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Art [367]
2 years ago
7

2. The difference between two numbers is 22. Twice the smaller number exceeds the larger number by 17. What are the two numbers?

Mathematics
1 answer:
drek231 [11]2 years ago
8 0

Answer:61 and 39

Step-by-step explanation:

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If a population of dolphins increases at a constant rate of 1.5% every year for 20 years what will be the total percentage incre
hichkok12 [17]

Answer:

The population increased by 34.69% over 20 years.

Step-by-step explanation:

It is given that the population of dolphins increases at a constant rate of 1.5% every year for 20 years.

Formula for population increase:

P=a(1+r)^t

where, a is initial population, r is growth rate and t is time in years.

If the population of dolphins increases at a constant rate of 1.5% every year for 20 years, then the population after 20 years is

P=a(1+0.015)^{20}

P=a(1.015)^{20}

P=1.346855a

Where, a is the initial population.

The total percentage increase over the 20 years is

\% change=\frac{P-a}{a}\times 100

where, P is population after 20 years and a is initial amount.

\% change=\frac{1.346855a-a}{a}\times 100

\% change=\frac{0.346855a}{a}\times 100

\% change=0.346855\times 100

\% change=34.6855

\% change\approx 34.69

Therefore the population increased by 34.69% over 20 years.

6 0
2 years ago
Answer for 5(-x +2) + 3x +5 = 11
crimeas [40]

Answer:

x = 2

Step-by-step explanation:

This is what I got based on my answers.

7 0
3 years ago
Carlotta subscribes to the HotBurn music service. She can download no more than 12 song files per week. Carlotta has already dow
UNO [17]

Answer:

Inequality: x+10\leq 12

Inequality solved: x\leq 2

The graph is attached.

Step-by-step explanation:

You need to remember the meaning of the inequalities symbols:

: Less than.

> : Greater than.

\leq : Less than or equal to.

\geq : Greater than or equal to.

Let be "x" the number of more songs Carlotta can download.

According to the information given in the exercise, she can download no more than 12 song files per week. This indicates that you must use the symbol \leq.

Since she has already downloaded 10 song files this week, you can write the following inequality that represents this situation:

x+10\leq 12

In order to solve it, you must subtract 10 from both sides:

x+10-10\leq 12-10\\\\x\leq 2

Plot this result on a number line.

Since the symbol of the inequality is \leq, the dot must be filled (Observe the number line attached).

8 0
3 years ago
I NEED HELP WITH THIS ASAP!! Please!
ziro4ka [17]

Answer:

f(g(x)) = 3(2x^3 -2)^2 - 4x + 2, and f(g(3)) = 3[2(3)^3 -2]^2 -4*3 -2 = 8102

Step-by-step explanation:

because for f(g(x)), the g(x) is the input of f(x), so put 2x^3 -2 into 3x^2 -4x +2, and you will get f(g(x)). because g(3) is the input of f(x), so find g(3) first, the answer is 52, and then put it back into f(x) which will be f(52) =[3(52)^2 - 4(3) +2], then the answer should be 8102.

8 0
3 years ago
coffee which normally sells for $2.19 per pound is now on sale for 5.49 for 3 lb how much is safe per pound by buying the three
N76 [4]
What are the answer choices.??????????
3 0
2 years ago
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