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
igor_vitrenko [27]
2 years ago
11

Can u guys help me with this problem

Mathematics
1 answer:
netineya [11]2 years ago
8 0

Answer:

-0.7 or -\frac{7}{10}

Step-by-step explanation:

-0.75-(-\frac{2}{5})+0.4+(-\frac{3}{4})

The opposite of -\frac{2}{5} is \frac{2}{5}

-0.75 + \frac{2}{5} +0.4 - \frac{3}{4}

Convert decimal number −0.75 to fraction -\frac{75}{100}.

​Reduce the fraction-\frac{75}{100} to lowest terms by extracting and canceling out 25.

-\frac{3}{4} + \frac{2}{5}+0.4-\frac{3}{4}

Least common multiple of 4 and 5 is 20. Convert -\frac{3}{4} and \frac{2}{5} to fractions with denominator 20.

-\frac{15}{20}+ \frac{8}{20} +0.4 - \frac{3}{4}

Since -\frac{15}{20} and \frac{8}{20} have the same denominator, add them by adding their numerators.

\frac{-15 +8}{20} +0.4-\frac{3}{4}

Add -15 and 8 to get -7

-\frac{7}{20}+0.4-\frac{3}{4}

Convert decimal number 0.4 to fraction \frac{4}{10}. Reduce the fraction \frac{4}{10} to lowest terms by extracting and canceling out 2.

-\frac{7}{20}+\frac{2}{5}-\frac{3}{4}

Least common multiple of 20 and 5 is 20. Convert -\frac{7}{20} and \frac{2}{5} to fractions with denominator 20.

-\frac{7}{20}+\frac{8}{20}-\frac{3}{4}

Since -\frac{7}{20} and \frac{8}{20} have the same denominator, add them by adding their numerators.

20-7+8-\frac{3}{4}

Add -7 and 8 to get 1.

\frac{1}{20}-\frac{3}{4}

Least common multiple of 20 and 4 is 20. Convert \frac{1}{20} and \frac{3}{4} to fractions with denominator 20.

\frac{1}{20}-\frac{15}{20}

Since \frac{1}{20} and \frac{15}{20} have the same denominator, subtract them by subtracting their numerators.

\frac{1}{20}-15

Subtract 15 from 1 to get -14.

20-14

Reduce the fraction -\frac{14}{20} to lowest terms by extracting and canceling out 2.

-\frac{7}{10} or -0.7

Hope this helps! Brainliest would be much appreciated! Have a great day! :)

You might be interested in
Find the area of the following figure.
Rus_ich [418]

Answer:

A. 312 cm²

Step-by-step explanation:

The figure compromises of a rectangle and 2 equal triangles.

Area of the figure = area of the rectangle + area of the two triangles

Area = L*W + 2(½*b*h)

Where,

L = 16 cm

W = 12 cm

b = 12 cm

h = 10 cm

Plug in the values

Area = 16*12 + 2(½*12*10)

= 192 + 120

= 312 cm²

7 0
3 years ago
The answer to a system is a(n)<br> A) point<br> B) line<br> C) two points<br> D) equation
love history [14]
I think the answer is D ?
3 0
2 years ago
Read 2 more answers
The monthly income of Ram is Rs 40,000. If he paid Rs 8,000 as income tax. Find the rate of income tax.​
frosja888 [35]

Hello!

Rate of income tax = Tax paid / Monthly income

⇒ Rate = 8,000 / 40,000

⇒ Rate = 0.2

⇒ Rate = 20%

∴ The rate of income tax is 20%.

5 0
2 years ago
A deli sells 2 hot dogs for $2.50. What is the constant of proportionality of dollars per hot dog?
attashe74 [19]

Answer:

$1.25 per hot dog

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Express 533 base 6 to a in base three​
katen-ka-za [31]

Answer:

21110

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • A function is created to represent the miles per gallon your car gets. What restrictions would be made to the domain?. a. The do
    9·2 answers
  • Find the missing number <br><br>5,_,10,12 1/2<br><br>11.5,9.4,_,5.2<br><br>40,37 1/3,36,
    13·1 answer
  • Help me please this is donr tomorrow and if i don't finish it my teacher will be so mad
    10·1 answer
  • Someone help me, please
    13·1 answer
  • Lucia surveyed the students in her class and made a dot plot of the results. What question could Lucia have asked?
    6·1 answer
  • A taxi cab charges $0.55 per mile in addition to a $1.75 flat rate fee. Susie has $10 to spend on a taxi cab ride. The taxi driv
    9·1 answer
  • Hi, i want know how to change decimals into fraction.
    15·1 answer
  • Si un proyectil asciende verticalmente, y después de 3 segundos alcanza su altura máxima, calcule la velocidad que lleva a la mi
    9·1 answer
  • A person came to work at 8:30 am, went out at 11:45 am, had lunch, came in at 12:30 pm, and left at 5:15 pm. How many hours did
    8·1 answer
  • If pie is round then does that mean its also pi(3.14)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!