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Alecsey [184]
3 years ago
12

| 5x -2y | - | 3x | if x = -3 and y = 2

Mathematics
2 answers:
Irina-Kira [14]3 years ago
7 0
|(5)(-3)-(2)(2)|-|(3)(3)|
= 10
Natalka [10]3 years ago
5 0

Answer:

If x = -3 and y = 2, then |5x-2y|-|3x| = 10

Step-by-step explanation:

This is a problem that utilizes both substitution and the order of operations.

|5x-2y|-|3x| = \\|-15-(2)(2)|-|(3)(-3)| =\\ |-15-4|-|(3)(-3)| =\\|-19|-|(3)(-3)| =\\19-|(3)(-3)| =\\19-|-9| =\\19-9 =\\10


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Raymond just got done jumping at Super Bounce Trampoline Center. The total cost of his session was $43.25dollar sign, 43, point,
mars1129 [50]

Answer:

The equation that represents the money he spent by the time he was on the trampoline is "total amount = 7 + 1.25*x" and on that day he spent 29 minutes on the trampoline.

Step-by-step explanation:

The question is incomplete, but we can assume that the problems wants us to determine an equation for the time in minutes that Raymond spent on the Super Bounce.

In order to write this equation we will attribute a variable to the amount of time Raymond spent on the trampoline, this will be called "x". There were two kinds of fees to ride the trampoline, the first one was a fixed fee of $7 while the second one was a variable fee of $ 1.25 per minnute spent playing. So we have:

total amount = 7 + 1.25*x

Since he spent a total of $43.25 on that day we have:

1.25*x + 7 = 43.25

1.25*x = 43.25 - 7

1.25*x = 36.25

x = 36.25/1.25 = 29 minutes

The equation that represents the money he spent by the time he was on the trampoline is "total amount = 7 + 1.25*x" and on that day he spent 29 minutes on the trampoline.

6 0
3 years ago
The diagram shows a periscope used to see objects that are behind or under a barrier. What makes it possible to see an object wh
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Answer: A. contains mirrors that reflect the object

Step-by-step explanation:

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Depending on the length of the periscope, this continues until the last mirror reflects the incoming light to the eyes of the person using the periscope thereby allowing them to see objects hidden behind or under a barrier.  

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3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

Carter's coins could be;

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Step-by-step explanation:

The available coin denominations are;

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Since the coins are more than $0.95, we can have;

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25¢× 1

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