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3 years ago

Its original quantity is 10 in the new quantity is 3 what is the percent decrease

1 answer:

3 0

This is markdown, thus once again, two equations.
Markdown=Original-New
and
Markdown%=Markdown Amount/Original*100

Markdown=10-3
Markdown=7

Markdown%= 7/10*100
=0.7*100
=70

Thus, the percent decrease/Markdown is 70%.

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3 years ago

A rectangle has a width of 10 centimeters. The rectangles length is 4 times it’s width what is the perimeter of the rectangle

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4 years ago

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3 years ago

Read 2 more answers

If logx (8x-3) -logx 4=2, the value of x is

Vaselesa [24]

Answer:

x = 1/2 and 3/2

Step-by-step explanation:

The given equation is logₓ (8x-3) - logₓ 4 = 2

Then we have to determine the value of x.

logₓ $[\frac{(8x-3)}{4}]$ = 2 [ since log a - log b = log $(\frac{a}{b})$ ]

Now $x^{2}=\frac{(8x-3)}{4}$ [if $log_{a}$ b = c then $a^{c}$ = b]

4x² = 8x -3

4x² - 8x + 3 = 0

(2x)² - 2(4x) + (4-4) + 3 = 0

[(2x)² - 2 (4x) + 4 ] - 1 = 0

(2x - 2)² = 1

(2x - 2)² = ± 1 ⇒

2x - 2 = 1 and 2x - 2 = -1

x = 3/2 2x = 1

x = 1/2

Therefore, x = 1/2 and 3/2 are the answers.

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3 years ago

Two brothers are saving money to buy tickets to a concert their combined savings is 55. one brother has 15 more than the other.

ser-zykov [4K]

Let the amount saved by the brother that has less savings be x, then the savings of the other brother is x + 15.

Since their total savings is 55, then
x + x + 15 = 55
2x + 15 = 55
2x = 55 - 15 = 40
x = 40 / 2 = 20

Therefore, one person saved 20 and the other saved 20 + 15 = 35.

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3 years ago