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
Serga [27]
3 years ago
14

Erin solved the problem. 1,000-479=521 Which equation did Erin use ro check his answer?​

Mathematics
1 answer:
dimaraw [331]3 years ago
6 0

Hi there!

equation:521+479=1000..

<em><u>If your subtract 479 from 1,000, in addition form it should be the opposite..</u></em>

we also know that adding’s oppsite is subtracting and multiplyin’s opposite is dividing..

Therefore, the equation Erin used to check his answer would be 521+479=1,000..

You might be interested in
54 over 100 in simplest form
alex41 [277]
It would be 27/50
54/2 = 27
100/2 = 50
5 0
3 years ago
Read 2 more answers
Write the mixed number as an improper fraction and the improper fraction as a mixed number.
vfiekz [6]

Answer:

32/4                     7  3/4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find the derivative dy, dx for y equals the quotient of the quantity x cubed minus 5 times x and the quantity x squared minus 1.
Elza [17]
Using the quotient rule  

dy/dx  =  (x^-1) * (3x^2 -5 ) - (x^3 - 5x) * 2x
              ----------------------------------------------
                              (x^2 - 1)^2

You are correct
7 0
3 years ago
A 24 foot ladder is placed against a building at an angle of 75⁰. How far is the bottom of the ladder from the building?
yanalaym [24]
24ft is the hypotenuse, at an angle of 75<span>⁰, and we need to find the adjacent.

We use cos(), which is adjacent divided by hypotenuse.

Therefore, we can find the adjacent by doing:

25 * cos(75) = 6.47ft

Round the answer however you like.</span>
6 0
3 years ago
What is the slope of the line between (−4, 4) and (−1, −2)? (1 point)
SCORPION-xisa [38]
The slope of the line is -2.



3 0
3 years ago
Read 2 more answers
Other questions:
  • At one farmer’s market, bananas cost $0.80 per pound. At another farmer’s market, bananas are sold in 5-pound bags for $4.50 per
    13·1 answer
  • What are the coordinates of the image of Q for a dilation with center (0, 0) and scale factor 1/2?
    9·1 answer
  • Long division for 93 ÷ 3
    5·1 answer
  • Last week, 108 cars received parking violations in the main university parking lot. Of these, 27 had unpaid parking tickets from
    5·1 answer
  • Need help ASAP!!!!!!!!
    5·1 answer
  • What is the diameter of this circle if the circumference is 30 x inches?
    10·1 answer
  • A sea lion dove from the water's surface at sea level to an altitude of −216.12 meters in 2.4 minutes. What is the average chang
    10·1 answer
  • Why are the solutions to the proportions StartFraction 40 over 8 EndFraction = StartFraction x over 10 EndFraction and StartFrac
    7·2 answers
  • X+y&lt;-1jjjjjjjjjjhhhjjjjjj
    7·1 answer
  • Sally bought two shirts that cost $6.99 each. The sales tax rate was 7%. What was the total amount Sally paid?Question 3 options
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!