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3 years ago

Combine the like terms to simplify the expression:

1 answer:

7 0

$5+7+15xy^2+9y^3+10x-13xy^2-3x-8y^3\\\\=(5+7)+(15xy^2-13xy^2)+(9y^3-8y^3)+(10x-3x)\\\\=12+2xy^2+y^3+7x\\\\=\boxed{y^3+2xy^2+7x+12}\leftarrow\boxed{A}$

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Ginny’s favorite cookie recipe requires 1 1/2 cups of sugar to make 24 cookies. How much sugar does Ginny need to make 36 of the

Delicious77 [7]

Ginny needs $2\frac{1}{4}$ cups of sugar to make 36 cookies.

Step-by-step explanation:

Given,

Sugar cups required for 24 cookies = $1\frac{1}{2}=\frac{3}{2}\ cups$

Ratio of sugar cups to cookies = $\frac{3}{2}:24$

Let,

x be the number of cups needed for 36 cookies.

Ratio of sugar cups to cookies = $x:36\\$

Using proportion;

Ratio of sugar cups to cookies :: Ratio of sugar cups to cookies

$\frac{3}{2}:24::x:36$

Product of mean = Product of extreme

$24*x=\frac{3}{2}*36\\24x=54$

Dividing both sides by 24

$\frac{24x}{24}=\frac{54}{24}\\x=\frac{9}{4}\\x=2\frac{1}{4}$

Ginny needs $2\frac{1}{4}$ cups of sugar to make 36 cookies.

Keywords: fraction, proportion

Learn more about fractions at:

#LearnwithBrainly

7 0

3 years ago

Tayla purchased a large box of comic books for $300. She gave 15 of the comic books to her brother and then sold the rest on an

weeeeeb [17]

Answer:

Number of comic books is 75.

Original price of each comic book is 4$.

Step-by-step explanation:

3 0

2 years ago

1 & 2) what are the surface areas? please explain.

mote1985 [20]

To find the surface area of a cylinder, use the formula SA = 2(pi)(radius^2) + 2(pi)(radius)(height).

So now, plug in what you know.

SA = 2(3.14)(5^2) + 2(3.14)(5)(9)
SA = (6.28)(25) + (6.28)(45)
SA = 157 + 282.6
SA = 439.6 square cm

439.6 square cm is your surface area

8 0

3 years ago

Read 2 more answers

ASAP HURRY!!!!!!!!!!!!!!!!!!!Complete the following statement. 3 ( 20 + 4 ) = a0

Lina20 [59]

Answer:

Step-by-step explanation:

3(20+4)=a0

60+12=a0

72=a0

im not quite sure what you want. I solved for a0. Plz tell me if this is correct. If its not, tell me what u need, then I will solve it for you.

5 0