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Marta_Voda [28]
2 years ago
14

Joan has saved 7 quarters from washing cars how many cents does Joan have?​

Mathematics
1 answer:
mash [69]2 years ago
3 0

Answer:

175 cents

Step-by-step explanation:

1 quarter is equal to 25 cents.

Since there are 7 of them,

7 times 25 cents = 175 cents

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Select all the expressions that are equivalent to .
olga55 [171]

Answer:

1. 9 - 10n  = -1 + 1/10

2. 14 - 3n = 14 - 3n

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5. I HAVE NO IDEA SO SORRY

Step-by-step explanation:

5 0
2 years ago
How do you calculate average time from a data set? These are the times: 2.22s, 2.14s, and 2.10s.
SVETLANKA909090 [29]
You would add them all and then decide them by how many numbers there are witch would be 3.



2.22. 3/6.46 =2.1533
2.14.
+2.10
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6 0
2 years ago
The population of a certain species of bird in a region after t years can be modeled by the function P(t)= 1620/1+1.15e^-0.042t
natka813 [3]

Answer:

A

Step-by-step explanation:

The function is  \frac{1620}{1+1.15e^{-0.042t}}

To find the maximum population, we need to set t towards infinity to get our answer.

So, we replace time with maximum (\infty). Let's check:

\frac{1620}{1+1.15e^{-0.042t}}\\=\frac{1620}{1+\frac{1.15}{e^{0.042t}}}\\=\frac{1620}{1+\frac{1.15}{e^{0.042(\infty)}}}\\=\frac{1620}{1+\frac{1.15}{\infty}}\\=\frac{1620}{1+0}\\=\frac{1620}{1}\\=1620

The population of birds approaches 1620 as t goes towards infinity. So we can say the max population of the species is 1620.

Correct answer is A

5 0
3 years ago
Read 2 more answers
Martha buys a surfboard that cost $405 for 40% off. How much money does she save?
alukav5142 [94]

Answer:

$162

Step-by-step explanation:

Discount = percentage discount ÷ 100 × original cost

Discount = \frac{40}{100} × $405 = $162

7 0
2 years ago
Highlight (1) Calculator
melisa1 [442]
Answer- 16
explanation- that’s what it is
4 0
2 years ago
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