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xxMikexx [17]
3 years ago
6

last year fred earned $156 every week that he worked.he made a total of $4,680.how many weeks did he work

Mathematics
2 answers:
Tju [1.3M]3 years ago
8 0
30 weeks - 4680 divided by 156 is 30
yanalaym [24]3 years ago
6 0
30 weeks because
4680 \div 156  = 30
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If y varies inversely as x^2 and y=6 when x=30 what is y when x is 6
LenaWriter [7]

Answer:6/25

Step-by-step explanation:

Y varies inversely as x²

Y =k/x²

Y= 6, x = 30

Substitute the value of y and x

6 = k/30²

Make k the subject of the formula

k = 6/900

k =1/150

The equation connecting Y and x is

Y = x²/150

When x = 6

Y= 6²/150

Y= 36/150

Y= 6/25

3 0
3 years ago
Read 2 more answers
The volume of gas in a container at a constant temperature varies inversely as the pressure. If the volume is 32 cubic centimete
finlep [7]

Answer:

The new pressure is 4.27 pounds

Step-by-step explanation:

In this question, we have the volume varying inversely as the pressure;

Firstly, let's say the volume is V and the pressure is P

Mathematically;

V ∝ 1/P

Let us insert a constant of proportionality K

⇒ VP = K

Let's calculate the value of K

K = 32cm^{3} × 8 = 256 cm^{3} pounds

Now in the second scenario, pressure is unknown but we know the volume to be 60cm^{3}

Recalling;  VP = K

P = K/V = 256 cm^{3} pounds/60cm^{3} = 4.27 pounds

7 0
4 years ago
Read 2 more answers
Steven must save $240 to attend summer camp next year. He already saved $30 if you earns $14 per week how many weeks must he sav
Anarel [89]

Answer:

11 2/3

Step-by-step explanation:

240-30

210

210/18

11

3 0
3 years ago
Payton can type 75 words per minute. How many<br>words can she type in 1 hour and 23 minutes?​
Eddi Din [679]

Answer:

She can type 6,225 words in 1 hour and 23 minutes

Step-by-step explanation:

1 hour = 60 minutes so you convert the hour into minutes and add 60 + 23 to get 83. From here you just multiply 75 (words per minute) and 83 (amount of minutes) and you get 6,225

4 0
4 years ago
Out of the 860 students, 43 were out sick. What percent of the student population is ill?
Evgen [1.6K]

To express a number as a percentage, you need to write it as a ratio with denominator 100.

We know that ratios have different forms they can be written into, for example, all the following are equivalent:

\cfrac{3}{7} = \cfrac{30}{70} = \cfrac{9}{21} = \cfrac{15}{35} = \ldots

So, since 43 students out of 860 are sick, the ratio of sick students is

\cfrac{43}{860}

and we want to express this as a ratio with denominator 100, so we have

\cfrac{43}{860} = \cfrac{x}{100}

So, if we solve for x, we have

x = \cfrac{43\cdot 100}{860} = \cfrac{4300}{860} = 5

So, 5% of students is sick.

3 0
3 years ago
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