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3 years ago

15

four sisters bought a present for their father. They receive a 10% off discount on the original price o the gift. After the disc

ount was taken, each sister paid $9.00 what was the original price of the gift

1 answer:

valina [46]3 years ago

8 0

the answer should be $40.00

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Find the percent increase or decrease: 43 to 78

Kobotan [32]

Answer:

81.39% increase.

Step-by-step explanation:

Given: There is change in number from 43 to 78.

First lets find the amount of change or difference in number.

Difference in number= $78-43= 35$

∴ Difference in number show that there is an increase of 35 number.

Now, finding the percent change in the number.

Percent= $\frac{Difference\ in\ number}{base\ number} \times 100$

⇒ Percent change in number= $\frac{35}{43} \times 100= 81.39\%$

∴ 81.39% increase in the number.

3 0

3 years ago

Y=3x, x+y=52<br> Solve by subtracting

Nesterboy [21]

Answer:

x=13,y=39

Step-by-step explanation:

y=3x,x+y=52

x+3x=52

4x=52

x=52/4

x=13

y=3(13)

y=39

5 0

3 years ago

Solve for x ~<br><img src="https://tex.z-dn.net/?f=3%20%5C%3A%20%2814%20-%205x%29%20%3D16%20-%20%2012x" id="TexFormula1" title="

lesya692 [45]

$3(14 - 5x) = 16 - 12x$

Distribute 3 throught the parentheses

$42 - 15x = 16-12x$

Move the variable to the left-hand side and change its sign

$42 - 15x + 12x = 16$

Move the constant to the right-hand side and change its sign

$- 15x+12x=16 - 42$

Collect like terms

$- 3x = - 26$

Divide both sides of the equation by -3

$\boxed{x = \frac{26}{3} }$

6 0

2 years ago

Read 2 more answers

A solid oblique pyramid has a square base with edges measuring x cm. The height of the pyramid is (x + 2) cm. Which expression r

zavuch27 [327]

we know that

the volume of a solid oblique pyramid is equal to

$V=\frac{1}{3}*B*h$

where

B is the area of the base

h is the height of the pyramid

in this problem we have that

B is a square

$B=b^{2}$

where

<u> $b=x\ cm$ </u>

so

$B=x^{2}\ cm^{2}$

$h=(x+2)\ cm$

substitute in the formula of volume

$V=\frac{1}{3}*x^{2}*(x+2)\\ \\V=\frac{1}{3}*[x^{3} +2x^{2}]\ cm^{3}$

therefore

<u>the answer is</u>

$V=\frac{1}{3}*[x^{3} +2x^{2}]\ cm^{3}$

4 0

3 years ago

Read 2 more answers

Two vertices of a rectangle are shown. If AC is a diagonal of the rectangle, and two other vertices of the rectangle, B and D, l

blondinia [14]

Answer:

You post the MCP problems here? Lol

Step-by-step explanation:

haha

ill tell mr aram someday ;p

5 0

3 years ago