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Sliva [168]
4 years ago
14

Lauren simplified the expression (mm)

Mathematics
1 answer:
eduard4 years ago
8 0
she should’ve written m-12 as m12
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Alyn drives 20.4 miles in 17 minutes.
Galina-37 [17]

Answer:

  • 12 mph

Step-by-step explanation:

<em>Speed = distance/time</em>

  • Distance = 20.4 miles
  • Time = 17 minutes = 17*1/60 hours = 17/60 hours

<u>Speed is:</u>

  • 20.4 : 17/60 =
  • 20.4*60/17 =
  • 72 mph

<u>Alyn exceeded the limit by:</u>

  • 72 - 60 = 12 mph
5 0
3 years ago
H=48t-16t squared<br><br> 32=48t-16t sqaured
Artemon [7]
Your answer is 34.578

3 0
3 years ago
97.94 is 83% of what number?
Aleksandr [31]

Answer:

97.94 is 83% of 118

Step-by-step explanation:

Let the missing number be x

97.94=83% of x

I.e, 97.94=83/100 × x

97.94=83x/100

Cross multipy 97.94/1=83x/100

We have, 97.94 × 100 = 83x × 1

9794=83x

Divide both sides by 83 to make x the subject of the formula.

9794/83=83x/83

118=x

7 0
3 years ago
Evealute the expression when m= -2 m^2+9m+3
Volgvan

Step-by-step explanation:

m=-2

m^2+9m+3

substitute-2 in m

-2^2+9(-2)+3

= -19

8 0
3 years ago
Mr. Kovich is preparing materials for a craft project. He needs to cut 2 meters of string into pieces that are 0.2 meters long.
kondor19780726 [428]

Answer:

10 pieces

Step-by-step explanation:

2 divided by 0.2

20 divided by 2

10 pieces

8 0
3 years ago
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