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Lorico [155]
2 years ago
6

Ava grades 10 ½ tests in ¾ of an hour. At this rate, how many tests does she grade each hour?

Mathematics
2 answers:
Cloud [144]2 years ago
5 0

Answer:

14

Step-by-step explanation:

if you set it up as a porportion, 10.5/.75, and you find that in order to make .75 equal to one, you multiply by 1.3333333333333333333333333333333333333333333333333333333333333333333333333333333333333333...

10.5*1.3333333333333333333333333333333333333333333333333333333333333333333333333333333333333333...=14

Hope I helped.  

dimulka [17.4K]2 years ago
4 0

Answer:

14 tests

Step-by-step explanation:

10 1/2 divided by 3/4 s 14 tests

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Can u guys plz help me with these questions
Vsevolod [243]

Answer:

on question #2, the answer is A.

Step-by-step explanation:

19-5 is 14.

<em>Hope this helps!</em>

7 0
2 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%5Csf%202x%2B7%2B8x%3D35" id="TexFormula1" title="\sf 2x+7+8x=35" alt="\sf 2x+7+8x=35" align="
Dafna11 [192]

Answer:

x=14/5

Step-by-step explanation:

Group like terms

2x+8x+7=35

Add similar elements: 2x+8x=10x

10x+7=35

Subtract 7 from both sides:

10x+7−7=35−7

Simplify

10x=28

Divide both sides by 10

10x/10 =28/10

Simplify:

x=14/5

7 0
3 years ago
PLEASE HELP VERY CONFUESED
Eva8 [605]
V=(4/3)pir^3
r=3
V=(4/3)pi3^3
V=36pi
v=113.04 cubic feet
7 0
3 years ago
Read 2 more answers
Need help with this one as well I would be very grateful please need help !
hram777 [196]
You are given two x and y pairs: (100,45) and (570,162.5)
First solve for the slope, m.

m = (162.5 - 45) / (570 - 100)
m = 117.5 / 470
m = 0.25

Not only is "m" the slope but it is the rate (dollars per minute) in the question. So it's 25 cents per minute to use the phone.
After imputing "m"  the linear equation looks like this:
y = 0.25x + b

Use either point as (x,y) to solve for the y-intercept "b". I'll use (100,45)

45 = 0.25(100) + b
45 = 25 + b
45 - 25 = b
20 = b

Not only is "b" the y-intercept but it is also always the flat fee added on to linearly increasing cost questions like this.

Final equation is:
y = 0.25x + 20

Part B.) If 939 minutes are used. Just put that in for x and solve for y.

y = 0.25(939) + 20
y = 234.75 + 20
y = 254.75

8 0
3 years ago
Can you help me?
Kay [80]

Answer:

I love the blank question,it seems glitched

Step-by-step explanation:

5 0
3 years ago
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