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
vladimir2022 [97]
3 years ago
13

Need help solving for X

Mathematics
2 answers:
AlladinOne [14]3 years ago
7 0
You need to cross multiply 
560=350+35x 
210=35x
x=6
hope this helped
frez [133]3 years ago
3 0
10 / 10+x = 35 / 56
560 = 350 + 35x
35x = 560 - 350
35x = 210
x = 210/35
x = 6

So, your final answer is 6

Hope this helps!
You might be interested in
Many had 3/4 of his paper written. He wrote another 1/8 of the paper today. What fraction of the paper does he have left to writ
Masteriza [31]

Answer:

1/8

Step-by-step explanation:

3/4=6/8

6/8+1/8=7/8

because the question asks how much is left, we should subtract 7/8 from 1, leaving 1/8.

yaaay.

6 0
3 years ago
If x+y=12 and xy=15,find the value of (x^2+y^2)
Mice21 [21]

Answer:  x^2+y^2=\dfrac{105\pm 18\sqrt6}{2}

<u>Step-by-step explanation:</u>

EQ1:  x + y = 12     --> x = 12 - y

EQ2:  xy = 15      

Substitute x = 12-y into EQ2 to solve for y:

(12 - y)y = 15

12y - y² = 15

0 = y² - 12y + 15

    ↓     ↓         ↓

  a=1   b= -12   c=15

.\  y=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}\\\\\\.\quad =\dfrac{-(-12)\pm \sqrt{(-12)^2-4(1)(15)}}{2(1)}\\\\\\.\quad =\dfrac{12\pm \sqrt{144-120}}{2}\\\\\\.\quad =\dfrac{12\pm \sqrt{24}}{2}\\\\\\.\quad =\dfrac{12\pm 2\sqrt{6}}{2}\\\\\\.\quad =6\pm \sqrt{6}

Now, let's solve for x:

xy=15\\\\x(6\pm\sqrt6)=15\\\\x=\dfrac{15}{6\pm\sqrt6}\\\\\\x=\dfrac{15}{6\pm\sqrt6}\bigg(\dfrac{6\pm\sqrt6}{6\pm\sqrt6}\bigg)=\dfrac{6\pm \sqrt6}{2}

Lastly, find x² + y² :

y^2=(6\pm \sqrt6)^2\quad \rightarrow \quad y^2=36\pm 12\sqrt6 +6\quad \rightarrow \quad y^2=42\pm 12\sqrt6

x^2=\bigg(\dfrac{6\pm \sqrt6}{2}\bigg)^2\quad \rightarrow \quad x^2=\dfrac{42\pm 12\sqrt6}{4}\quad \rightarrow \quad x^2=\dfrac{21\pm 6\sqrt6}{2}

                                                                                 

x^2+y^2=\dfrac{21\pm 6\sqrt6}{2}+42\pm 12\sqrt6\\\\\\.\qquad \quad = \dfrac{21\pm 6\sqrt6}{2}+\dfrac{84\pm 24\sqrt6}{2}\\\\\\. \qquad \quad = \dfrac{105\pm 18\sqrt6}{2}

5 0
3 years ago
The area (in square inches) of a rectangle is given by the polynomial function A(x) = x^2+ 10x + 24. If the width of the rectang
ratelena [41]

Answer:21

Step-by-step explanation:

4 0
3 years ago
Tara has 39 red pens she has to get 125 pens how many more pens does she need?
Crank

Answer: She needs 86 more pens

Step-by-step explanation: She starts off with 39 pens and she needs to get to 125 so you would subtract 39 from 125 and you would find the answer to how many more she needs.

4 0
3 years ago
Read 2 more answers
The lengths of two sides of a triangle are shown below:
Feliz [49]

Answer:

Part A) (3x^2 - 6x - 10) + (5x^2 + 9x - 8 ) =8x^2 + 3x - 18

Part B) (10x^2 - x - 3) - (8x^2+3x-18) = 2x^2 -4x+15

3 0
3 years ago
Other questions:
  • What is twice 2^30 Write using exponents
    14·1 answer
  • Marty teaches music in his community. He teaches three classes a day, and each class has fewer than 8 students. If Marty teaches
    9·2 answers
  • A circle has a diameter with endpoints (-7,-1) and (-5,-9) what is the equation of the circle
    11·1 answer
  • PLS HELP ME !!!!!!!!!!!!
    12·1 answer
  • I asked this question yesterday, but no one answered, and i really need help! it would be nice if u halped :) thank you
    14·1 answer
  • How do you add fractions? 8 1/2 + 7 1/4
    14·1 answer
  • What is the GCF of 2ab + 8b?
    14·2 answers
  • C + 5 = 8<br> all explanations
    9·2 answers
  • For the given right triangle, find the value of x to the nearest tenth​
    6·1 answer
  • 2x+7=16<br> as a improper fraction simplified
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!