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Varvara68 [4.7K]
4 years ago
5

Solve the equation 42=7r r=​

Mathematics
2 answers:
Juli2301 [7.4K]4 years ago
8 0

Answer: r=6

Step-by-step explanation:

Because if 42 equals 7 times r you just have to divide 42 by 7.

GuDViN [60]4 years ago
4 0

Answer:

6

Step-by-step explanation:

42=7r

Switch sides

7r=42

Divide both sides by 7

\frac{7r}{7} =\frac{42}{7}

Simplify

r=6

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Which of the following expressions are equivalent to 3(4h + 2k) ?
nordsb [41]

Answer:

B, C, and D are all equivalent to 3(4h+2k)

Step-by-step explanation:

We use the distributive property to say 3(4h+2k)=12h+6k

"A" distributes to 12k+6h

"B" distributes to 12h+6k

"C" distributes to 6k+12h (associative property works)

"D" is already distributed to 12h+6k

So A is wrong, and B, C, and D are right

Hope this made sense!

3 0
3 years ago
Read 2 more answers
the speeders scccer team charged $12 to wash each car at a fundraiser car wash. the team collected a total of $672 by the end of
snow_lady [41]
All u have do do is add 12 ×56 and u will get 627 so they will wash 56 cars
4 0
3 years ago
Dan pays £714.73 a year on his car insurance
LenaWriter [7]

Answer:

The Current Insurance cost = $685.43

Step-by-step explanation:

Given that Dan pays £714.73 a year on his car insurance.

Reduced Percentage = 4.1%

so

Reduced Amount =  4.1% × 714.73

                             = [4.1 / 100] × [714.73]

                             = 0.041 × 714.73

                             = $29.30

The current cost can be calculated by subtracting the reduced amount of 29.30 from 714.73.

so

Current Insurance cost = 714.73 - 29.30

                                       = $685.43

Therefore, the Current Insurance cost = $685.43

5 0
3 years ago
A researcher wishes to determine whether there is a difference in the average age of middle school, high school, and college tea
MakcuM [25]

The correct statement that can be made about the means is a. There is not enough evidence to suggest that the means are different.

<h3>What is true about the means?</h3><h3 />

Given that α = 0.01, we can use an ANOVA analysis to determine the p-value of the means.

When we run the means through an ANOVA software, the p-value can be found to be 0.1142.

This figure is greater than α = 0.01.

This means that we do not have the evidence to reject the null hypothesis that the means are different.

Options for this question:

  • a. There is not enough evidence to suggest that the means are different.
  • b. The mean age of middle school teachers is different from the mean age of high school teachers.
  • c. The mean age of middle school teachers is different from the mean age of college teachers.
  • d. The mean age of high school teachers is different from the mean age of college teachers.

Find out more on the p-value at brainly.com/question/4621112

#SPJ1

7 0
2 years ago
26 eggs in a carton were broken. this was 5% of the total number of eggs in the carton. how many eggs were in the carton altoget
lesya692 [45]

Answer:

520 eggs

Step-by-step explanation:

5%*2 is 10%.

10%*10 is 100%,that is the full carton of eggs.

26*2*10 is 520.

There were 520 eggs in the carton altogether.

Hope this helps :)

8 0
3 years ago
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