All categories

3 years ago

The Collins family electric bill each month from April through September

Mathematics

1 answer:

mina [271]3 years ago

4 0

Answer:

charge for electricity used over 700 kilowatt-hours per month.

Step-by-step explanation: thats the average for most houses

You might be interested in

Need help please worth 50 points

Law Incorporation [45]

Here's how you simplify those. The rule for raising an exponent to an exponent is that you multiply them. The rule for dividing exponents with the same base is that you subtract the denomonator from the numerator. So let's simplify the first one, which is actually the most confusing.
$( \frac{ p^{5} }{ p^{-3} q^{-4} } )^{ \frac{1}{4} }$
Multiplying the exponents you get:
$( \frac{ p^{ \frac{5}{4} } }{ p^{- \frac{3}{4} } q^{-1} })$
Subtracting the denominator from the numerator between the common base of p you get this:
$\frac{ p^{ \frac{5}{4}- (-\frac{3}{4}) } }{ q^{-1} }$
Doing that math gives you
$\frac{ p^{2} }{ \frac{1}{q} }$ which equals $\frac{ p^{2} }{1} * \frac{q}{1}$ which is $p^{2}q$ , or the third one down.

The next one:
$( \frac{ p^{2} q^{7} }{ q^{4} } )^{ \frac{1}{2} }$
simplifies to:
$\frac{p* q^{ \frac{7}{2} } }{ q^{2} }$
and subtracting the power of the denominator from the power of the numerator gives you:
$p q^{ \frac{3}{2} }$ , which is the last choice.
$( p^{6}q \frac{3}{2})^{ \frac{1}{3} }$
simplifies to:
$( p^{6* \frac{1}{3} } )( q^{ \frac{3}{2}* \frac{1}{3} })$
which simplifies very nicely to:
$p^{2}q^{ \frac{1}{2} }$ , which is the first choice. The other one is found by process of elimination!

8 0

4 years ago

1. The formula for calculating the circumference<br>of a circle is

REY [17]

Answer:

C = 2 x π x r

Step-by-step explanation:

π = pi 3.14

r = radius

C = circumference

8 0

4 years ago

QUESTION 11.1

lawyer [7]

The group paid $ 5250 at first city and $ 6250 at second city

<u>Solution:</u>

Let x = the charge in 1st city before taxes

Let y = the charge in 2nd city before taxes

The hotel charge before tax in the second city was $1000 higher than in the first

Then the charge at the second hotel before tax will be x + 1000

y = x + 1000 ----- eqn 1

The tax in the first city was 8.5% and the tax in the second city was 5.5%

The total hotel tax paid for the two cities was $790

<em><u>Therefore, a equation is framed as:</u></em>

8.5 % of x + 5.5 % of y = 790

$\frac{8.5}{100} \times x + \frac{5.5}{100} \times y = 790$

0.085x + 0.055y = 790 ------- eqn 2

<em><u>Let us solve eqn 1 and eqn 2</u></em>

<em><u>Substitute eqn 1 in eqn 2</u></em>

0.085x + 0.055(x + 1000) = 790

0.085x + 0.055x + 55 = 790

0.14x = 790 - 55

0.14x = 735

<em><u>Substitute x = 5250 in eqn 1</u></em>

y = 5250 + 1000

Thus the group paid $ 5250 at first city and $ 6250 at second city

8 0

3 years ago

There are ten kids in a class. When any two meet, each says “hi” to the other and the answer “hi” follows. Before the class star

Klio2033 [76]

If every single student met one an another, then you would hear 90 hi's. Since there are 45 different combinations of 2 students meeting another, and since there are 2 hi's each meeting, there would be 90.

I hope that this helps.

Please rate me as Brainliest so I can rank up :D

8 0

4 years ago

Read 2 more answers

According to the graph, what would be the cost of one ticket?

Shkiper50 [21]

Answer:

$35

Step-by-step explanation:

you take a point off the graph and divide the cost of tickets by the number of tickets.

7 0

3 years ago

Read 2 more answers