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lapo4ka [179]
2 years ago
15

Solve for x, when y = 5. 9x + 2y = 10​

Mathematics
1 answer:
Artist 52 [7]2 years ago
6 0
  • Answer:

<em>x = 0</em>

  • Step-by-step explanation:

<em>Hi there ! </em>

<em>9x + 2y = 10</em>

<em>replace y = 5</em>

<em>9x + 2×5 = 10</em>

<em>9x + 10 = 10</em>

<em>9x = 10 - 10</em>

<em>9x = 0</em>

<em>x = 0 </em>

<em>Good luck !</em>

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luke has $1.40 in quarters and nickels. he has 2 more quarters than nickels. how many coins of each type does he have?
Ainat [17]

Answer:

3 nickels and 5 quarters

Step-by-step explanation:

Let n = number of nickels

q = number of quarters

q = n+2

.25q + .05n = 1.40

Using the first equation and replacing q in the second equation

.25( n+2) + .05n = 1.40

Distribute

.25n+.50 +.05n = 1.40

Combine like terms

.30n +.5 = 1.40

Subtract .5 from each side

.3n +.5-.5 = 1.40-.4

.3n = .9

Divide by .3

.3n/.3 = .9/.3

n = 3

q = n+2

q=5

8 0
2 years ago
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Which of the following equations describe the line shown below? <br><br>Check all that apply.
WITCHER [35]
Here, first we need to calculate the slope of the line, 
Here, Coordinates = (-6, 2) (-1, -4)
m = y2 - y1 / x2-x1
m = 2 + 4 / -6 + 1
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Now, Take first coordinate: y - 2 = -6/5 (x + 6)
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3 years ago
Which step brings you closest to getting the variable alone on one side of the equation
Oliga [24]

Answer:

Adding 5 from both sides then dividing by 7

Step-by-step explanation:

The best way to isolate x is to add 5 to both sides first:

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If a car is traveling at 64 mph how many miles will it travel in 6 hours
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2 years ago
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gizmo_the_mogwai [7]

Answer:

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Step-by-step explanation:

Given:

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Now, to divide using long division method:

Step 1: Divide 7 by 3. 3 x 2 =6.

So, 1 will be remainder.

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