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
Anna007 [38]
2 years ago
13

ethan took a quiz with 15 questions. if he answered 3/5 of the questions correctly, how many did he get wrong?

Mathematics
2 answers:
Kryger [21]2 years ago
7 0
I love this question!  It requires careful reading!  There are multiple ways to get the right answer, so here are a couple!  The sentence tells us the fraction of the questions he got RIGHT!  To find this out you must multiply 3/5 by the total number of questions (3/5 x 15 = 9  correct questions).  You then can subtract the 9 questions from the 15 total to find out the number that were INCORRECT/WRONG.  15 - 9 = 6 incorrect questions.  Another strategy would be to find the fraction of questions Ethan missed, which is one minus the fraction he got RIGHT.  1 - 3/5 or 3/5 + ___ = 1 (5/5).  He missed 2/5 of the questions, so you can multiply 2/5 by the total to get (2/5 x 15 = 6) 6 incorrect answers.  Hope this helps!
valentina_108 [34]2 years ago
3 0
\frac{15}{1} *  \frac{3}{5} =  \frac{45}{5} = 9 
 





15-9= 6
Ethan got six questions wrong. 
You might be interested in
Taryn is shopping for a Christmas tree. At Home Depot the one she likes is $149.00 and she has a 15% off coupon. At Lowe's the o
Vitek1552 [10]

Answer:

Step-by-step explanation:

At home depot

Price of Christmas tree = $149.00

Discount = 15%

Amount discounted = 15% of $149

Amount discounted = 15/100 * $149

Amount discounted = 15 * 1.49

Amount discounted = $22.35

Amount she paid = $149-$22.35

Amount she paid = $126.65

At Lowe's:

Price of Christmas tree = $175.00

Discount = 260%

Amount discounted = 20% of $175

Amount discounted = 20/100 * $175

Amount discounted = 0.2 * 175

Amount discounted = $35

Amount she paid = $175-$35

Amount she paid at Lowe's = $140

<u><em>From the prices above, it can be seen that Home Depot has a better deal since the price after removing discount is lower than that of Lowe's.</em></u>

<u><em></em></u>

<u><em>Amount she will save will be $140 - $126.65 = $13.35</em></u>

6 0
3 years ago
if a cat would dance for 412 hours without getting tired how many hours can a total of 7 cats dance for
koban [17]
58.8 I divided 412/7 and it gave me a decimal and random numbers :(
6 0
3 years ago
Please help worth 20 points will mark brainliest
ddd [48]

Answer:

P(t)= 100t + 150

Step-by-step explanation:

If the price for 6 hours of studio time is 600 dollars, that means every hour the studio is used it costs 100 dollars. Since the fixed fee is 150 dollars, that is added to the cost of how many hours the studio is used.

I hope this helped you. If it did Brainilest is appreciated.

3 0
3 years ago
Please help me with number 4!
Mariulka [41]

Answer:

x = 20√2 and y = 20√3.

or x = 28.28 and y = 34.64 to the nearest hundredths.

Step-by-step explanation:

Take the 2 'inside' triangles. They are similar.

So we have  x / (60-40) = 40 / x

x/ 20 = 40 /x

x^2 = 800

x = √800

x = 20√2

y = √(800 + 20^2)

= √(1200)

= 20√3.

8 0
3 years ago
A chef prepared five chocolate tortes for a dinner party. The guests consumed 2 5⁄16 tortes. How many tortes are left? A. 3 11⁄1
Alona [7]
The answer is Letter b

If you subtracted 5 with 2 5/16 you will get answer
5 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me. Thnx
    11·1 answer
  • A heavy rope, 40 ft long, weighs 0.8 lb/ft and hangs over the edge of a building 110 ft high. How much work is done in pulling t
    12·1 answer
  • What is another way to infer to
    10·2 answers
  • Find the expression for h(x) f(x)=-x^2-1
    15·1 answer
  • One pizza will feed 4 people. How many pizzas are needed for 8 people?
    10·1 answer
  • What is the perimeter of a rectangle with a length of 7 3/4 inches and a width of 4 1/3 inches
    5·2 answers
  • Can someone help me with questions 56
    9·2 answers
  • Three tickets to a movie costs $37.50. If all tickets were the same price, what would be the cost of 2 tickets?
    11·2 answers
  • Answer Fast Plsssss please hellpppp me
    14·2 answers
  • How many liters each of a 35% acid solution and a 80% acid solution must be used to produce 60 liters of a 65% acid solution? (R
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!