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ozzi
3 years ago
5

How to do order of operations and evaluating expressions

Mathematics
2 answers:
Reil [10]3 years ago
7 0
PEMDAS

Parentheses, exponents, multiplication, division, addition, subtraction.
Andreas93 [3]3 years ago
4 0
Order of operations is parenthesis first then multiplicate and divide then add and subtract
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UNTUU HULLUM

Overfishing occurs when more fish are removed from an ecosystem than can be maintained by the population,

Overfishing can lead to significant population declines in economically important species. The passage describes

additional impacts of overfishing on populations.

pressure affects

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4 0
3 years ago
There are 1 1/2 cups of flour and 2 eggs. How would you write the ratio that compares the cups of flour to eggs?
MArishka [77]

Answer:

1 1/2 to 2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The percent decrease of an item that dropped in price from $50 to $43 is​
frez [133]

Answer:

14%

Step-by-step explanation:

The item dropped from $50 to $43 .

Therefore,

Decrease = $50 - $43

= $7

To get the % decrease, divide the decrease by the initial price and multiply the result by 100%

That’s

$7/$50 x 100%

$0.14 x 100%

= 14%

The price of the item decreased by 14%

5 0
3 years ago
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CAN SOMEONE PLEASE HELP ME ASAP PLEASEEEE!!!​
Rom4ik [11]

Answer:

11.4

Step-by-step explanation:

So we know that Triangle ACB is similar to Triangle EFD.

This means that their sides are proportional to each other.

We want to find x or side AB. To do so, we can set up a proportion.

The proportional side to AB is ED. Let's also use BC since we know its value. The proportional side to BC is DF. Thus:

\frac{AB}{ED}=\frac{BC}{DF}

Substitute x for AB, 3.8 for Ed, 15 for BC, and 5 for DF. Thus:

\frac{x}{3.8}=\frac{15}{5}

Reduce the right:

\frac{x}{3.8}=\frac{3}{1}

Cross multiply:

x=11.4

So, the value of x is 11.4

And we're done!

7 0
3 years ago
The concentration C (in mg/dl), of a certain antibiotic in a patient's bloodstream is given by C(t)=50 t /(t^2 + 25) where t is
marishachu [46]
Given that the concentration has been modeled by the formula:
C(t)=50t/(t^2+25)
where:
t is time in hours.
The concentration after 5 hours will be given by:
t= 5 hours 
plugging the value in the equation we get:
C(5)=(50(5))/(5^2+25)
simplifying the above we get:
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Answer: 5 mg/dl
8 0
3 years ago
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