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
Mars2501 [29]
3 years ago
14

10/7=x/5 proportion

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
4 0
\boxed{\boxed{\text{ if } \dfrac{a}{b}=\dfrac{c}{d} \text{ then }a\times d=b\times c}}

\dfrac{10}{7}=\dfrac{x}{5}\\\\10\times5=7\times x\\50=7x\\7x=50\\\\\boxed{x=\dfrac{50}{7}}
You might be interested in
Precentage equivalent to 7/8
Maurinko [17]

Answer:

87.5 %

Step-by-step explanation:

Set up a ratio:

7/8 = x/100

Cross multiply to solve for x:

8x = 700

x = 87.5

6 0
3 years ago
Read 2 more answers
The dog in the pet shop are fed at 8:30 a.m and 5:30 p.m
Feliz [49]
Your answer would be 9 hours 
4 0
3 years ago
Read 2 more answers
How can I factorise (2x cubed - 5x + 3) ?
PilotLPTM [1.2K]
2x^3-5x+3=2x^3-2x-3x+3\\\\=2x(x^2-1)-3(x-1)\\\\=2x\underbrace{(x^2-1^2)}_{use\ (*)}-3(x-1)\ \ \ |(*)\ a^2-b^2=(a-b)(a+b)\\\\=2x\underbrace{(x-1)}_{(**)}(x+1)-3\underbrace{(x-1)}_{(**)}\\\\=(x-1)[2x(x+1)-3]\\\\=(x-1)\underbrace{(2x^2+2x-3)}_{(***)}\\\\(***)\ 2x^2+2x-3\to a=2;\ b=2;\ c=-3\\\\x=\frac{b^2\pm\sqrt{b^2-4ac}}{2a}

therefore\\x=\frac{-2\pm\sqrt{2^2-4(2)(-3)}}{2(2)}=\frac{-2\pm\sqrt{4+24}}{4}=\frac{-2\pm\sqrt{28}}{4}=\frac{-2\pm\sqrt{4\cdot7}}{4}=\frac{-2\pm2\sqrt7}{4}\\\\=\frac{-1\pm\sqrt7}{2}\\\\so,\ the\ answer:\\\\(x-1)\cdot2\left(x-\frac{-1-\sqrt7}{2}\right)\left(x-\frac{-1+\sqrt7}{2}\right)\\\\=\boxed{(x-1)(2x+1+\sqrt7)\left(x+\frac{1-\sqrt7}{2}\right)}=\boxed{\frac{1}{2}(x-1)(2x+1+\sqrt7)(2x+1-\sqrt7)}
7 0
3 years ago
Read 2 more answers
Find the slope of the line that passes trough (66,68) and (21,-4)​
Georgia [21]

Answer:

8/5

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-4-68)/(21-66)

m=-72/-45

simplify

m=8/5

7 0
3 years ago
A study indicated that residents of manchester wasted 2695 gallons of water this tear. That is 50% less than last year . How man
Alenkasestr [34]

Answer:

5390 gallons of water was wasted by the city's residents last year.

Step-by-step explanation:

Let x denotes gallons of water wasted by the city's residents last year.

Gallons of water wasted by the city's residents this year = 2695 gallons

This is 50% less than last year.

Therefore,

x-\frac{50}{100}x=2695\\\\\frac{50}{100}x=2695\\\\\frac{x}{2} =2695\\\\x=2(2695)

x=5390 gallons

So, 5390 gallons of water was wasted by the city's residents last year.

7 0
3 years ago
Other questions:
  • A fair coin is tossed 4 times. find the probability of obtaining exactly 2 heads
    14·1 answer
  • 51. Q(3, 9), P(-1,5)<br> find the coordinates of the missing endpoint if P is the midpoint of NQ
    15·1 answer
  • Determine whether the lines given in each box are parallel, perpendicular, or neither
    9·1 answer
  • Every integer is _______number? an irrational , a natural , a whole , a rational.
    7·1 answer
  • Which measure is greater six feet or two meters
    5·1 answer
  • 2x10=<br> is equal to what ?
    12·2 answers
  • X = y - 3
    15·1 answer
  • The base diameter and the height of a cone are both
    11·1 answer
  • The odds of winning a goldfish toss game are 1:49. The probability of winning a claw game is 30%. Which game gives you a better
    8·1 answer
  • What is sin B?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!