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Sedaia [141]
3 years ago
12

Another math question from me

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
4 0
A. Just write an expression:
49.13-2(32.5) +2(74.25)
That's your answer.

B. Simplify the above expression to get:
49.13-65+148.5 = 132.63
So your answer would be, "He had $132.63 left in his account."
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A bathtub contains 12 gallons of water. With these 12 gallons, the bathtub is only 30% full. How many gallons of water can the b
Pachacha [2.7K]

Answer:

40 gallons

Step-by-step explanation:

Let the number of gallons that would completely fill the bathtub be represented by N.

Since 12 gallons of water gives 30% of the number of gallons to fill the bathtub, then;

30% of N = 12

\frac{30}{100} x N = 12

30N = 12 x 100

30N = 1200

divide both sides by 30,

N = \frac{1200}{30}

   = 40

The number of gallons that would completely fill the bathtub is 40 gallons.

6 0
2 years ago
2x + 3y = 26 3x + 5y = 40<br>find x and y I will give brainliest
Yuki888 [10]

Answer:

x = 10 and y = 2

Step-by-step explanation:

multiply first equation by 5 and 2nd equation by 3 then subtract equation 1 and 2, we get,

10x+15y= 130

9x+15y=120

( -) (-) (-)

<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>

x= 10

substituting the value of x in equation 1 we get

2x + 3y = 26

2*10 + 3y = 26

3y = 26-20

y =6/3

y= 2.i hope this helps

7 0
3 years ago
I need help pls help me!!
Annette [7]

I think the answer is D

6 0
3 years ago
Read 2 more answers
Never get any closer then _____ feet when a train is passing through a railroad crossing. 25 30 15 20
nekit [7.7K]

It totally depends on speed at which train is moving.

If the speed of train is below 100 miles per hour the minimum distance maintained should be 4 feet.

If the speed of train is above 100 miles per hour and less than 125 miles per hour the minimum distance maintained should be  6.6 feet.(Approx)

As , when a train is moving with velocity more than this i.e above 125 miles per hour the minimum distance should be 15 feet.(Approximately)

Option (C) 15



3 0
3 years ago
Read 2 more answers
What is the value of x if 3x - 6 = 21 ?
Anestetic [448]

Answer:

<h2>x = 9</h2>

Step-by-step explanation:

3x-6=21\qquad\text{add 6 to both sides}\\\\3x-6+6=21+6\\\\3x=27\qquad\text{divide both sides by 3}\\\\\dfrac{3x}{3}=\dfrac{27}{3}\\\\x=9

3 0
3 years ago
Read 2 more answers
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