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evablogger [386]

2 years ago

12

An $8 item is marked up 75%. What is the cost of the item?

1 answer:

UNO [17]2 years ago

8 0

14 dollars because it’s only 75 % out of. 8

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you purchased 10.75 gallons of gasoline at 3.60/gallon. you also bought a cookie (1.25) and windshield wiper fluid at (4.97). th

elixir [45]

Here is the solution of the given problem above:
Given: Gasoline = 10.75 gallons x $3.60 = $38.70
Cookie = $1.25 + food tax 4% = $1.30
Wiper fluid = $4.97
Cash = $20.00
? = amount charged on debit card
In order to know how much was charged, we first need to add all the other expenses. So the total would be $44.97. Deduct $20 from it so the amount charged to the debit card is $24.97. Hope this answer helps.

6 0

2 years ago

Find the multiplicative inverse of 2/3 * - 5/7

boyakko [2]

Answer:

$-\frac{21}{10}$ is the required multiplicative inverse.

Step-by-step explanation:

First of all simplify the given expression.

$\frac{2}{3}\cdot \frac{-5}{7}=-\frac{2\cdot \:5}{3\cdot \:7}=-\frac{10}{21}$

Multiplicative inverse of any number when multiplied gives 1.

The multiplicative inverse of $-\frac{10}{21}$ is $-\frac{21}{10}$ because:

$-\frac{10}{21}\times -\frac{21}{10}=1$

Best Regards!

6 0

3 years ago

The length of ZX is 2 units. What is the perimeter of triangle XYZ?

dezoksy [38]

Keywords

triangle,perimeter,distance, length, side, points

we know that

The <u>perimeter</u> of a<u> triangle</u> is the sum of the three <u>length</u> <u>side</u>

To find the<u> length</u> <u>side</u> calculate the <u>distance</u> between two <u>points</u>

The formula to calculate the <u>distance</u> between to <u>points</u> is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

Step 1

Find the <u>distance</u> ZY

$Z(1,0)\\Y(3,1)$

substitute the values

$d=\sqrt{(1-0)^{2}+(3-1)^{2}}$

$dZY=\sqrt{5}\ units$

Step 2

Find the <u>distance</u> XY

$X(-1,4)\\Y(3,1)$

substitute the values

$d=\sqrt{(1-4)^{2}+(3+1)^{2}}$

$dXY=\sqrt{25}=5\ units$

Step 3

Find the <u>perimeter</u> of the <u>triangle</u>

$P=ZX+ZY+XY$

we have

$dZX=2\sqrt{5}\ units$

$dZY=\sqrt{5}\ units$

$dXY=5\ units$

Substitute

$P=(2\sqrt{5}+\sqrt{5}+5)\ units$

therefore

the answer is

$P=(3\sqrt{5}+5)\ units$

4 0

2 years ago

Read 2 more answers

Will mark branniest if gotten right

iris [78.8K]

Answer:

? = 30°

Step-by-step explanation:

All angles in a triangle add up to 180°

? + 130° + 20° = 180°

? = 180° - 130° - 20°

? = 30°

8 0

2 years ago

The circle below represents one whole.<br><br>What percent is represented by the shaded area?

Lynna [10]

Answer:

1/4

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers