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shepuryov [24]
3 years ago
5

Solving Multi-step3x-6x+7=-2​

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
4 0

Answer:

x=3

Step-by-step explanation:

3x-6x+7=-2

subtract 7 from both sides

3x-6x=-9

-3x=-9

3x=9

x=3

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There are 30 kilograms of 10 percent apple juice how much more aplle juice does it need to get to 25 percent?
egoroff_w [7]

Answer:

45 kg of apple juice

Step-by-step explanation:

Divide 25% by 10%

The answer you get multiply it by 30

Take the answer you get subtract the 30 kg

7 0
2 years ago
A manufacturer is running an experiment using the standard (control) infant formula, and two new formulas, A and B. The goal is
bulgar [2K]

Answer:

A.

H0: the mean IGA score is the same for all three formulas.


Ha: the mean IGA score is not the same for all three formulas.

The Group of answer choices are as below:

A.

H0: the mean IGA score is the same for all three formulas.


Ha: the mean IGA score is not the same for all three formulas.

B.

H0: the mean IGA score is the same for all three formulas.


Ha: the mean IGA score is higher for at least one of the two treatment groups than the control group

C.

H0: the mean IGA score is the same for all three formulas.


Ha: the mean IGA score is higher for both treatment groups A and B than the control group.

D. No answer text provided.

Explanation:

Given that a manufacturer is running an experiment using the standard (control) infant formula, and two new formulas, A and B to boost the immune system in infants.

The variable that is measured is Total IGA (in mg per dl) score.

We have to state the hypotheses for one-way ANOVA F test to test if the mean IGA score is the same for all three formulas.

In null hypothesis H0, the mean of all groups are equal and in alternative hypothesis, Ha, the mean of the groups are not the same.

Therefore, the hypothesis tested by the one-way ANOVA F test are:

H0: the mean IGA score is the same for all three formulas.

Ha: the mean IGA score is not the same for all three formulas.

5 0
3 years ago
Maria bikes 15 miles per hour and starts at 10 miles. Glen bikes 20 miles per hour and starts at 0 mile. At what time and distan
Ilya [14]
10/(20-15)=2 hours
20*2=40 miles
15*2+10=40 miles
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6 0
3 years ago
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Lubov Fominskaja [6]

Answer:

2700

Step-by-step explanation:

7 0
3 years ago
PLEASE HELP!!!! 13 points!!
IRINA_888 [86]
The answer is A 18 inches
7 0
3 years ago
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