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borishaifa [10]
3 years ago
6

An item is on sale for 50% off the regular price of $3.18. A customer buys one and gives the cashier $5.00. The cashier gives th

e customer
Mathematics
1 answer:
monitta3 years ago
8 0
The regular price is 3.18.
 50% off half the price, so you can either divide the regular price by 2 or multiply it by 0.50

3.18 / 2 = 1.59   ( 3.18 *0.50 = 1.59)

so the sale price is 1.59

now subtract the sale price from $5 to find the amount of change they got back:

5.00 - 1.59 = $3.14 change back
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Answer:

6)

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c. x=30

Step-by-step explanation:

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7/9×45=x

7×45/9=x

315/9=x

35=x

x=35

————————

b. 10/8=5/x

5/4=5/x

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5x/4=5(the x is NOT in the middle of the division sign)

5x=5×4

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———————

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x=15/17×34

x=15×34/17

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Answer:

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Step-by-step explanation:

sin 15 =8/x

x = 8 / sin 15

x = 30.91 cm.

and

tan 15 = 8/y

y = 8 / tan 15

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The value of z can be found using the Pythagoras theorem:

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