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nasty-shy [4]
4 years ago
9

Y is directly related to X, and Yis 81 when X is 27. The constant of variation is

Mathematics
1 answer:
Arisa [49]4 years ago
5 0

Answer:

3

Step-by-step explanation:

A direct variation is of the form

y = kx

We know x and y so we can find k

81 = k *27

Divide each side by 27

81/27 = 27k/27

3=k

The constant of variation is 3

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During a basketball game, chiyann made 15 baskets. She made three more baskets then twice number of baskets made by whitney. How
Nadusha1986 [10]

Answer:

Whitney made 6 baskets

Step-by-step explanation:

Let the number of baskets made by Whitney be x.

The 15 baskets made by

Chiyann is equal to 2 times plus 3 what Whitney made

Mathematically what she made would be 2x + 3

To get x, we equate this equation to 15

2x + 3 = 15

2x = 12

x = 12/2

x = 6 baskets

7 0
3 years ago
There are 4 consecutive integers that have a sum of 18. What is the value of the least<br> integer?
EleoNora [17]
3,4,5,6

The lowest integer is 3

4 0
2 years ago
On three 150-point geography tests, you earned grades of 88%, 94%, and 90%. The final test is worth 250 points. What percent do y
Semmy [17]
You must earn 243 points to have earned 93% of all possible points.

We first multiply each percentage on the previous tests by 150:

0.88*150 = 132
0.94*150 = 141
0.9*150 = 135

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150+150+150+250 = 700

93% of the 700 points would be 0.93(700) = 651 points.

Now we have 132+141+135+x (last test) = 651
408 + x = 651

Subtract 408 from both sides:
408+x-408 = 651-408
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7 0
3 years ago
Read 2 more answers
An online retailer charges $6.99 plus $0.55 per pound to ship electronics purchases.Write an equation to find how many pounds is
Helga [31]
11.94-6.99=4.95 4.95÷.55=9 9 pounds
4 0
3 years ago
Read 2 more answers
Write 5^4 in standard form
AfilCa [17]

Answer:

625

600+20+5

Step-by-step explanation:

<em>Parenthesis</em>

<em>Exponent</em>

<em>Multiply</em>

<em>Divide</em>

<em>Add</em>

<em>Subtract</em>

<em>From left to right.</em>

<em>Do exponent first.</em>

<em>5^4=5*5*5*5=625</em>

<em>Standard form of 5^4 is: ⇒  600+200+5</em>

<em>625 is the correct answer.</em>

<em>600+200+5 is the correct answer.</em>

4 0
3 years ago
Read 2 more answers
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