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3 years ago

5. Solve y = ab - x for b.

Mathematics

2 answers:

ivanzaharov [21]3 years ago

7 0

Here is your answer ⬇️

Helen [10]3 years ago

7 0

Answer:

(y+x)/a=b

or b=(y+x)/a

Step-by-step explanation:

First add both sides by x:

y+x=ab

Now divide a on both sides:

(y+x)/a=b

Hope this helps!

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A sector with an area of 30(pi) cm^2 has a radius of 10 cm.

Karolina [17]

Answer:

108°

Step-by-step explanation:

The area of a sector is given by the formula ...

A = (1/2)r²θ . . . . . where θ is in radians

Solving for θ, we find ...

θ = 2A/r²

For your given sector, the central angle is ...

θ = 2(30π cm²)/(10 cm)² = 0.6π . . . . radians

π radians is 180°, so the central angle in degrees is ...

θ = (0.6)(180°) = 108°

The central angle measure of the sector is 108°.

3 0

3 years ago

1. Reduce: 21 = 21 Reduce: 28

Hoochie [10]

Answer:

3/4

Step-by-step explanation:

21/28=3/4

3 0

3 years ago

Carl and Bob can demolish a building in 6 days, Anne and Bob can do it in 3, Anne and Carl in 5. How many days does it take all

nata0808 [166]

Answer:

59/20 days or 2.95 days

Step-by-step explanation:

Let Carl do the job in c days, Anne- in a, and Bob in b days

Then the portion of job they can do is 1/c, 1/a and 1/b

As per given we have below equations:

1/c + 1/b= 1/6
1/a + 1/b = 1/3
1/a + 1/c = 1/5

Sum of all 3 equations gives us:

2(1/a + 1/b + 1/c) = 1/6 + 1/3 + 1/5
2(1/a + 1/b + 1/c) = 5/30 + 10/30 + 6/30
2(1/a + 1/b + 1/c) = 21/30
2(1/a + 1/b + 1/c) = 7/10
1/a + 1/b + 1/c = 7/20

It means all three together can complete 7/20 of the job in one day

The rest of the job is done by Anne and Bob:

1 - 7/20 = 13/20

As Anne and Bob can do 1/3 of the job in one day, they need time to complete the rest:

13/20:1/3 = 39/20

Add 1 day to this to find overall time:

1 + 39 /20 = 59/20 days or 2.95 days

4 0

3 years ago

Sharon's Floral Shop needs to mail 959 checks to the bank. If they can put 3 checks in each envelope, how many checks will be in

miskamm [114]

Answer:

2 checks in the final envelope

Step-by-step explanation:

359 divided by three is 319,6

319 x 3 + 357

359 - 357 = 2

I hope this was helpful!

6 0

2 years ago

Read 2 more answers

Write a multiplication problem in which the product is between 0.05 and 0.75

Sergio039 [100]

1 multiplied by 0.50 or multiplied by any number between .05 and 0.75

4 0

3 years ago