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3 years ago

Please HElppppppppppppp meeeeeeee! I have less than 10 minutes!

Mathematics

1 answer:

attashe74 [19]3 years ago

8 0

Answer:

A) 5 3/10

B) 785 3/20

Step-by-step explanation:

Hope this helps <3

you find a common denominator and then simplify all fractions to that common denominator. then, you add them up!

2 1/5 + 3 1/10

5 can fit into 10 twice so it becomes...

2 2/10 + 3 1/10 which equals

5 3/10

472 2/5 + 312 3/4

5 times 4 is 20

472 8/20 + 312 15/20

there is a remainder of 3 for the fractions so you put it over 20.

785 3/20

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6x + 3y = 12 6x - 5y = 60

brilliants [131]

6x+3y=12. so... 6x=12-3y.

6x-5y=60, so... 6x=60+5y

As 6x=6x

12-3y=60+5y

12-60=8y

8y=-48

So y=-48/8=-6

When y=-6,

6x-5(-6)=60

6x+30=60

6x=30

Therefore x=5.

So x=5 and y=-6.

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4 years ago

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3 years ago

June had an equal lengths of yellow and green ribbons. After using 30cm of yellow ribbon and 3.3m of green ribbon,the remaining

Ratling [72]

Answer:

4.05 meters or 405 cm

Step-by-step explanation:

The equation to use is

(x - 330) x 5 = x - 30

330 is equal to 3.30 meters.

Then solve the equation.

(X - 330) x 5 = x - 30

5x - 1650 = x - 30

-x

4x - 1650 = -30

+1650 + 1650

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3 years ago

Let f and g be two functions defined as

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3 years ago