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Setler79 [48]
3 years ago
9

2/3 (x + 7) = 10 A) 22 B) 8 C)- 1 3 D 41 3 help me quick plz

Mathematics
1 answer:
otez555 [7]3 years ago
4 0

Answer:

D

Step-by-step explanation:

D BECAUSE IT IS D

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Suppose that an object is dropped from a height of
Kamila [148]
Make hours to seconds to match meters
19.6*3600=70560 seconds
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8 0
3 years ago
Tyler is laying tile on his rectangular kitchen floor. The dimensions of the floor are 16 1/2 feet by 15 feet. If he is using sq
blondinia [14]
First, find the area for the kitchen floor: 16.5*15=247.5 squared feet
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Also you can do it in this another way:
First, divide length of the kitchen floor between the length of one tile: 16.5/0.5=33
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8 0
3 years ago
The amount of water in a barrel decreased is 9 5/8 pints in 7 weeks
gizmo_the_mogwai [7]

Answer:

1 3/8 in one week

Step-by-step explanation:

3 0
3 years ago
The average expenditure on Valentine's Day was expected to be $100.89 (USA Today, February 13, 2006). Do male and female consume
AfilCa [17]

Answer:

Yes. The male and female consumers differ in the amounts they spend.

Step-by-step explanation:

We can express the null and alternative hypothesis as:

H_0: \mu_m=\mu_w\\\\H_1:  \mu_m\neq\mu_w

It is assumed a significance level of 0.05.

The standard deviation of the difference of means is calculated as:

s=\sqrt{\frac{s_m^2}{n_m} +\frac{s_w^2}{n_w} } =\sqrt{\frac{35^2}{40} +\frac{20^2}{30} } =\sqrt{30.625+13.333} =\sqrt{43.958} =6.63

The test statistic is

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The degrees of freedom are:

df=n_1+n_2-2=40+30-2=68

The P-value for t=10.11 is P=0, so it is smaller than the significance level. The null hypothesis is rejected.

We can conclude that male and female consumers differ in the amounts they spend.

5 0
3 years ago
1821.5/0.7 ... can someone please explain and answer this? Thank you SO much!!
S_A_V [24]
So you cant have a decimal in your divisor which means the problem sill become 18215/7 if that helps
8 0
3 years ago
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