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vagabundo [1.1K]
3 years ago
12

Evaluate: 2x - y for x = 3 and y = - 5

Mathematics
1 answer:
Elza [17]3 years ago
4 0
2x-y
2(3)-(-5)
6+5
11

The answer is 11.
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Which is the same as 98.52 ÷ 10?
wlad13 [49]
Moving the decimal over one space to the left. (9.852)

Explanation:
If you multiply a decimal by 10 the decimal point will move one space to the right to make a bigger number. But, if you divide by 10, it will move one space to the left to make a smaller number. (÷ means left, x means right) The The rule is, however many 0’s you have after the 1, that is how many spaces you move your decimal point. For an example if I wanted to multiply or divide a decimal by 100, I would move the decimal point 2 spaces over instead of just one because the number 100 had two 0’s after the one.This rule will not work with numbers like 20, or 150, because they are not multiples of 10 like the other numbers. Numbers that will work are 10, 100, 1000, 10000, 100000 and so on.

Sorry this is so long, I just wanted to make sure you understand because I had trouble with it when I was learning it.
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Target is having a huge winter season sale on all of their televisions. A 42in screen tv that usually retails at $580 is marked
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Answer: You do not because the tv costs $464.

Step-by-step explanation:

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= 580 - 116

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<em>Since you came with $450, you will not be able to buy the television as you would be short of the $464 required. </em>

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3 years ago
find the ninth term of the geometric sequence, given the first term and the common ratio: a1=1, r=-1/3
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Answer:

0.0001524

Please Mark Brainliest If This Helped!

3 0
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Jordana was shown this diagram of an isosceles trapezoid and its reduction. She was asked to find the perimeter of the
PilotLPTM [1.2K]

The question is unclear to me, 30x3=10 WHAT, 30x3=90 not 10

And also it seems you already know the answer Perimeter=28cm

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Answer:

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Step-by-step explanation:

So basically you need 10 cups of coffe in fifteen minutes, so 60/15=4 then time 10. so 40 is how much coffee you need in a hour, but we are solving the pot so 40/6= 6 2/3. but it says how many pots so we round it up so its 7. (Unless you wanna be precise)

6 0
3 years ago
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