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pashok25 [27]
2 years ago
8

X Y. Determine whether y varies directly with x If so find the constant vartion k and write the equation

Mathematics
1 answer:
kirza4 [7]2 years ago
6 0

Answer:

6.4 = k*4

k = 6.4 / 4

k = 1.60

11.2 = k * 7

k = 11.2 / 7

k = 1.60

16 = k * 10

k = 16/10

k = 1.60

20.8 = k * 13

k = 20.8/13

k = 1.60

Step-by-step explanation:

hope this helps! so sorry if it doesn't try not to stress over school please<3

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A tile factory earns money by charging a flat fee for delivery and a sales price of $0.25 per tile. One customer paid a total of
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The answer is 1.C 2.$500

3 0
3 years ago
Simplify by dividing negative three over eight divided by five over nine.
goblinko [34]

Answer:

\frac{-27}{40}

Step-by-step explanation:

First we need to write in correct form :

\frac{-3}{8}:\frac{5}{9}

We know how to divide fractions. If we can divide numerator by numerator, denominator by denominator, we just do it. In this example we can not do that.

So, we rewrite first fraction and multiply by reciprocal second ( numerator and denominator change place)

\frac{-3}{8} *\frac{9}{5}

Now, multiply numerator by numerator, denominator by denominator :

\frac{-27}{40}

8 0
3 years ago
Read 2 more answers
A large manufacturing firm tests job applicants who recently graduated from college. The test scores are normally distributed wi
anzhelika [568]

Answer:

lowest score a college graduate must earn to qualify for a responsible position is 578

correct option is D. 578

Step-by-step explanation:

given data

mean = 500

standard deviation = 50

distribution = 6 %

to find out

What is the lowest score a college graduate must earn to qualify for a responsible position

solution

we know that here Probability P that is express as

P ( Z > x ) = 100% - 6%      .....................1

so with the help of normal table

here value of Z is =  1.55 from cumulative probability 0.94

so by z score formula here x will be

x = z × standard deviation +  mean    ................2

so put here value

x = 1.55 × 50 + 500

x = 577.7387 ~ 578

so lowest score a college graduate must earn to qualify for a responsible position is 578

8 0
3 years ago
3. The weekly sales of a magazine increased
KiRa [710]

Answer:

b. 20%

Step-by-step explanation:

20% is the am mount of increase

3 0
3 years ago
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Solve for x<br> X<br> 170<br> X=
Vinil7 [7]

Answer:

73

Step-by-step explanation:

90-17=x

x=73

7 0
2 years ago
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