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Kruka [31]
3 years ago
13

Brianna went to a carnival. She played five games and rode six rides. Justin went to the same carnival and played seven games an

d rode eight rides. If Brianna paid $11.75 and Justin paid $16.15, how much did one game cost to play?
$0.50

$1.45

$1.25

$1.50
Urgent!
Mathematics
2 answers:
erastovalidia [21]3 years ago
6 0

Answer:

  $1.45

Step-by-step explanation:

To answer the question, we would like to have an equation that has the cost of a game as its only variable. That is, we would like to eliminate the cost of a ride from the system of equations we must write.

Let g and r represents the costs of a game and a ride, respectively. Then the expenses of the two carnival-goers can be described by ...

  5g +6r = 11.75

  7g +8r = 16.15

We note that the ratio of coefficients in the variable (r) that we want to eliminate is 3:4. So we can subtract 4 times the first equation from 3 times the second to eliminate that variable.

  3(7g +8r) -4(5g +6r) = 3(16.15) -4(11.75)

  g = 1.45 . . . . . . simplify

The cost to play one game was $1.45.

andreyandreev [35.5K]3 years ago
3 0

Answer:

$1.45

Step-by-step explanation:

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ExtremeBDS [4]

Step-by-step explanation:

11.68-0.48

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11.20÷1.6

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4 0
3 years ago
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nasty-shy [4]

We have to find LCM of 12,14,16

Refer to the attachment

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5 0
2 years ago
If 90 is 30% of a number , what is 200% of the number
9966 [12]

Answer:

600

Step-by-step explanation:

To find 100% we can divide by 30 (to find 1%) then times by 100 (to find 100%)

90÷30=3

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100%=300

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3 0
2 years ago
4+xThe function g is defined by g(x) =5 + 3xFind g(5n).
Nikolay [14]

The function g is defined by:

g(x) = (4 + x) / (5 + 3x) ...(1)

Now, we need to find g(5n); that is, we make: x = 5n

Replacing this into equation (1):

g(5n) = (4 + 5n) / (5 + 3*(5n)) = (4 + 5n) / (5 + 15n)

So, the final answer is:

g(5n) = (4 + 5n) / (5 + 15n)

8 0
1 year ago
Lisle bought 38 pounds of red grapes and 512 pound of green grapes how many pounds of Grapes did he buy
Svet_ta [14]

Answer:

19/24

Step-by-step explanation:

From the question we are informed that Lisle bought 3/8 pounds of red grapes and 5/12 pound of green grapes

✓3/8 pounds of red grapes and 5//12

✓First thing to do is to add the fractions

But we need " the least common denominator" because their denominator are not the same, we need to make it the same...

✓ The two denominator ( 8 and 12) are both factor of 24, therefore their "least common denominator" is 24.

✓To make 3/8 pounds of red grapes has a denominator of 24, we multiply both the denominator & numerator with factor of 3.

3/8 = (3×3)/(8×3)=9/24

✓To make 5/12 pounds of green grapes has a denominator of 24, we multiply both the denominator & numerator with factor of 2.

5/12= (5×2)/(12×2)= 10/24

✓ we can see they both have the same denominator, then we can now "add both denominators"

(9+10)=19

✓ Then place the addition of the denominators on the least common denominator.

= 19/24.

Therefore, he bought 19/24 of grapes

5 0
3 years ago
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