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gtnhenbr [62]
2 years ago
8

How to set up the equation and solve for x and y variables

Mathematics
1 answer:
aleksklad [387]2 years ago
8 0

y = mx + b

I mean, thats the formula? :/

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The Lamaster family is a family of five people. They have used 4,885.78 gallons of water so far this month. They cannot exceed 7
oksian1 [2.3K]

Let X be the amount of water one person can use.

Multiply that by 5 people to get 5X

That amount plus what they already used ( 4885.78) needs to be less than or equal to the amount they are limited to ( 7250.50 ).

Now write out the equation to get : 5x + 4885.78 ≤ 7250.50

8 0
3 years ago
What is the correct way to write 1.002 in expanded and word form?
olasank [31]

The digits after the decimal separator are, in order, tenths, hundreths and thousandths. So, your number is composed by:

  • 1 unit
  • 0 tenths
  • 0 hundreths
  • 2 thousandths

So, you would call this name "one and two thousandths"

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2 years ago
Find the equation of the exponential function that passes through the points (- 1, 1/6) and (1, 2/3) and Use the form y = c * a
icang [17]

Answer:

  • y = 1/3*2^x

Step-by-step explanation:

<u>Given function</u>

  • y = c*a^x

The points (-1, 1/6) and (1, 2/3) lie on the graph

<u>Substitute the values of x and y to get the system of equations:</u>

  • 1/6 = c*a^(-1) ⇒ 1/6 = c/a ⇒ a = 6c
  • 2/3 = c*a^1 ⇒ 2/3 = ac

<u>Substitute a and solve for c:</u>

  • 2/3 = 6c*c
  • 1/9 = c²
  • c = √1/9
  • c = 1/3

<u>Find a:</u>

  • a = 6c = 6*1/3 = 2

<u>The equation of the function:</u>

  • y = 1/3*2^x

8 0
3 years ago
How to solve 2.75 + .003+ .158
natita [175]
2.75 + .003 + .158 \\ \\ 2.911 \\ \\ Answer: \fbox {2.911}

This problem can be done using long addition.
8 0
2 years ago
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A dress is selling for $100 after a 20 percent discount. What was the original selling price?
qaws [65]
100 = .8x
X = 125
$125
5 0
2 years ago
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