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Arada [10]
3 years ago
8

Find the x and y intercepts for the equation 3x-2.5y = 30.

Mathematics
2 answers:
Dmitry_Shevchenko [17]3 years ago
7 0
Answer: x-int = 10 and y-int = -12

Explanation:

Find x intercept:

To find x intercept set y = 0

3x - 2.5(0) = 30

3x = 30
x = 10

Find y-int:
Set x = 0

3(0) - 2.5y = 30
-2.5y = 30
y = 30/-2.5
y = -12
Likurg_2 [28]3 years ago
5 0

Answer:

x=0.833....y+10 (its a repeating 3)

y=1.2x−12

Step-by-step explanation:

for x is:

Add 2.5y to both sides.

3x−2.5y+2.5y=30+2.5y

3x=2.5y+30

Divide both sides by 3

x=0.833333y+10

for y is:

Add -3x to both sides.

3x−2.5y+−3x=30+−3x

−2.5y=−3x+30

Divide both sides by -2.5.

y=1.2x−12

hope this helps

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If their food and beverages costs$25.30 and there is an 8% meals tax, how much is the bill
Mashutka [201]
Hey there Unrazed90,

Answer : 

100% = $25.30
1% = $25.30 / 100
      = $0.253
8% = $0.253 x 8 
      = $2.024
Total = $25.30 + $2.024
         = $27.324
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Hope this helps :D

<em>~Natasha ♥</em>
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3 years ago
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Vika [28.1K]

Answer:

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Step-by-step explanation:

Let the ages be j and d.

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Substitute 11 for d in the first equation.

j = d + 5

j = 11 + 5

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Answer: Janet is 16, and David is 11.

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Help&amp;EXPLAIN <br><br> Don’t use for points or I’ll take it back and report
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