MATHEMATICS MIDDLE SCHOOL

If you start your homework at 4:00 and finish at 4:20 what is a fraction showing the time you spent on the clock

Answers

Answer 1

Answer: 20min/1hr, I believe.

Answer 2

Answer: 20/60 which can be simplified to 1/3

The value will be "a(-3a+11)".

The given expression is:

$4a- a* 3a + 7a$

By applying multiplication, we get

→ $4a - 3a^2+7a$

By applying addition, we get

→ $-3a^2+11a$

By taking "a" as common, we get

→ $a (-3a+11)$

Thus the answer above is right.

Learn more about simplification will be:

brainly.com/question/19201257

Tell the value of n 24 - n =18

Answers

24 - n = 18
−n+24−24=18−24
−n=−6
Divide.
−n/−1=−6/−1
n=6

$24-n=18 \n \n -n=18-24 \n\n -n=-6 \ /(-1) \n \n n=6$

Rewrite the expression without using grouping symbols. -6(8+12)

Answers

$-6(8+12)=-48-72$

$-6(8+12)=-6\cdot8+-6\cdot12=-48+(-72)=-48-72$

I hope I helped :D

Leslie is in charge of packing snacks for her class she has 30 cookies and 20 apples she wants to put the same number of apples in each pack what are the possible numbers of packs she can make how many items are in each bag

Answers

Answer:

Leslie can make 10 packs, each having 2 apples and 3 cookies.

Step-by-step explanation:

We have been given that Leslie is in charge of packing snacks for her class she has 30 cookies and 20 apples. She wants to put the same number of apples in each pack.

To solve our given problem, we will find greatest common factor of 30 and 20.

Factors of 20: 1, 2, 4, 5, 10, 20.

Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30.

We can see that 10 is the greatest common factor of 30 and 20, therefore, Leslie can make 10 packs.

$\text{Number of apples in each pack}=(20)/(10)=2$

$\text{Number of cookies in each pack}=(30)/(10)=3$

Therefore, there would be 2 apples and 3 cookies in each pack.

She can put 1 cookie and 1 apple in each bag. 20 packs

Express in scientific notation: 215,000,000 a.2.15x10^8 b.21.5x10^7 c. 215x10^6d.215x1,000,000 e.0.215x10^9

Answers

$2\underbrace{15\ 000\ 000}_(\leftarrow8)=2.15000000\cdot10^8=2.15\cdot10^8\n\n\nAnswer:A$

$scientific\ notation:\ a\cdot10^n\ and\ a\in < 1;\ 10);\ n\in\mathbb{Z}\n\nB.\ 21.5\cdot10^7\to21.5 > 10\n\nC.\ 215\cdot10^6\to215 > 10\n\nD.\ 215\cdot1,000,000\to215 > 10\ and\ no\ 10^n\n\nE.\ 0.215\cdot10^9\to0.215 < 1$

A gallon has a volume of 231 cubic inches. If a gallon of milk was sold im a perfectly cubical container, to the nearest tenth of an inch how high would the container be? A. 6 inches

B. 6.1 inches

C. 6.2 inches

D. 6.3 inches