You can do long division by moving the decimals over and following DMSBR, but your final answer is 24.8
Answer:
24 hours
Step-by-step explanation:
Kristen = 8 hours
Kristen and Courtney = 6 hours
Courtney = x hours
in six hours kirsten can do 6/8 of the job
6/8 = 3/4
So kirsten is going to be doing 3/4 of the job
Courtney is only going to do 1/4 of the job
Number of hours it takes Courtney to do the job
6/x = 1/4
Cross product
6 * 4 = x * 1
24 = x
x = 24 hours
It will take Courtney 24 hours to type a 50-page paper on her own
Remark. The easiest way to solve this is to make the coefficients of one of the letters = to the same coefficient in the other equation
Set up and solve
x + y = 24
3x + 5y = 100 Multiply the first equation by 3
<u>3x + 3y = 72 </u> Subtract
2y = 28 Divide by 2
y = 28/2
y = 14 <<<<<< Answer for y
Step 2
Solve for x
x + y = 24
x + 14 = 24 Subtract 14 from both sides.
x = 24 - 14
x = 10 <<<<Answer for x
Check to see if it works.
3x + 5y = 100
3*10 + 5*14 = 100
30 + 70 = 100 Checks.
There are 10 three point question
There are 14 five point questions.
Circumference = 2 × π × r
circumference = 2 × 3.14 × 5.4
circumference = 33.912
circumference = 33.9 in²
Answer:
just go down negative 7 on the y int and that's ur starting point, then go down -1 and over 4 to the right, repeat this step 2 or 3 times then draw ur line.
