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
daser333 [38]
3 years ago
9

In a survey of 400 students, 80% said they had math homework every night. Of these, 40% had writing homework every night. How ma

ny students had both math and writing every night?
A. 50
B. 128
C. 160
D. 320
Mathematics
1 answer:
natali 33 [55]3 years ago
7 0
It is D. 320 because if you add 80 and 40 togeter you get 120 then 320

You might be interested in
Given that 3x – 4y= 22<br> -<br> Find &amp; when y = -7
Liono4ka [1.6K]
<h2>Answer:</h2>

x=2

<h2><em><u>Step-by-step explanation:</u></em></h2>

<h2><em><u>3x - 4y = 22</u></em></h2><h3>3x - 4 × -7 = 22 </h3><h3>3x - (-28) = 22</h3><h3>223x + 28 = 22</h3><h3>223x = 28 - 22</h3><h3>223x = 6</h3><h3>x = 6/3</h3><h3><em><u>x = 2</u></em></h3>
6 0
2 years ago
What is 4/5 * 7/9. Ik It’s easy but I don’t feel like doing it ;)
valina [46]

Answer:

28/45

Step-by-step explanation:

Dont worry i also don't feel like doing fractions most the time they can get very annoying when you have to work with a lot of them.

7 0
2 years ago
Read 2 more answers
1/3 of 7 as a fraction
klio [65]
Hey There! Whoever we see the keyword “of”, we know that it’s multiplication Therefore we’re multiplying 1/3 and 7/1 that gives us 7/3

3 0
2 years ago
Which of the following prove that (-3) + 5 = 2? Select all that apply.
MakcuM [25]

Answer:

D

Step-by-step explanation:

You started at level ground and then went deeper which represents the negatives. After you stick a five foot pole in there it sticks up 2 feet.

7 0
3 years ago
if i have 19 friends they each want 3 slices of cake i have 38 slices how do i divide and get a simple remainder.
Salsk061 [2.6K]
38 divided by 19 than multiply by 3
3 0
3 years ago
Other questions:
  • Aunty Milie gives Simon $150 for his birthday. He invests the money in a bank at a rate of 6% per year compound interest. Calcul
    9·1 answer
  • If sin (8x-18)=cos (5x+4),what is the value of x?
    5·1 answer
  • Gracie uses 10 beads on each necklace she makes. She has 60 beads to use. How many necklaces can Gracie make?
    11·2 answers
  • Johnny reflects ∆ABC across the y axis and then again across the x axis.
    10·1 answer
  • Our car has a 15-gallon gas tank. A lower grade of gasoline costs $2.96 per gallon. The premium grade gasoline costs $3.15 per g
    6·2 answers
  • Five boxes of crackers cost 9$. At this rate, how much do 20 boxes cost?
    7·2 answers
  • 4053 x 6<br> ...........
    15·2 answers
  • Plssss help plsssssss
    8·2 answers
  • What is the center of a circle represented by the equation (x 9)2 (y−6)2=102? (−9,6) (−6,9) (6,−9) (9,−6)
    7·2 answers
  • I need help with this
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!