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3 years ago

What is the area of a circle with a diameter of 15.8 cm?

Mathematics

1 answer:

pochemuha3 years ago

5 0

Multiply 15.8 by 3.14 and u have ur awnser

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Ms. Carey wrote the equation: 3x-7-2/3 (9x-6) = 15 on the board. What is the solution to the equation? Show your work.

Vesnalui [34]

Answer:

x=−6

Step-by-step explanation:

<u>Step 1: Simplify both sides of the equation.</u>

3x−7-2/3(9x−6)=15

3x+−7+−6x+4=15(Distribute)

(3x+−6x)+(−7+4)=15(Combine Like Terms)

−3x+−3=15

−3x−3=15

<u>Step 2: Add 3 to both sides.</u>

−3x−3+3=15+3

−3x=18

<u>Step 3: Divide both sides by -3.</u>

−3x/−3=18/−3

x=−6

5 0

3 years ago

PLEASE HELP ME I WILL GIVE BRAINLIEST

Dmitry [639]

Answer:

1,4,5,7,9

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Milo cut his cake into 2 equal pieces. He ate 2pieces of cake for his birthday.

Sauron [17]

Answer:

$1$ $or \frac{2}{2}$

Step-by-step explanation:

<h2><u>We know that Milo cut his cake into 2 different pieces, so:</u></h2>

$\frac{x}{2}$

<h2><u>He then eats two pieces of the cake. so:</u></h2>

$2$ $pieces$ $of$ $cake$ $=$ $x$

$\frac{2}{2} = 1$

8 0

3 years ago

I need help please and thank you

andrew-mc [135]

Answer:

Area will be 2(lb + bh + hl)

So 2*(12*9 + 9*4 + 4*12)

384 sqft

3 0

3 years ago

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My brother is currently three times as old as me, but in five years, my brother

wolverine [178]

Answer: Your brother is 15 years old right now.

Step-by-step explanation:

Let be "m" your currently age and "b" your brother's currently age.

Knowing that right now he is three times (this indicates multiplication) as old as you, you can write the following equation:

$b=3m$

In five years your age will be:

$m+5$

And your brother's age will be:

$b+5$

Then, if in five years, your brother will be twice as old as you, you can set up the second equation:

$b+5=2(m+5)$

Then, the System of equations is:

$\left \{ {{b=3m} \atop {b+5=2(m+5)}} \right.$

Apply the Substitution method and substitute the first equation into the second one and solve for "m":

$3m+5=2(m+5)\\\\3m+5=2m+10\\\\m=10-5\\\\m=5$

Substitute the value of "m" into the first equation and evaluate in order to find "b":

$b=3(5)\\\\b=15$

4 0

3 years ago