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Stells [14]
3 years ago
9

What is the value of B after the equation A=3/7(B-25)

Mathematics
1 answer:
GenaCL600 [577]3 years ago
7 0
If your equation is A = 3(B-25)/7, then we can solve for B by isolating B on one side. We can do this by the following...

First, multiply both sides by 7
7A = 3(B-25)

Next, divide both sides by 3.
7A/3 = B - 25

Finally, add 25 to both sides.
7A/3 + 25 = B

Therefore, B = 25 + 7A/3
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Divide 4 2/3 & 3 1/3. Simplify the answer and write it as a mixed number.
Leto [7]

Answer:

4 2/3 ÷ 3 1/3= 1 2/5

Step-by-step explanation:

First, you turn the mixed terms into an improper fraction like this

4 2/3 → 14/3 because when you multiply 4 times 3 equaling 12 then having 2 then adding that you get 14/3.

3 1/3 → 10/3 because when you multiply 3*3=9 then having 1 and adding that you get 10/3.

Then, you do KCF which stands for <u>Keep Change Flip</u> so for this you would do: 14/3 ÷ 10/3 → 14/3 × 3/10

14 × 3 = 42 and 3 × 10= 30

Now being 42/30 this is considered an improper fraction in which you have to transform it into a mixed number like this:

(For this you need to find the greatest common factor)

42/30 →  42 and 30 greatest common factor is 6 because they are divisible and factor of 6.

Now you divide both the denominator and the numerator y 6 like this:

42 ÷ 6= 7

30 ÷ 6= 5

Now we have 7/5, this is still an improper number so we see how many times 7 can go to 5 which is once. So we have 1 as whole number, now we put the reminder as the numenator of the mix fraction keeping 5 as being the denominator.

Overall, We have our answer 1 2/5

I hope this helps :D  

7 0
3 years ago
A student gets paid to deliver newspapers after school. She earns 25$ a day, plus an extra $0.75 for each newspaper she delivers
disa [49]
Earnings = 25d + 0.75n + 5c
6 0
2 years ago
How many solutions does this system of equations have?
azamat

Answer:

its one solution

Step-by-step explanation:

3 0
2 years ago
Solve the inequality for u.<br> .<br> Simplify your answer as much as possible.
Jet001 [13]

Answer:

u ≤ 4

Step-by-step explanation:

The given inequality

15 ≤ 39 - 6u

Subtract 39 from both sides, we get

15 - 39 ≤ 39 - 6u - 39

-24 ≤ -6u

Dividing both sides by -6, we get

4 ≥ u                      [Remember, when we divide by negative, the direction of    

                              the inequality changes]

Which is u ≤ 4.

Thank you.

3 0
3 years ago
Read 2 more answers
Need assistance solving for x​
Mashcka [7]

Please post the question ..i'll solve for x

5 0
2 years ago
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