% of $98 is. This is the amount of the sale discount. This is always found by mulitplying 0.300 by the item's cost $98, like this:

0.300 x $98 = $29.40.
So for this sale, you'll save $29.40 on this item.

This means, the cost of the item to you is

$98 - $29.40 = $68.60.
3 0
3 years ago
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