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Rina8888 [55]
2 years ago
13

Tom works at an aquarium shop cleaning reef tanks. His job is to drain the tank. How much water is initally in

Mathematics
1 answer:
insens350 [35]2 years ago
5 0
Answer is 175

_________
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A group of 18 people ordered soup and sandwiches for lunch. Each person in the group either ordered one soup or one sandwich . T
kkurt [141]
Let's say a = number of ordered soups, b = number of ordered sandwiches.

Then 4.5a + 7.75b = 113.50, and a and b are integers between 0 and 18 inclusive.

How do we tackle this? If all ordered soup, the cost would be $81, so we'll have at least 4 sandwiches. If all ordered sandwich, the cost would be $139.5, so at most 15 sandwiches were ordered. You also know an even number of sandwiches was ordered, to let the price end at 50 cent.

If you brute-force from 4,6,8,10,12 to 14 sandwiches, you find the answer at 10 sandwiches and 8 soups.

10*7.75 + 8*4.50 = 113.50


8 0
3 years ago
A biologist is studying the exponential growth of a colony of bacterial cells. The table gives the
leonid [27]

The exponential function that represents the number of cells present at x hours is y = 100(2)ˣ

<h3>What is an exponential function?</h3>

An exponential function is in the form:

y = abˣ

Where a is the initial value and b is the multiplication factor.

Let y represent the number of cells after x hours.

From the table, at point (0, 100):

100 = ab⁰

a = 100

At point (1, 200):

200 = 100b

b = 2

The exponential function is y = 100(2)ˣ

Find out more on exponential function at: brainly.com/question/12940982

3 0
2 years ago
Which functions graph has a period of 8 and reaches a maximum height of 1 if at least one full period is graphed
faltersainse [42]

Answer: y= -4cos (pi/4x)-3

Step-by-step explanation:

3 0
3 years ago
arun had 50 rupees if he had spent 3 by 5 of his money on an alarm clock how much money is he left with him
Snowcat [4.5K]

Answer:

total money=rupees 50

3/5 of 50= rupees 30

money he spent = rupees 30

money he's left with =50-30=20

<em>mark this as brainliest!!!!</em>

<em>pls</em><em> </em><em>follow</em><em> </em><em>me</em><em>!</em><em>!</em>

4 0
3 years ago
Read 2 more answers
PLEASE HELP ME ITS DUE IN LIKE 7 mins
Nookie1986 [14]

Answer:

919,797.64

Step-by-step explanation:

1 82100

2 84152.5

3 86256.3125

4 88412.72031

5 90623.03832

6 92888.61428

7 95210.82964

8 97591.10038

9 100030.8779

10 102531.6498

total = 919,797.64

3 0
3 years ago
Read 2 more answers
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