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2 years ago

Find the rate of money collected per sweatshirt sold.

Mathematics

2 answers:

Vera_Pavlovna [14]2 years ago

8 0

5 100 8 160 9. 12 240

Vika [28.1K]2 years ago

8 0

Answer:

+20

Step-by-step explanation:

I added 20 dollars per sweatshirt. I wasn't sure if you wanted me to fill in the blanks or not, but :

5 sweat shirts is 100

8 is 160

and the 180 one is 9 sweatshirts

while the last one is 240.

The pattern makes sense in the context!!

I hope this makes sense!!

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The length of time of the school field day was decreased

Tju [1.3M]

18% because take the first digits of each number and put them together lol

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2 years ago

THIS QUESTION IS WORTH 15 POINTS

ikadub [295]

Answer:

3.7

This means that the answer is past the 3 point on the number line and 3 tick marks before the 4 point.

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2 years ago

Scientists have discovered a vaccine for a debilitating disease. This year there were 570,000 reported new cases of the disease

Ket [755]

Answer: There are approximately 853827 new cases in 6 years.

Step-by-step explanation:

Since we have given that

Initial population = 570000

Rate at which population decreases is given by

$\frac{2}{3}$

Now,

First year =570000

Second year is given by

$570000\times (\frac{1}{3})$

Third year is given by

$570000(\frac{1}{3})^2$

so, there is common ratio ,

it becomes geometric progression, as there is exponential decline.

so,

$570000,570000\times \frac{1}{3},570000\times( \frac{1}{3})^2,......,570000\times (\frac{1}{3})^6$

a=570000

common ratio is given by

$r=\frac{a_2}{a_1}=\frac{1}{3}$

number of terms = 6

Sum of terms will be given by

$S_n=\frac{a(1-r^n)}{(1-r)}$

We'll put this value in this formula,

$S_6=\frac{570000(1-(\frac{1}{3})^6}{(1-\frac{1}{3})}\\\\=853827.16$

So, there are approximately 853827 new cases in 6 years.

6 0

2 years ago

Melania has two jobs. During the day she works as an office clerk, and in the evening she works as a cashier. her office job pay

bulgar [2K]

Lets x = # of hours Melania  works at <span>office clerk
and y = </span># of hours Melania  works as a <span>cashier

x + y = 38 so x = 38 - y
13x + 9.25y = 434

substitute </span> x = 38 - y into 13x + 9.25y = 434

13x + 9.25y = 434
13(38 - y) + 9.25y = 434
494 - 13y + 9.25y = 434
-3.75y = -60
y = 16
x = 38 - y so x = 38 - 16 = 22

answer
Melania  works at office clerk = 22 hours
Melania  works as a cashier = 16 hours

7 0

2 years ago

Is 9/20 closer to 0 , 1/2 or 1

larisa [96]

Answer:

1/2

Step-by-step explanation:

1/2=10/20

8 0

2 years ago