2 years ago

A math teacher graded 45 problems in 3/5 of an hour. At that rate, how many problems can she grade in one hour

Mathematics

2 answers:

Shalnov [3]2 years ago

8 0

Answer: 75 problems

Step-by-step explanation:

3/5 of an hour is the same as 3/5 x one hour.

one hour is the same as 60 minutes , this means that 3/5 of an hour is the same as :

3/5 x 60 = 36 minutes

This means that , the teacher graded 45 problems in 36 minutes. then in 1 minutes ;

The teacher will grade 45/36 problems

so in 60 minutes ;

the teacher will grade 45/36 x 60 = 75 problems

dolphi86 [110]2 years ago

6 0

Answer:

Step-by-step explanation:

45*1/3=15

15*5=75

You might be interested in

Bens home improvement loan to build a security fence around his property was for $1,800.00 at 5.00% interest for 12 months. Afte

ehidna [41]

Did you ever figure this out? I need help with exams 3-5 I have the other answers. Let me know if you want to help each other.

7 0

2 years ago

Divide 3x^4-3x^3-4x^2-4x by x^2-2x

Citrus2011 [14]

Answer:

3x^2+3x+2

using Euclid's division algorithm

you can verify itt...

5 0

3 years ago

-3(y+3)=2y+3 what does y equal?

netineya [11]

[ Answer ]

Y = -12 / 5

[ Explanation ]

Expand:

-3y - 9 = 2y + 3

Add 9 to both sides:

-3y - 9 + 9 = 2y + 3 - 9

Simplify:

-3y = 2y + 12

Subtract 2y from both sides:

-3y - 2y = 2y + 12 - 2y

Simplify:

-5y = 12

Divide both sides by -5:

-5y / -5 = 12 / -5

Simplify:

Y = -12 / 5

<> Arsenal <>

3 0

2 years ago

Marks own a carpet store and sells hallway runners for k9.52/linear foot. a) How much is this per linear yard? b) How much is th

Dimas [21]

Answer:

28.56/linear yard

32.2256/linear meter

121.77984k

Step-by-step explanation:

a) Scale = k9.52*3 = 28.56/linear yard

b) Scale = k9.52*3.28 = 32.2256/linear meter

c) Cost = 3.9 * 32.2256 = 121.77984k

6 0

2 years ago

170 ÷15 = 15 x ______ = 170

lions [1.4K]

the answer would be 11 1/3

6 0

2 years ago