MATHEMATICS HIGH SCHOOL

If 9 men can do a job in 24 days, how many men are needed to do the same job in 18 days?a. 11
b. 12
c. 15
d. 18

Answers

Answer 1
Answer:

Answer:

b  12

Step-by-step explanation:

1/(9*24)=1/(x*18)

9*24=18x

x=12
Answer 2
Answer:

Answer:

b. 12 mens are needed to do that job

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Marty's cat weighs 10.4 pounds. this is 24.4 pounds less than the weight of his dog. write and solve a subtraction equation to find the weight of marty's dog.

Answers

I hope this helps you




dog-24,4=10,4


dog=34,8

A hardcover book sells for 24$ at the bookmart. Ben pays 25.02 for the book. What is the sales tax rate?

Answers

The sales tax rate would be 5 percent.

Take the 5 and turn it to a decimal, 0.05.

Times that by 24. 0.05×24= 1.2

That equals out to 1.2, but since we're talking about money we have to add the zero at the end. 1.20.

Now add the 1.20 to 24.

24+1.20= 25.02.

hope this helps!

Solve for x: 6x – 8y = 12

Answers

Hi there!


Since we have 2 variables in the given equation, and you only want to solve for one, the other will end up in your answer.


6x + 8y = 12


Step 1) Add 8y to both sides.


6x - 8y + 8y = 12 + 8y 6x = 8y + 12


Step 2) Divide both sides by 6.


(6x)/(6) = (8y + 12)/(6)


x = (4)/(3) y + 2


Final Answer -


x = (4)/(3) y + 2


Hope this helps! :D
        6x - 8y = 12
6x - 8y + 8y = 8y + 12
               6x = 8y + 12
                6          6
                 x = 1¹/₃y + 2

Solve the polynomial inequality: 4x² + 19x - 5 ≤ 0

Answers

Answer:

4x² + 19x - 5 ≤ 0

4x²+20x-x-5≤ 0

per factorization :

4x(x+5)-1(x+5)≤0

(x+5)(4x-1)≤0

x+5≤0

x≤-5

x-4≤0

x≤4

x[-5, 1/4]

Which conversion requires division

Answers

kilo to centi. hope this helps
What conversation? be more specific.

Match the reasons with the statement.Given: 12 - x = 20 - 5 x

To Prove: x = 2

1.
Division property of equality

A. 12 - x = 20 - 5 x

2.
Subtraction property of equality

B. 12 + 4 x = 20

3. Addition property of equality

C. 4 x = 8

4. given

D. x=2

Answers

To prove that x = 2 in the equation given, first, we write the given.
               (4) Given:    (A)  12 - x = 20 - 5x
   Then, add 5x to both sides of the equation,
               (3) Addition property of equality:    (B) 12 + 4x = 20
Then, subtract 12 from both sides of the equation
              (2) Subtraction property of equality:  (C) 4x = 8
Lastly, divide both sides by 4
              (1) Division property of equality :    (D) x = 2
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