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Vitek1552 [10]
3 years ago
9

If y varies inversely as x, and y=16 when x=4, find y when x=10

Mathematics
1 answer:
scoray [572]3 years ago
5 0

Answer:

40

Step-by-step explanation:

you have to multiply x by 4 to get y when x=4 and y=16. so if x=10, then you have to multiply what x is (10) by 4 because there is a common ratio.

hope this helps!! please give brainliest!!!!!!

You might be interested in
Company Price per Share Earnings per Share
Dafna1 [17]
Company Price per Share Earnings per Share
Leptano Bearings & Joints $16.39 $2.19
Hatan Bearings $54.55 $8.94
Tours Marbles and Bearings Inc. $11.22 $1.02
Grenada Precision Bearings $12.25 $1.25
Given the current price and earnings per share, evaluate which of the companies below would have earned the most money for someone investing $10,000 in each.
A.
Leptano Bearings & Joints
B.
Hatan Bearings
C.
Tours Marbles and Bearings Inc.
D.
Grenada Precision Bearings
Answer is c
4 0
4 years ago
0.75(2 + 6 x 4 - 2 x 7 - 2) A. 1 B. 5.25 C. 8.5 D. 22.5
Alekssandra [29.7K]

Hey there!

ORIGINAL EQUATION:
0.75(2 + 6 x 4 - 2 × 7 - 2)

WORKING WITHIN the PARENTHESES:
2 + 6 x 4 - 2 × 7 - 2

= 2 + 24 - 2 × 7 - 2

= 26 - 2 × 7 - 2

= 26 - 14 - 2

= 12 - 2

= 10


NEW EQUATION:

0.75(10)


SIMPLIFY IT!
7.50 ≈ 7.5


Therefore, your answer should be: 7.5



~Amphitrite1040:)

5 0
3 years ago
Shenhed finished his math assament in 3/8
Elenna [48]
Math assignment = 3/8 hours
History assignment = 1/4 hours

We can not compare this as both fractions do not have alike denominators.

We can fix this problem easily by turning 3/8 and 1/4 into alike denominator fractions.

We can turn 1/4 into 2/8 as it is equivalent fractions.

1 x 2 = 2
4 x 2 = 8

(Whatever you do to the denominator, you have to do the same to the numerator)

Once we get this, we can see that Shen spent 2/8 hours on his homework while he spent 3/8 hours on his math assignment.

3/8 - 2/8 = 1/8

1/8 = 0.125

Shen spent 1/8 of an hour (or 0.125 of an hour) more on his math assignment than his history assignment.
4 0
2 years ago
Sandra buys 12 containers of yogurt. She can choose between cherry and peach yogurt. Let x
Finger [1]
12 I think is the answer
6 0
3 years ago
A random sample of 8888 eighth grade​ students' scores on a national mathematics assessment test has a mean score of 278278. Thi
crimeas [40]

Answer:

Step-by-step explanation:

Given that sample size n = 88, for eight grade students

scores on a national mathematics assessment test has a mean score of 278. This test result prompts a state school administrator to declare that

x bar >270

H_0: xbar = 270\\H_a: x bar >270

(One tailed test at 15% sign level)

Since sigma, population sd is known and sample size is large we use z test

Std error = \frac{\sigma}{\sqrt{n} } =4.051

Mean difference 278-270=8

Z statistic = \frac{8}{4.051} =1.975

p value = 0.024

Since p <alpha, the administrator's declaration is correct.

3 0
3 years ago
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