Ask question

Ask question

All categories

2 years ago

11

Mason opens a savings account by making a $165.85 deposit. Every week, he deposits another $20.50 in the account.

2 answers:

tiny-mole [99]2 years ago

8 0

Answer:

i think that it would be

$370.85

Step-by-step explanation:

The following expression shows the amount of money in the account after x weeks.

If $20.50 was added to the account for 10 weeks we can substitue 10 as the x:

$370.85 will be in the account after 10 weeks

kkurt [141]2 years ago

4 0

The answer should be D. 165.85+20.5x. This is because 165.85 is what he first deposited. 20.5 is what he deposits each week . x is the amount of weeks he’s deposited. whatever amount of weeks , you would multiply it with 20.5 and then add that amount to the amount he already had which was 165.85

You might be interested in

Given f(x) = 4x + 3 and f(x) = 27, what is x?

Airida [17]

Step-by-step explanation:

f(x)=4x+3. f(x)=27

so 27=4x+3

27-3 =4x

24=4x

x=24/4

x=6

5 0

3 years ago

When obtaining a confidence interval for a population mean in the case of a finite population of size N and a sample size n whic

Elanso [62]

Answer:

95% Confidence interval for the mean

$142.8 \leq\mu\leq158.4$

Step-by-step explanation:

We have to calculate a 95% confidence interval for the mean of a finite population.

The error is multiplied by the following finite population correction factor:

$cf=\sqrt{\frac{N-n}{N-1} }$

The standard deviation can be estimated as

$\sigma=\frac{s}{\sqrt{n}} \sqrt{\frac{N-n}{N-1} } =\frac{24.4}{\sqrt{32} }* \sqrt{\frac{200-32}{200-1} }=3.963$

The 95% confidence interval has a z value of 1.96, so it becomes:

$M-z*\sigma_c\leq\mu\leq M+z*\sigma_c\\\\150.6-1.96*3.963\leq\mu\leq 150.6+1.96*3.963\\\\ 142.8 \leq\mu\leq 158.4$

5 0

3 years ago

If g is the variable, which mathematical sentence expresses the information below? "The number of gallons of gas in the tank plu

Firdavs [7]

An equation for the sentence would be g + 7 = 12, where g is the unknown number of gallons.

5 0

3 years ago

Read 2 more answers

Graph the line that has a slope of <br> 1/3<br> and includes the point (0,9).

jekas [21]

Answer:

you can use the calculator very nice

7 0

3 years ago

Someone pls help im so close

Sliva [168]

Answer: A) 126.6

<u>Step-by-step explanation:</u>

Since we know ∠B = 85° and ∠C = 53°, we can use the Triangle Sum Theorem (angles of a triangle = 180°) to calculate ∠A.

∠A + ∠B + ∠C = 180

∠A + 85 + 53 = 180

∠A + 138 = 180

∠A = 42

Now we have:

A = 42 B = 85 C = 53

a = 85 b = ??? c = ???

We have all of the information for ∠A and side a so we can use the Law of Sines to find b (AC).

$\dfrac{\sin 42}{85}=\dfrac{\sin 85}{b}\\\\\\b(\sin 42)=85(\sin 85)\\\\\\b=\dfrac{85\sin 85}{\sin 42}\\\\\\b=\large\boxed{126.547}$

4 0

3 years ago