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goldfiish [28.3K]
3 years ago
14

Reco noticed that a nearby store was selling skateboards 25% off. The original price of the skateboard he wanted was $68. He bou

ght the skateboard at the sale price. How much was his discount?​
Mathematics
1 answer:
nexus9112 [7]3 years ago
6 0
He bought the skateboard at $51 it was $17 cheaper
You might be interested in
9. Find the length of a base of a triangle with<br>an Area of 100 and a height of 25.​
liraira [26]

Answer:

8 (units)

Step-by-step explanation:

The formula to find the area of a triangle is A = 1/2(b*h). Since we know the area already, we can substitute that value in to calculate the answer backwards.

Plug in the numbers known:

A = 100

h = 25

Equation: 100 = 1/2(b*25)

Now solve:

100 = 1/2(b*25)

200 = b * 25

<em>8 = b</em>

So, the answer to your question is 8 (units).

Hope this helps!

6 0
3 years ago
What is the gcf of 36, 126, and 210?
Artyom0805 [142]

Answer:

Greatest common factor (GCF) of 36 and 210 is 6.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Solve the system by substitution.<br> [-2.5x+y = 13.5<br> 12.25x - y=-12.25
IrinaK [193]

Answer:

x = 5/39 , y = 539/39

Step-by-step explanation:

Solve the following system:

{y - 2.5 x = 13.5

12.25 x - y = -12.25

In the first equation, look to solve for y:

{y - 2.5 x = 13.5

12.25 x - y = -12.25

y - 2.5 x = y - (5 x)/2 and 13.5 = 27/2:

y - (5 x)/2 = 27/2

Add (5 x)/2 to both sides:

{y = 1/2 (5 x + 27)

12.25 x - y = -12.25

Substitute y = 1/2 (5 x + 27) into the second equation:

{y = 1/2 (5 x + 27)

1/2 (-5 x - 27) + 12.25 x = -12.25

(-5 x - 27)/2 + 12.25 x = 12.25 x + (-(5 x)/2 - 27/2) = 9.75 x - 27/2:

{y = 1/2 (5 x + 27)

9.75 x - 27/2 = -12.25

In the second equation, look to solve for x:

{y = 1/2 (5 x + 27)

9.75 x - 27/2 = -12.25

9.75 x - 27/2 = (39 x)/4 - 27/2 and -12.25 = -49/4:

(39 x)/4 - 27/2 = -49/4

Add 27/2 to both sides:

{y = 1/2 (5 x + 27)

(39 x)/4 = 5/4

Multiply both sides by 4/39:

{y = 1/2 (5 x + 27)

x = 5/39

Substitute x = 5/39 into the first equation:

{y = 539/39

x = 5/39

Collect results in alphabetical order:

Answer: {x = 5/39 , y = 539/39

5 0
3 years ago
Craig has a job waiting tables where he earns $3.15 per hour plus tips. Craig earned $74.67 in tips during his shift yesterday.
oksano4ka [1.4K]

Answer:

3.15x-79.48

i think c:

3 0
2 years ago
What is the area of this figure? Drag and drop the appropriate number into the box. A = cm² 108 135 189 318 A shape made up of a
Lyrx [107]
The square will have area
.. (9 cm)^2 = 81 cm^2.

The two triangles together will have area
.. (9 cm)*(12 cm) = 108 cm^2.

The sum of the areas of those three shapes is
.. 81 cm^2 +108 cm^2 = 189 cm^2
8 0
3 years ago
Read 2 more answers
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