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anzhelika [568]
3 years ago
11

What is the answer to the equation 10x - 3y + 21

Mathematics
1 answer:
dolphi86 [110]3 years ago
5 0

The answer is: 21  Hope this helps :D

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8 0
3 years ago
Tickets for a dance recital cost $15 for adults and $7 for children. The dance company sold 253 tickets, and the total receipts
elixir [45]

Answer:

Adult tickets =125

Child tickets = 128

Step-by-step explanation:

Let the number of adult and children tickets sold be x and y respectively

So that

x+y= 253--------1

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And given that tickets for a dance recital cost $15 for adults and $7 for children hence

15x+7y= 2771-------2

Solving equation 1 and 2 simultaneously we have

x+y= 253---------------1

15x+7y= 2771----------2

Let us multiply equation 1 by 15 to get equation 3 to eliminate x and subtract equation 2 from 3

15x+15y=3795---------3

-{15x+7y= 2771----------2

0+8y=1024

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y= 1024/8

y= 128 tickets

So solve for x let us put y= 128 in equation 1

x+ 128=253

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x= 125 tickets

8 0
3 years ago
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