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
Afina-wow [57]
3 years ago
11

What is Thuy’s error?

Mathematics
2 answers:
tia_tia [17]3 years ago
8 0

Answer:

number b

Step-by-step explanation:

thuy should have written the ratio as 30/39

Gekata [30.6K]3 years ago
3 0
They should me number 29’
You might be interested in
On a number line, the coordinates of A, B, C, and Dare -6, -2, 3, and 7, respectively. Find
den301095 [7]

Answer:

9: not congruent AB=-8 and CD=10

10: not congruent AC=-3 and BD=5

11: congruent BC=1 and AD=1

5 0
3 years ago
A. -5<br> B. 4<br> C. -4<br> D. 5
Nostrana [21]
The answer is D. In the function y=4/(x-5), A value of 5 would make the denominator 0. This is undefined, so 5 is excluded.
4 0
3 years ago
A coat that usually costs $120.00 is marked 1/3 off. What is the sale price of the coat?
dedylja [7]

If the coat is 120$ then 1/3 is taken off it would be 80$

Step-by-step explanation:

1/3 of 120 is 40. 40x 3 is 120.

7 0
3 years ago
Read 2 more answers
When Rafael emptied his pockets, e found he had a total of $3.50 in quarters and nickels. If he had 8 more quarters that nickels
jasenka [17]
You can use systems of equations for this one.

We are going to use 'q' as the number of quarters Rafael had,
and 'n' as the number of nickels Rafael had.


You can write the first equation like this:
3.50=0.05n+0.25q
This says that however many 5 cent nickels he had, and however many
25 cent quarters he had, all added up to value $3.50.
Our second equation is this:
q=n+8
This says that Rafael had 8 more nickels that he had quarters.

We can now use substitution to solve our system.

We can rewrite our first equation from:
3.50=0.05n+0.25q
to:
3.50=0.05n+0.25(n+8)

From here, simply solve using PEMDAS.

3.50=0.05n+0.25(n+8)     --Distribute 0.25 to the n and the 8
3.50=0.05n+0.25n+2     --Subtract 2 from both sides
1.50=0.05n+0.25n     --Combine like terms
1.50=0.30n     --Divide both sides by 0.30
5=n     --This is how many NICKELS Rafael has.

We now know how many nickels he has, but the question is asking us
how many quarters he has.

Simply substitute our now-known value of n into either of our previous
equations (3.50=0.05n+0.25q or q=n+8) and solve.

We now know that Rafael had 13 quarters.

To check, just substitute our known values for our variables and solve.
If both sides of our equations are equal, then you know that you have
yourself a correct answer.

Happy math-ing :)
5 0
3 years ago
Can someone please help me with this question?
xz_007 [3.2K]
Uh oh speggego's im telling teacher lol
3 0
3 years ago
Other questions:
  • I need help on this question
    15·2 answers
  • Please help my friend
    15·1 answer
  • I need help with this 50 points
    6·2 answers
  • How much money should be deposited today in an account that earns 5.5% compounded monthly so that it will accumulate to $12,000
    5·2 answers
  • 1 2.5n + 3.5p = 825.5
    11·1 answer
  • The waiter made $5 per hour plus twenty percent of his table’s bills in tips. If he worked for 5 hours and the total of his tabl
    15·1 answer
  • find the absolute maximum and the absolute minimum of the given function on the given interval f(x)=xe^x/2 on [-3,1]
    6·2 answers
  • Cuál es el resultado de 1/2 + 1/4 + 0.25​
    12·1 answer
  • Solve for Y.<br><br> - 140 = 18 + 4 ( 5y - 2 )<br><br> y =
    7·1 answer
  • Heyyyyyyyyyyyyyyyyyyyyyyyyyyyy
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!