MATHEMATICS MIDDLE SCHOOL

Help me out please???? <3

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

100 / 5 = 20

Answer 2

Answer: The answer would be 20.

10^2/ 5^1
10^2= 100 & 5^1 = 5
100/5= 20

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Which ratio is equivalent to 33:11

PLZ HELP PLZ HURRY! Simplify. –12 + 9 – (–3) – 11

A.
–17

B.
–11

C.
7

D.
13

Answers

-12 + 9 - (-3) - 11

-12 + 9 + 3 - 11

Subtract/Add from left to right:

-3 + 3 - 11

0 - 11

-11

$= -12 + 9 - (-13) - 11 \n= -3 - (-3) - 11 \n = 0 - 11 \n = -11$

Jason can mow his parents' yard in 3 hr. His brother can mow itin 4 hr. How long would it take them, working together, to mow
the yard? (Assume two mowers are available.)

Answers

I would assume it would take 3.5 hours to mow the lawn together.

A plane flew a total of 2,220 miles. Its average speed was 555 miles per hour. How many hours did the plane fly?

Answers

Ok. I will put my explanation in the answer box because apparently it's not good enough in the comments.

2220 divided by 555 is 4.
We do this equation because we need to find out how many 555 miles go into 2220 miles. The answer is 4, which we need to convert to hours, so it is 4 hours.
1 hour is 555 miles
2 hours are 1110 miles.
3 hours are 1665 miles.
4 hours are 2220 miles which is what we need.

Final answer:

The plane flew a total of 2,220 miles at an average speed of 555 miles per hour. The duration of the flight can be determined by using the formula for time (t = d/v). In our case, the flight took 4 hours.

Explanation:

To calculate the duration of the flight, we can use the following formula for time (t), which is:

t = d/v, where d is the total distance traveled and v is the average speed.

Given our values: d = 2,220 miles and v = 555 miles per hour, plug these into our formula and solve for t (time in hours). So, our calculation becomes: t = 2,220 miles / 555 miles per hour.

The result of this calculation is t = 4hours. Therefore, it took the plane 4 hours to fly a total distance of 2,220 miles at an average speed of 555 miles per hour.

Learn more about Time Calculation here:

brainly.com/question/20416068

#SPJ2

15 is 30% of what number?

Answers

$15\ is\ 30\%\ of\ x\n\n30\%=(30)/(100)=(3)/(10)=0.3\n\n15\ is\ 0.3\ of\ x\n\ntherefore\n\n0.3x=15\Rightarrow x=15:0.3\n\n\boxed{x=50}\n\nother\ method:$

$\begin{array}{cccc}30\%&-&15&|divide\ both\ sides\ by\ 3\n\n10\%&-&5&|multiply\ both\ sides\ by\ 10\n\n100\%&-&50&-solution\end{array}$

kylie drank 35% of 400-mL container of water.Eugenia drank 45% of a 350-mL.Who drank more water?How do you know?I will have more questions I have a math packet due tomorrow and I don't know percents I listen but I just don't understand

Answers

In the question, there are two people with different percentage of drinking water from different quantities.
Taking the first case of Kylie we get that he drank 35% water of 400ml
Then
35% of 400 ml = (35/100) * 400 ml
   = (35 * 4) ml
   = 140 ml
So Kylie drank a total of 140 ml water.
Now taking the case of Eugenia we get that he drank 45% of 350 ml water.
Then
45% of 350 ml = (45/100) * 350
   = 1575/10 ml
   = 157.5 ml
So Eugenia drank 157.5 ml of water. Then we can conclude that Eugenia drank more water than Kylie.

Answer: Eugenia, 17.5

Step-by-step explanation:

What is another way to write the expression using the Commutative.(1 5/8 + 4 3/4) + 3 2/8

Answers

commutative property of addition is
a+(b+c)=(a+b)+c

so just move the partenthsees ()

(1 5/8+4 3/4)+3 2/8=1 5/8+(4 3/4+3 2/8)

$(1 (5)/(8)+4 (3)/(4))+3 (2)/(8) = \n \n( (13)/(8)+ ^(2))(19)/(4))+(26)/(8)= \n \n (13+38)/(8)+ (13)/(8)= \n \n (64)/(8)= \boxed{8}$

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