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lesya692 [45]
3 years ago
8

Mia can finish her math homework in 30 minutes. Every night there are 45 problems for homework. How many problems can she finish

in 4 minutes?​
Mathematics
1 answer:
den301095 [7]3 years ago
8 0
I believe that it would be 75
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It took John 12 hours riding his bike to make the round trip to his uncle's. If he averaged 20 mph out and 30 mph back, how long
notsponge [240]

Answer:

Step-by-step explanation:

Let the time taken by the john to get to his uncle be x.

Let the time taken by the john to get back from his uncle be y.

So,

x+y=12 ------ equation 1

According to the given velocities:

20x=30y

x=3/2y

Put the value x=3/2y in equation 1

3/2y+y =12

3y+2y/2=12

3y+2y=12*2

5y=24

y=24/5

y=4.8h

Now put the value of y in x=3/2y

x=3/2*4.8

x=14.4/2

x=7.2h ....

6 0
3 years ago
Directions- Write a formula from the given day for each linear function Find the equation of the line parallel to 6x+3y-11=0, th
lukranit [14]

Answer:

y = -3x-1 or 3x + y = -1

Step-by-step explanation:

6x + 3y - 11 = 0 can be written as y = -3x + (11/3)

In parallel lines the slope remains the same but the constant changes. To find the constant you place in the cordinates for x and y.

5 = -3(-2) + b

5 = 6 + b

5 - 6 = b

-1 = b

Now you replace (11/3) by the new b, -1

y = -3x - 1

4 0
3 years ago
A circle with the equation (x + 3)2 + (y - 2)2 = 25 is reflected over the line x = 2.
zlopas [31]
(x-7)² + (y-2)² = 25
3 0
3 years ago
Read 2 more answers
PLEASE HELP STRAIGHTAWAY:
LUCKY_DIMON [66]

Answer:

2 times

Step-by-step explanation:

6 0
3 years ago
Oh need to know alot and a lot
o-na [289]

Answer:

yeah so it is 74882828 it is pretty easy

5 0
2 years ago
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