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miv72 [106K]
2 years ago
9

Bag C is four times lighter than Bag A. Bag B is twice as heavy as Bag C. How much heavier is Bag A than Bag B ?​

Mathematics
1 answer:
LiRa [457]2 years ago
8 0

Answer:

Step-by-step explanation:

Current Weight         Weight after adding Marbles

Giulio:    2x                          2x + 10                    

Jim:         x                             x + 5

You didn't post the options so hopefully you can determine the answer based on the info I provided above.

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A collection of five coins has a value of $1 and consists of dimes and
DENIUS [597]

For this case we propose a system of equations. We have to:

x: Let the variable that represents the number of dimes

y: Let the variable that represents the number of quaters

We know that:

One dime equals 10 cents, $0.10

A quater equals 0.25 cents, $0.25

According to the statement we have:

x + y = 5\\0.10x + 0.25y = 1

We multiply the first equation by -0.10:

-0.10x-0.10y = -0.5

We have the following equivalent system:

-0.10x-0.10y = -0.5\\0.10x + 0.25y = 1

We add the equations:

-0.10x + 0.10x-010y + 0.25y = -0.5 + 1\\0.15y = 0.5\\y = \frac {0.5}{0.15}\\y = 3.33

Approximately 3 quater coins

x = 5-y = 5-3 = 2

And two dimes

Answer:

3 quater

2 dimes

4 0
3 years ago
What percent of $200 is $40?
forsale [732]
To find the answer to the question we do the equation 40/200*100

Which gets us our answer of 20%
4 0
3 years ago
Read 2 more answers
How many real solutions does this system of equations have? x2 +3 = y<br> 3х — у+1 = 0
konstantin123 [22]

Answer:

Step-by-step explanation:

y = x²+3

y = 3x+1

x² + 3 = 3x +1

x² - 3x + 2 = 0

(x-2)(x-1) = 0

x = 2, 1

Two solutions

(2,7) and (1,4)

4 0
3 years ago
What is the height of a right triangle if its other two sides are 30 centimeters and 10 centimeters long?​
Mila [183]

Answer:

Step-by-step explanation:

It depends on whether the 30 cm side is the hypotenuse, or one of the legs.

If the 30 cm side is the hypotenuse, then the third side is √(30^2-10^2) = √800 = 20√2 cm

If the 30 cm side is one of the legs, then the hypotenuse is √(30^2+10^2) = √1,000 = 10√10 cm

7 0
2 years ago
A child bus ticket costs $0.40 and an adult’s ticket costs $0.70. A group of 11 individuals pays $5.90 for their fare.
Fiesta28 [93]
Let
A------------> <span>number of children
B------------> </span><span>number of adults

we know that
0.40A+0.70B=5.90--------------------------> equation 1
A+B=11------------> A=11-B----------------> equation 2

using a graph tool------------> to resolve the equations system
see the attached figure

the solution is 
A=6
B=5

the answer is 
A is bigger</span>

3 0
3 years ago
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