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Nuetrik [128]
3 years ago
12

Sam found a wrecked car that could she could fix. She bought the car for

Mathematics
2 answers:
katen-ka-za [31]3 years ago
8 0
4,680 I do it like this 50 percent is 3600 then 10 percent is 720 and 5 percent is 360 add then you get 4,680
alina1380 [7]3 years ago
5 0
<h3>Answer:  $4,680  (choice B)</h3>

=======================================================

Work Shown:

x% = x/100

65% = 65/100 = 0.65

So 65% in decimal form is 0.65

We use this to find the amount Sam paid for the car

65% of 7200 = 0.65*7200 = 4,680 dollars

--------------

Here's an alternative way to show your work

part/whole = percent/100

x/7200 = 65/100

x/7200 = 0.65

x = 0.65*7200

x = 4680

Ultimately we end up with 0.65*7200 and that's how we lead to the same answer as before. You could cross multiply like so

x/7200 = 65/100

x*100 = 7200*65

100x = 468000

x = 468000/100

x = 4680

So there are many paths to the same answer.

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You are going to a 1940 mile trip, and your car get about 28 miles per gallon. Gas prices along your route average $2.95 per gal
Nataliya [291]

Answer: \$\ 204.4

Step-by-step explanation:

Given

The total length of the trip is l=1940\ \text{miles}

Car average is 28 miles per gallon

So, car requires

\Rightarrow \dfrac{1940}{28}=69.285\ \text{gallon}

Price of gas is $2.95 per gallons

\therefore \text{cost is =}69.285\times 2.95\\\Rightarrow \$\ 204.4

So, the cost of the trip is \$\ 204.4

8 0
2 years ago
If AD is the altitude to BC, what is the slope of AD?
anygoal [31]

Answer:

Option (C)

Step-by-step explanation:

If AD is the altitude to BC, both the segments AD and BC will be perpendicular to each other.

By the property of perpendicular lines,

m_1\times m_2=-1

where m_1 is the slope of the line AD and m_2 is the slope of BC.

m_2=\frac{y_2-y_1}{x_2-x_1}

     =\frac{8+2}{3-7}

     =-\frac{5}{2}

Now from the given property,

m_1\times (-\frac{2}{5})=-1

m_1=\frac{5}{2}

Therefore, slope of altitude BC = \frac{5}{2}

Option (C) will be the answer.

3 0
3 years ago
Multiply and simplify: (6x + 3y)(6x − 3y)
nasty-shy [4]

Answer:

36x² - 9y²

Step-by-step explanation:

We see that the given expression (6x + 3y)(6x - 3y) looks just like the expression (a + b)(a - b). When multiplied out, this is a difference of squares identity that I highly recommend you memorise:

(a + b)(a - b) = a² - b²

Here, a = 6x and b = 3y, so plug these in:

(6x + 3y)(6x - 3y) = (6x)² - (3y)² = 36x² - 9y²

5 0
3 years ago
Read 2 more answers
Please can someone help with this question. I don't understand
Umnica [9.8K]

Answer:

See below,please.

Step-by-step explanation:

Volume of water = meter reading (11) - meter reading (8)

=

= 4598 - 4559 = 39 {m}^{3}

7 0
3 years ago
What is the answer to this equation?
Bezzdna [24]
19c is the correct answer
6 0
3 years ago
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