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ddd [48]
4 years ago
7

An arena is hosting a rock concert. It has "silver" and "gold" seating sections. The event organizers are selling the first 100

gold tickets at the price of a
silver ticket. The price of a silver ticket is $7 more than 1/2 the price of a gold ticket. The price of a silver ticket is $14 less than 6/5 the price of a gold ticket.
How much will one of the first 100 buyers save on the price of a gold ticket?​
Mathematics
1 answer:
Vikentia [17]4 years ago
4 0

Answer:

s = the price of a silver ticket

g = the price of a gold ticket

s = 7 + (1/2)*g           (first relation)

s = (6/5)*g - 14        (second relation)

but (first relation) = (second relation) so we get

7 + (1/2)*g = (6/5)*g - 14

(6/5)*g - (1/2)*g = 7 + 14

(7/10)*g = 21

g = 30

from (first relation) we get s = 7 + (1/2)*30 = 22.

how much would someone save? the answer is g - s = 8.

Step-by-step explanation:

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Jane is 20 lbs heavier than Alive. If Jane's weight is 120% that of Alice, find the weight of Alice
mojhsa [17]

Answer:

Alice's weight is 100 lbs.

Step-by-step explanation:

Let's denote Jane's weight by J, and Alice's weight by A.

The exercise says that Jane is 20 lbs heavier than Alice. So that if you add 20 lbs to Alice's weight, you get Jane's weight. In equation form:

20+A=J

It also mentions that Jane's weight is 120% that of Alice. So that if you multiply Alice's weight by 1.2, you get Jane's weight. In equation form:

1.2 \cdot A=J

Plugging this second equation onto the first equation, we get:

20+A=1.2A

And now solving for A:

20=1.2A-A

20=0.2A

\frac{20}{0.2}=A

100=A

Therefore Alice's weight is 100 lbs.

3 0
3 years ago
The difference between a number and 12 is 20<br><br> Write an equation
Kryger [21]
20 - 12 = x
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5 0
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Step-by-step explanation:

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VladimirAG [237]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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