MATHEMATICS HIGH SCHOOL

What is the value of x in the equation 3x – 4y = 65, when y = 4?
the answer is x=27

Answers

Answer 1
Answer: What is the value of x in the equation 3x-4y=65 when y=4?

Simple...plug n chug..

3x-4(4)=65

3x-16=65

Now, isolate the variable, x....

3x-16=65
    +16 +16

3x=81

Now, divide,

(3x)/(3) = (81)/(3)

x=27.

Thus, your answer.

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Last month, Rhonda earned $3200. Of that amount, she spent $1350 on rent. What percent of her income went to rent, to the nearest tenth of a percent?

Answers

Divide 1350 by 3200.

1350 ÷ 3200 = 0.422

42.2% of her income went to rent. 

Solve the inequality 2(x-3)-5x<9

Answers

Answer:

x > -5

Step-by-step explanation:

Answer:

Step-by-step explanation:

2(x-3)-5x<9 expand left side

2x-6-5x<9. group like terms on left side

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Four candidates are running for president of the student council. Three other candidates are running for vice-president. How many different ways can the two offices be filled?a.
6 different ways
c.
12 different ways
b.
10 different way
d.
15 different ways

Answers

c. 12 different ways
3*4=12

What is the equation of the line with an x-intercept of -1 and a y-intercept of 2?

Answers

To solve this question. Take the two points they have given you. X int= (-1,0) and y int= (0,2). Solve for m, slope. M= 2-0/0--1= M=2/1=2. Put the value of m in slope y intercept form.(You could put it any other form, standard, slope point form). So y=mx+b= y=2x+2.

Write a real world situation that would representby the system y=3x +20 and y=5x + 10

Answers

there are 2 car rental companies
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the second one charges 5 dollars per day and a 10 dollar insurance fee
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Kendra has a painting canvas that is 24 inches wide by 33 inches high. She painted a red rose, which covered 50% of the canvas. What was the area of the canvas which was covered by the red rose?

Answers

Area of the canvas = 24 x 33 = 792 in²

50% of 792 = 0.5 x 792 = 396 in²

Answer: 396 in² was covered by the red rose.
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