Question 4Solve.

4(a + 3) = 18 – 2(3 – 2a)

–3

–1

all real numbers

no solution

Question 9

Kersha has two jobs. During the day she works as an office clerk, and in the evening she works as a cashier. Her office job pays her $12.00 per hour. Her cashier job pays her $8.25 per hour. In one week, Kersha worked 55 hours. She earned a total of $585.

How many hours did Kersha work in each job?

Office clerk: 35 hours; cashier: 20 hours

Office clerk: 20 hours; cashier: 35 hours

Office clerk: 31 hours; cashier: 24 hours

Office clerk: 28 hours; cashier: 27 hours

Answers

Answer 1

Answer: the answer to #4 is no solution

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What are we looking for here? Are we looking for x or trying to figure out the answer?

Don saves $1 the first week, 2$ the second week, $3 the third week, and $4 the fourth week. If he continues in this way, how many weeks will it take before Don has saved at least $50?Please show me the simplest and quickest way to solve this problem. EXPLAIN YOUR STEPS THOROUGHLY!!

Answers

This forms an arithmetic sequence, where the first term = 1, common difference = 1, and number of terms = n.

The formula for the sum of an arithmetic sequence is

$S_(n) = (1)/(2)n(2a + (n - 1)d)$

Where a = the first term and d = the common difference.

We want the sum to be at least $50, so
$50 \leq (1)/(2)n(2a + (n - 1)d)$

Substituting in a and d
$50 \leq (1)/(2)n(2(1) + (n - 1)(1))$

Rearranging
$50 \leq (1)/(2)n(2 + (n - 1))$
$50 \leq (1)/(2)n(1 + n)$
$100 \leq n(1 + n)$
$100 \leq n^2 + n$
$0 \leq n^2 + n - 100$

$\text{Let } n^2 + n -100 = 0$
$n = (-1 \pm √(1-4(1)(-100)))/(2)$
$n = (-1 \pm √(401))/(2)$
$n \geq 0 \implies n = (-1 + √(401))/(2)$
$n \approx 9.51$

So it will take 9.51 weeks, or 10 weeks to the nearest week.

How do ypu write the fact family for 3,6, and 18

Answers

3*6=18
6*3=18
18/6=3
18/3=6

3 X6 =18
6 X 3= 18
18÷ 3=6
18÷6=3

The capacity of a beaker is 0.1 liter converted to millimeter

Answers

One liter is equal to 1000 milliliters ("milli" comes from Latin, and it's a form of the word thousand: mille. )

so 0.1 liter is 0.1*1000=100

so 0.1 liter is 100 milliliters!

25 is what % of 200?

Answers

25 divided by 200 which is 0.125
hope it help you
thank you
:)

25% = 0,25
25% of 200 = 0,25*200 = 50

What is the percent correct for a quiz score of 14 points out of 20.A.43%B. 53%C.70%D.75%

Answers

14 divided by 20 is 0.7
Multiply that by 100
The answer is 70%

C. 70% because 14/20=x/100 so all u have to do is cross multiple and find x.. which is 20x=1400 then divide 20 by 1400 which will be 70%

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