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3 years ago

Jessica was trying to determine if her friends that had a two story house also had a minivan. She surveyed her

Mathematics

2 answers:

Pavel [41]3 years ago

7 0

Answer:

this is easy is C

Step-by-step explanation:

Naddik [55]3 years ago

6 0

The answer should be C

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A cell phone company has a basic plan of $40 plus $0.45 for any minutes over 700. Before receiving his statement, John saw he wa

Darya [45]

Answer:

$718\ min$

Step-by-step explanation:

Let

x ----> the number of minutes

y ----> the total charge in dollars

we know that

For x>700 min

$y=0.45x+40$

For y=48.10

substitute

$48.10=0.45x+40$

Multiply by 100 both sides

$4,810=45x+4,000$ ----> equation without decimals

solve for x

$45x=4,810-4,000\\45x=810\\x=18\ min$

To find out the total minutes we need to sum

$18\ min+700\ min=718\ min$

7 0

3 years ago

many credit card companies charge a compound interest of 1.8% per month on a credit card balance. Miriam owes 750 on a credit ca

nadya68 [22]

Answer:

Most credit card companies also apply a late payment penalty if you owe a balance and do not make a payment. Ignoring that fee, Miriam's balance will increase as:

B(n) = 750(1.018)^n

where B(n) is Miriam's balance after n months. The progression will be:

$750.00

$763.50

$777.24

$791.23

$805.48

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

How much interest will Hannah

baherus [9]

keeping in mind that a year has 12 months, thus 6 months is really 6/12 of a year.

$~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\\ P=\textit{original amount deposited}\dotfill & \$630\\ r=rate\to 6.5\%\to \frac{6.5}{100}\dotfill &0.065\\ t=years\to \frac{6}{12}\dotfill &\frac{1}{2} \end{cases} \\\\\\ I = (630)(0.065)(\frac{1}{2}) \implies I\approx 20.48$