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3 years ago

What is the greatest common factor of 30b^2, 80b^2, and 20b^2

Mathematics

1 answer:

victus00 [196]3 years ago

3 0

Answer:

10b²

Step-by-step explanation:

First, let's look at the coefficients. The greatest common factor of all three numbers 30, 80, and 20, is 10. Now, let's look at the variables. All three terms are divisible by b² (with no remainder). We can combine 10 and b² so they become one term, and that is the GCF. 10b².

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The area of the rectangle shown is 66m^2

tekilochka [14]

Answer:

143cm

Step-by-step explanation:

Area=2(l+b)

Substitute the values for the variables.

66=2(l+22/5)

66=2xl+2x22

66=2l+44

Cross multiply

66x5=2l+44

330=2l+44

Collect like terms

-2l = 44-330

-2l = -286

-2l = -286

-2 -2

l=143

The missing length is 143m.

3 0

2 years ago

the ages of two friends Sunaina and Tanish are differ by 2 years sunaina's father is twice as old as Sunaina and Tanisha is twic

nikklg [1K]

Let S represent Sunaina's age.

Let T represent Tanish's age.

So 2S - T/2 = 40, 4S - T = 80.

Either S - T = 2 or T - S = 2. Let's try both cases.

Either 3S = 78 or 3S = 82.

Since 82 is not a multiple of 3, S = 26.

So Sunaina is 26 years old and Tanish is 24 years old.

4 0

3 years ago

Half of the students in Max's class volunteer at the local community center.Fifteen students do not volunteer.If there are 12 bo

yulyashka [42]

18 girls
Half of the students volunteer
15 don't -- so the other half must be 15 as well making there 30 students in the class.
If 12 are boys, then 30(students in class) - 12 (boys) = 18 girls

7 0

3 years ago

What is 30 percent of 25

sweet [91]

7.5 is 30 percent of 25 because

25 divided by 10 is 2.5 times 3 is 7.5

6 0

3 years ago

3) A cube has width of 6 cm. What is the volume of the cube?

solong [7]

Answer:

Step-by-step explanation:

Idk I need your help