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saul85 [17]
2 years ago
6

Kristen worked 45 hours last week and made $9.25 per hour. Then she babysat her cousins from Friday to Sunday and made $50.00 pe

r day. How much money did Kristen make?
A $416.25
B $462.50
C $566.25
D $150.00
Mathematics
1 answer:
Fantom [35]2 years ago
4 0

Answer:c

Step-by-step explanation:45x9.25=416.25. 50x3=150. 416.25+150=566.25

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I need help with these questions, thanks!
kifflom [539]

Answer:

????

Step-by-step explanation:

number 1 could be 2 different answers

7 0
2 years ago
A pond has 150 fish and the population decreases by 8% each day. How many days before there are 30 fish
nlexa [21]

Answer:

19 days

Step-by-step explanation:

Given

a = 150 --- initial

r = 8\% -- rate

Required

Days when the fish gets to 30

The function is exponential and as such it follows;

y = ab^x

Where x represents the number of days and y the number of fishes

Because the fishes decreases;

b = 1 - r

So, we have:

b = 1 - 8\%

Express as decimal

b = 1 - 0.08

b = 0.92

In y = ab^x

a =150

y = 30

b = 0.92

So, we have:

30 = 150 * 0.92^x

Divide both sides by 150

0.2 = 0.92^x

Take log of both sides

log(0.2) = log(0.92^x)

Apply law of logarithm

log(0.2) = x\ log(0.92)

Make x the subject

x = \frac{log(0.2)}{log(0.92)}

x = \frac{-0.6990}{-0.0362}

x = 19.309

x \approx 19

<em>Hence, it takes approximately 19 days</em>

3 0
2 years ago
Simplify <br><br>1/4 (8 m-4 n) + 1/3 (6 m+ 3 n).<br><br>answers<br><br>-4m<br><br>1/4m<br><br>4m​
hammer [34]
1/4(8m - 4n) + 1/3(6m + 3n)=

Distribute the fractions through the parentheses

2m - n + 2m + n =

Combine like terms

2m + 2m - n + n = 4m

The answer is 4m
3 0
2 years ago
What does magnitude mean in this question???
zhannawk [14.2K]
Magnitude - 1. The great size or extent of something; great importance. 2. Size. 3. The degree of brightness of a star.

- via Google

It more than likely means size.
5 0
3 years ago
Question 3 Unsaved
sashaice [31]
87.4 people per square mile
3 0
3 years ago
Read 2 more answers
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