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3 years ago

Find the area of a circle with a diameter of 3 inches

Mathematics

2 answers:

umka21 [38]3 years ago

5 0

The area of the circle with a diameter of 3 inches is 7.07 in2

Oksanka [162]3 years ago

5 0

The answer is 7.07 in square

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wolverine [178]

Answer:

Ivy is 6 years old and Rose is 12 years old.

Step-by-step explanation:

To solve this problem, two variables are necessary since we have two unknown variables: Ivy's age and Rose's age.

Ivy's age will be $x$

and Rose's age will be $y$

"Ivy is half as old as her sister":

$x=\frac{y}{2}$

this will be our fist equation.

"In six years, Ivy will be two-thirds as old as Rose"

in six years Ivy will have $x+6$ years, and Rose will have $y +6$ years, so for this sentence we have the equation:

$x+6=\frac{2}{3}(y+6)$

this will be our second equation.

Substituting the value of x from the first equation into the second, and solving for y(Rose):

$\frac{y}{2}+6=\frac{2}{3} (y+6)\\\frac{y+12}{2} =\frac{2}{3} (y+6)\\y+12=\frac{4}{3} (y+6)\\3(y+12)=4(y+6)\\3y+36=4y+24\\36-24=4y-3y\\12=y$

Rose is 12 years old.

and Ivy (using the fist equation):

$x=\frac{12}{2}=6$

Ivy is 6 years old.

6 0

3 years ago

What is the verbal expression for 15+r

exis [7]

Your answer is going to be fifteen plus r

5 0

3 years ago

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What is equivalent to 3squareroot of 8^x

inn [45]

Answer:

3 * 8^(x/2)

Step-by-step explanation:

The third answer choice is the correct one.

Here's how:

3squareroot of 8^x = 3√(8^x) = 3*(8^x)^(1/2) = 3 * 8^(x/2)

8 0

3 years ago

Please help me with these questions this is the main reason why my grade is down and I don’t get it please please if u know the

masya89 [10]

Answer:

what is this and give more info next time too

Step-by-step explanation:

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2 years ago

What mixed number represents thirty-eighths?

Anvisha [2.4K]

Answer:

............... 3 6/8

4 0

3 years ago

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