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
Natalija [7]
3 years ago
13

Can someone explain how to do this from step by step in order to get marked.

Mathematics
1 answer:
ivanzaharov [21]3 years ago
4 0

Step-by-step explanation:

First, convert the mixed fraction into an improper fraction:

1\dfrac{2}{5} = \dfrac{7}{5}

Rewrite 2 as 2/1 and then cross-multiply to combine:

\dfrac{2}{1} - \dfrac{7}{5} = \dfrac{(2)(5) - (7)(1)}{(1)(5)} = \dfrac{10 - 7}{5} = \dfrac{3}{5}

You might be interested in
If x varies inversely as the square of y and if x=3 when y=-1, what is the value of x when y =3
lyudmila [28]

Answer:

x would be (1/3) when y = 3.

Step-by-step explanation:

The question states that x varies "inversely" as y^2. In other words, there is a non-zero number a (a constant) such that:

\displaystyle x = \frac{a}{y^2}.

The challenging part is to find the value of a in this equation.

Given that x = 3 when y = -1, replace the x in this equation with 3 and y with (-1). This equation should still be valid:

\displaystyle 3 = \frac{a}{(-1)^{2}}.

Solve for a:

a = 3 \times (-1)^2 = 3.

Hence, the relation between x and y becomes:

\displaystyle x = \frac{3}{y^2}.

Find the value of x when y = 3 by replacing the y in this equation with 3.

\displaystyle x = \frac{3}{3^2} = \frac{1}{3}.

In other words, the value of x would be \displaystyle \frac{1}{3} when y = 3.

7 0
3 years ago
HELP ASAP!! Identify the least common multiple of x^2 + 7x + 6 and x^2 − 3x − 4.
vesna_86 [32]

(x+1)(x+6)(x-4)

The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.

Hope This Helps & Good Luck

3 0
4 years ago
Read 2 more answers
The difference of a number and 6is the same as 5 times
leva [86]

Answer:

let difference be x

Step-by-step explanation:

you can solve for x by keeping the 2 statesments as conditions.

then you solve for both equations together by adding subtracting or multiplying.

eg: let x be the number.

the. proceed with conditions as equations

then solve

then your answer is here

5 0
2 years ago
Each year, the Department of Water Works measures the chloride concentration level in the water. The first year they found the
sergij07 [2.7K]

Answer:

Step-by-step explanation:

8 0
3 years ago
The fourth-grade students at Harvest School make up 0.3 of all students at the school. Witch fraction is equivalent to 0.3? -Zya
Leni [432]
3/10 or three tenths
4 0
3 years ago
Read 2 more answers
Other questions:
  • Round 285 to the nearest 10 and 100
    15·2 answers
  • How do i write an algebraic expression for
    11·1 answer
  • at a concert two fifths of the people were men there were three times as many women as children if their 45 more men than childr
    7·1 answer
  • What is 13,406 word form
    6·1 answer
  • Please help :)))))))m)))e
    15·2 answers
  • Help i gotta get it turned in soon​
    10·1 answer
  • After his initial reaction, Mr. Evil has some time to think. He calls you on the phone with a new plan. “OK,” he says. “I don’t
    14·1 answer
  • I need help now use quadratic formula nowwwwwww please
    12·1 answer
  • A savings account appreciates 1.5% each month. If the initial balance is $50,000, what would the total balance be after 36 month
    13·1 answer
  • Which expression is equivalent to 4÷147
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!