All categories

3 years ago

Can you please help me with these problems, Thank you

Mathematics

2 answers:

Kaylis [27]3 years ago

7 0

A) A mark dwon greater than 99% and less than 100%

Mark down 99.1% of x

Original price: x

Final price: original price - mark down = x - 0.991 x = 0.009x

=> If orginal price is 1000 and mark down is 99.1% , final price = 0.009*1000 = 9

You can check that the mark down is 99.1% of 1000 = 991.

b) A mark down that is less than 1%

Mark down: 0.1%

Original price: 10,000

Mark down: 10,000 * 0.1% = 10

Final price: 10,000 - 10 = 9,990

c) A mark up that is more than 200%

Mark up: 300%

Original price: 100

=> final price = 100 + 100*300% = 100 + 300 = 400

VashaNatasha [74]3 years ago

3 0

Cost of tiles=288*80=$230.40
you paid 200 bucks
.You will get nothing back but you have to pay more 30.40 bucks

You might be interested in

If ABCD is dilated by a factor of 2, the

Anna [14]

(4,4) are the coordinates of C prime

6 0

3 years ago

Solve the system of linear equations below by graphing. x-y=17 and 3x+y=3

soldier1979 [14.2K]

Answer:

x=5,y=-12

Step-by-step explanation:

You add the two equations to get: 4x=20

Then you get x=5.

You plug this in to x-y=17 to get y=-12

The answer is x=5 and y=-12

8 0

3 years ago

Jake has a rectangular garden that measures 12 feet by 14 feet. He wants to increase the area by 50% and plans to increase each

emmasim [6.3K]

<em>In order to increase the area of a rectangular garden that measures 12 feet by 14 feet by 50% Jake must increase each dimension by equal lengths, x:</em>

$x\approx 2.9ft$

<h2>Explanation:</h2><h2 />

First of all, let's calculate the area of the original rectangular garden:

$A=b\times h \\ \\ b:base \\ \\ h:height \\ \\ \\ b=12ft \\ \\ h=14ft \\ \\ \\ A=12(14) \\ \\ A=168ft^2$

Jake wants to increase the area by 50%, so the new area would be:

$A'=168(1.5) \\ \\ A'=252ft^2$

He wants to increase the area by 50% and plans to increase each dimension by equal lengths, x, so this is represented by the figure below, therefore:

$(12+x)(14+x)=252 \\ \\ 168+12x+14x+x^2-252=0 \\ \\ x^2+26x-84=0 \\ \\ \\ Using \ quadratic \ formula: \\ \\ x=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \\ \\ a=1 \\ \\ b=26 \\ \\ c=-84 \\ \\ \\ x=\frac{-26 \pm \sqrt{26^2-4(1)(-84)}}{2(1)} \\ \\ x=\frac{-26 \pm \sqrt{1012}}{2} \\ \\ \\ Two \ solutions: \\ \\ x_{1}=-13+\sqrt{253} \approx 2.9\\ \\ x_{2}=-13-\sqrt{253} \approx -28.9 \\ \\ x_{2} \ is \ discarded \ because \ it \ can't \ be \ negatives$

Finally:

<em>In order to increase the area of a rectangular garden that measures 12 feet by 14 feet by 50% Jake must increase each dimension by equal lengths, x:</em>

$x\approx 2.9ft$

<h2>Learn more:</h2>

Dilation: brainly.com/question/10945890

#LearnWithBrainly

6 0

3 years ago

What value of x satisfies the system of equations below?

Vinvika [58]

Answer:

I think it is B) 0

Step-by-step explanation:

6 0

3 years ago

Use the distributive property two different ways to find the product of 127 and 32

cricket20 [7]

127 = 100 +27
32 = 30 +2
so 127 x 32 = (100 + 27) x (30+2) = (100x30) + (100x2) + (27x30) +(27x2)
= 3000+200+810+54 = 4064

second way:

127 = 100 + 27
127 x 32 = (100+27) x 32 = (100x 32) + ( 27x32) = 3200 + 864 = 4064

5 0

3 years ago