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Free_Kalibri [48]
3 years ago
5

Mr brown shares with the class that 70%of the students got a A on the English vocabulary quiz if mr brown has 100 students creat

e a model
Mathematics
1 answer:
Harrizon [31]3 years ago
6 0
70% of 100 is 70 students. Unfortunately I can not make a model for you but here's an idea: Draw a large circle. Next, draw a line halfway down the circle, and halfwar down draw another line to the right, this making it look like three fourths. Then, color the larger space in one color and the other smaller space that looks like a small slice of pie in another color. On the larger piece write "70% who got an A" and on the smaller write "30% who didn't get an A" At the bottom you can write 70 students out of 100 got an A on the test.
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Please help and thank you!
Ad libitum [116K]

Answer:

32.both of their ideas are correct whether it is to replace x or y first it doesn't matter only one can be replaced to find the value of the other.

33.It doesn't really matter all of them are correct.

5 0
2 years ago
Read 2 more answers
How much longer will it take her to finish payin her bill?
Reika [66]

I would say, C.

hope this helps:)

3 0
3 years ago
Eric and YiTing commute to school every day . eric walks .81 km and yiting walks .65 km . how far did each of them walk in meter
Sergio [31]
1 kilometer is 1000 (or 10^3) meters, so Eric walks .81*10^3=810 meters and YiTing walks .65*10^3=650 meters.
7 0
3 years ago
Kendra has $3.15 in dimes and nickels. If she has 4 times as many dimes as nickels, how many of each coin does she have?
svetoff [14.1K]
  • It is important to note that:

A nickel = $0.05

A dime = $0.10

We would be representing,

The number of nickels =  n

The number of dimes = d

  • Kendra has $3.15 in dimes and nickels. Writing this statement as an algebraic expression:

0.05n + 0.10d = 3.15...............Equation 1

  • She has 4 times as many dimes as nickels. The algebraic expression for this statement :

4n = d ........................................ Equation 2

We would substitute 4n for d in Equation 1

0.05n  + 0.10 x 4n = 3.15...............Equation 3

0.05n + 0.4n = 3.15

0.45n = 3.15

Divide both sides by 0.45

0.45n/0.45 = 3.15/0.45

n = 7

The number of nickels is 7

We solve for d, the number of dimes

4n = d

n = 7

4 x 7 = d

28 = d

The number of dimes is  28

Therefore, Kendra has 7 nickels and 28 dimes

To learn more, visit the link below:

brainly.com/question/14749963

6 0
2 years ago
4|2x - 31|=36 solve for x
timofeeve [1]

Answer:

20

Step-by-step explanation:

4(2x - 31)=36

4×2x-4×31=36

8x-124=36

8x=36+124

8x=160

x=160/8

x=20

8 0
3 years ago
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