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Vladimir [108]
3 years ago
12

What the vaule of x in the equation 3x-4y=65, when y =4

Mathematics
1 answer:
lana [24]3 years ago
7 0

Answer: x=27


Step-by-step explanation:

3x-4(4)=65

3x-16=65

3x=65+16

3x=81

3x/3=81/3

X=27



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Jim and Mark left a 20% tip after having lunch at a restaurant. The amount of the tip was $12. Mark's lunch cost $16. Write an e
Vlad1618 [11]

Answer:

$44

Step-by-step explanation:

Use formula

% out of 100/100% = part/whole

20%/100 = 12/16+x

Cross multiply

(12)(100) = (20)(16+x)

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Solve for x

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Jim's lunch was $44.

8 0
3 years ago
Paper depot is swnding out 28 trucks to deliver paper to customers today. Each truck is being loaded with 3 cases of paper. 283
Stells [14]

Answer:

84 cases

Step-by-step explanation:

Given that:

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4 0
3 years ago
How to find two consecutive numbers whose squares differ by 15?
LUCKY_DIMON [66]
Let x is the first no. then the other no. will obviously be (x+1)

according to question,
(x+1)²- x²= 15
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hence numbers are x = 7 and x +1 = 7+1 = 8
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hope it helped
4 0
2 years ago
Question 6 of 25
sladkih [1.3K]

Answer:

C

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
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