Ask question

Ask question

All categories

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

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

Can somebody help me? I’m already failing :(

Yuliya22 [10]

Answer:

125

Step-by-step explanation:

f(1)= the first time (32,000)

n= 9

r= .5 (each term is being mulitplied by .5 to get the next one

We have

32,000*(.5)^(9-1)

32,000*(.5)^8

=125

5 0

2 years ago

What multiples to -52 but also adds to 24

ANTONII [103]

Answer:

-2 and 26

Step-by-step explanation:

-2*26=-52

-2+26=24

6 0

2 years ago

Sadie is saving her money to buy a new pony, which costs $600. She has already saved $75. She earns $50 per week working at the

rodikova [14]

Answer:

A

Step-by-step explanation:

5 0

2 years ago

Joe worked 12 hours and packed 32 cartons. Bob worked 25 hours and packed 64 cartons. Did Joe and Bobwork at the same rate?O YES

Bas_tet [7]

To be able to compare the rates, we will write them in fraction form.

The fraction that represents Joe's rate is:

$\frac{32}{12},$

and the fraction that represents Bob's rate is:

$\frac{64}{25}\text{.}$

Simplifying the above fractions, we get:

$\begin{gathered} \frac{32}{12}=\frac{8}{3}, \\ \frac{64}{25}=\frac{64}{25}\text{.} \end{gathered}$

Since:

$\frac{8}{3}\ne\frac{64}{25}$

then Bob and Joe did not work at the same rate.

Answer:

No, Bob and Joe did not work at the same rate.

4 0

1 year ago

Please help thanks

qwelly [4]

Answer:

x = 7 is your answer.

Step-by-step explanation:

Here is what you do:

<em>x + 16 = 4x - 5</em>

<em>-3x + 16 = -5</em>

<em>-3x = -21</em>

x = 7 is your answer.

4 0

3 years ago