Answer:
Wilton found 10 dimes while cleaning his father's truck.
Step-by-step explanation:
Given that:
Total amount collected = $8.50 = 8.50*100 = 850 cents
Let,
x be the number of dimes
y be the number of quarters
According to given statement,
10x+25y=850 Eqn 1
y = 3x Eqn 2
Putting y=3x in Eqn 1

Dividing both sides by 85

As x represents dimes, therefore, number of dimes is 10.
Hence,
Wilton found 10 dimes while cleaning his father's truck.
Answer:
Step-by-step explanation:
Solve for
y
y
.
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y
=
−
9
+
3
x
y
=
-
9
+
3
x
Rewrite in slope-intercept form.
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y
=
3
x
−
9
y
=
3
x
-
9
Use the slope-intercept form to find the slope and y-intercept.
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Slope:
3
3
y-intercept:
−
9
-
9
Any line can be graphed using two points. Select two
x
x
values, and plug them into the equation to find the corresponding
y
y
values.
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x
y
2
−
3
3
0
x y 2 -3 3 0
Graph the line using the slope and the y-intercept, or the points.
Slope:
3
3
y-intercept:
−
9
-
9
x
y
2
−
3
3
0
x y 2 -3 3 0
image of graph
Answer:
225 minutes
Step-by-step explanation:
45 min = 20% = 20/100
20 x 5 = 100
45 x 5 = 225