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3 years ago

9

explain and illustrate what of means when you find a fraction of another number. what operation do you use when you find parts o

f parts

1 answer:

Keith_Richards [23]3 years ago

7 0

Its called equivalent fractions when you have a whole fraction

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20 is 1/10 (one tenth) of what number?

NARA [144]

Answer:

20 is 1/10 of 200.

Step-by-step explanation:

100*(1/10) = 10

200*(1/10) = 20

Since 100 times 1/10 is 10, all you have to do is double it. So now, 200 times 1/10 is 20.

:) Hope this helps!

4 0

2 years ago

Help me pleaseee!!!!!

Oksi-84 [34.3K]

Answer:

$x \: is \: 3 \: \: when \: \: \: y \: is \: 18 \\ x \: is \: 4 \: \: when \: \: y \: is \: 24$

5 0

2 years ago

Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is μd =

swat32

Answer:

Test statistic, $t_{s} = -0.603$ (to 3 dp)

Step-by-step explanation:

Deviation, d = x -y

Sample mean for the deviation

$\bar{d} = \frac{\sum x-y}{n}$

$\bar{d} = \frac{(28-6) + (31-27)+(20-26)+(25-25)+(28-29)+(27-32)+(33-33)+(35-34)}{8} \\\bar{d} = -0.625$

Standard deviation: $SD = \sqrt{\frac{\sum d^{2} - n \bar{d}^2}{n-1} }$

$\sum d^{2} = (28-26)^2 + (31-27)^2 +(20-26)^2 +(25-25)^2 +(28-29)^2 +(27-32)^2 +(33-33)^2 +(35-34)^2\\\sum d^{2} = 63$

$SD = \sqrt{\frac{63 - 8 * (-0.625)^2}{8-1} }$

SD =2.93

Under the null hypothesis, the formula for the test statistics will be given by:

$t_{s} = \frac{ \bar{d}}{s_{d}/\sqrt{n} } \\t_{s} = \frac{- 0.625}{2.93/\sqrt{8} }$

$t_{s} = -0.6033$

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3 years ago

The city of Hampton received money for improvements of the towns park. the park Committee put a random sample of 75 presidents f

Natasha2012 [34]

Answer:about a third of the residents prefer a park improvement of more trees

Step-by-step explanation:only 27 out of 75 would make it a third

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2 years ago

PLEASE HELP, ANSWER BOTH OR CHOOSE ON TO ANSWER

katen-ka-za [31]

Answer:

d) angle 6 is alternate interior angle to angle 3

e) angle 2 is alternate exterior angle to angle 7

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3 years ago