1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
madreJ [45]
3 years ago
6

Please Help!!

Mathematics
1 answer:
Mrrafil [7]3 years ago
6 0
Harry can rake the leaves in the yard 8 hours faster than his little brother Jimmy can. 
<span>If they join to work together they can complete the job in 3 hours. </span>
<span>1/x + 1/(x - 8) = 1/3 </span>
<span>3(x - 8) + 3x = x(x - 8) </span>
<span>x^2 - 14x + 24 = 0 </span>
<span>(x - 12)(x - 2) = 0 </span>
<span>Solutions: </span>
<span>x = 2 </span>
<span>x = 12 </span>
<span>Jimmy can complete the job on his own in 12 hours.</span>
You might be interested in
URGENT!! Need help can someone explain please!!!
forsale [732]

Answer:

The answer to your question is 1 = 69°

Step-by-step explanation:

To solve this problem remember that the sum of the internal angles in a triangle equals 180°.

Let the third angle of the triangle be x.

             39° + 30° + x = 180

Solve for x

             x = 180 - 39 - 30

             x = 111°

Angle x and angle 1 are supplementary so their sum equals 180°.

            111° + 1 = 180

                      1 = 180 - 111

                       1 = 69°      

5 0
3 years ago
Read 2 more answers
Ill mark brainliest !!
Solnce55 [7]

Answer:

The answer is true.

3 0
2 years ago
Read 2 more answers
10)<br>Simplify the expression.<br>6(4x + 12) – 9x - 18 - 4(-6)<br>​
aleksklad [387]

Answer:

\boxed{\bold{15x+78}}

Step By Step Explanation:

Apply Rule - (-a) = a

\bold{6\left(4x+12\right)-9x-18+4\cdot \:6}

Multiply: 4 · 6 = 24

\bold{6\left(4x+12\right)-9x-18+24}

Expand \bold{6\left(4x+12\right): \ 24x+72}

= \bold{24x+72-9x-18+24}

Simplify \bold{24x+72-9x-18+24}

= \bold{15x+78}

━ Mordancy ━

4 0
3 years ago
Z 3 - 2z 2 + 9z - 18.
aev [14]

group the 1st 2 terms and last 2 terms:

(Z63 -2z^2) + (9z-18)

factor out GCF:

z^2(z-2) + 9(z-2)

now factor the polynomial:

(z-2) (z^2+9)

5 0
3 years ago
Read 2 more answers
if you have budgeted 12% of your monthly income for groceries how much can you spend on groceries if you earn $950 bi-weekly
finlep [7]
Well if you make 950 dollars every two weeks, in a month you will have 1,900. Then take 12% of 1,900, and you will have 228 dollars to spend a month on groceries.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Write the equation of the line that passes through the points (-2,3) and (-2,5)
    6·1 answer
  • How many times 36 go into 37?
    8·1 answer
  • A farmer wants to estimate the average growth in height of his corn plants over a two week period
    8·1 answer
  • PLEASE HURRY I WILL MARK AS BRAINLIEST!!!!!
    10·2 answers
  • Please help me need to revise for a testtt!!!!
    8·2 answers
  • What is x given angle ABC~ angle DBE~ ?
    14·2 answers
  • In a capture-recapture study, 97 grizzly bears were tagged and released back into the wild. A month later, 200 bears were captur
    14·1 answer
  • Macy’s is having a one-day 25% off special. If Bryan bought $110 worth of items, what would the final bill total after applying
    12·1 answer
  • Factorise completely x^3+6x^2+3x-10
    13·2 answers
  • it's asking to write an equation in slope-intercept form for the line with slope -4 and y-intercept 7. then graph the line. plea
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!