3 years ago

Find the sum. Write your answer in simplest form. 3/7+ 2/3

Mathematics

1 answer:

frosja888 [35]3 years ago

8 0

3/7 + 2/3

3/7 x 3/3 = 9/21
2/3 x 7/7 = 14/21

9/21 + 14/21 = 23/21 = 1 2/21

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F(a) = 2a - 1 g(a) = 4a - 1 Find f(a) + g(a)

andrey2020 [161]

Answer:

$f(a)+g(a)=6a-2$

Step-by-step explanation:

So we have the two functions:

$f(a)=2a-1\text{ and } g(a)=4a-1$

And we want to find f(a) + g(a).

So, substitute:

$f(a)+g(a)$

This is the same as:

$=(2a-1)+(4a-1)$

Combine like terms:

$=(2a+4a)+(-1-1)$

Add or subtract:

$=6a-2$

And we're done!

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4 years ago

A total of 68 hikers went on a trip to Blue Hill Mountain. If 32 of the hikers were boys, how many hikers were girls?

JulijaS [17]

Answer:

36 girls.

Step-by-step explanation:

68- 32 = 36

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3 years ago

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3 times a number is 10 less than the square of that number. Find the positive solution.

Alexus [3.1K]

Answer:x=5

Step-by-step explanation:

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4 years ago

100 POINTS

Sergio039 [100]

Answer:

y+y=22

2y=22

/2 /2

y=11

steve ran 11 miles.

Step-by-step explanation:

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4 years ago

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GUYS I NEED HELP ASAP!!! Help me solve ?

Shalnov [3]

Solution:

$$h=\frac{ A-2\pi r^2}{2\pi r }$

Given data:

$A=2\pi r^2+2\pi r h$

Let us determine what is h using given A.

$A=2\pi r^2+2\pi r h$

Subtract $2\pi r^2$ on both sides of the expression.

⇒ $A-2\pi r^2=2\pi r^2+2\pi r h-2\pi r^2$

⇒ $A-2\pi r^2=2\pi r^2-2\pi r^2+2\pi r h$

⇒ $A-2\pi r^2=2\pi r h$

Divide both sides of the expression by $2\pi r$ .

$$\frac{ A-2\pi r^2}{2\pi r }=\frac{2\pi rh }{2\pi r }$

$$\frac{ A-2\pi r^2}{2\pi r }=h$

$$h=\frac{ A-2\pi r^2}{2\pi r }$

Option C is the correct answer.

Hence $$h=\frac{ A-2\pi r^2}{2\pi r }$ .

8 0

4 years ago