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zavuch27 [327]
3 years ago
13

Please help will mark Brainly

Mathematics
1 answer:
iris [78.8K]3 years ago
8 0
The answer is D. For every week, she is giving away 10 pencils which means Mrs. Doyal is removing pencils from the 150 pencils she already has by “-10x”. Hope this helps c:
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How can you represent an decrease in temperature using an addition equation? Explain!
kap26 [50]
Hm good question. Maybe you can measure the temperature in a place and measure another temperature in a other place and add it together.
6 0
3 years ago
Suppose that the concentration of a bacteria sample is 60 comma 000 bacteria per milliliter. If the concentration triples in 4 ​
Elodia [21]

Answer:

1.932 days (or approximatelly 1 day, 22 hours and 22 minutes)

Step-by-step explanation:

The inicial concentration is 60,000, and this concentration triples every 4 days, so we can write the equation:

P = Po * r^t

where P is the final concentration after t periods of 4 days, Po is the inicial concentration and r is the ratio that the concentration increases (r = 3)

Then, we have that:

102000 = 60000 * 3^t

3^t = 102/60 = 1.7

log(3^t) = log(1.7)

t*log(3) = log(1.7)

t = log(1.7)/log(3) = 0.483

so the number of days that will take is 4*0.483 = 1.932 days (or approximatelly 1 day, 22 hours and 22 minutes)

3 0
3 years ago
For income tax purposes, a man uses a method
zaharov [31]

Answer:

The answer is 5000 dollars

Step-by-step explanation:

8 0
3 years ago
Here you go amiragumbs2
Simora [160]
Umm , what is this for? do you need help on anything or? lol
5 0
3 years ago
The measure of each interior angle in a regular quadrilateral is ___°.
gayaneshka [121]

Answer:

if it is a regular quadrilateral and each angle is equal then its 90 degrees

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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