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3 years ago

576 is what percent of 800?

Mathematics

2 answers:

aleksley [76]3 years ago

8 0

72 percent.
Divide 576 into 800 to get 72%

Black_prince [1.1K]3 years ago

6 0

Answer:

If you enter 576÷800×100 it will give you 72.

hope that this helps you and have a great day :)

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Mr. Kovich is preparing materials for a craft project. He needs to cut 2 meters of string into pieces that are 0.2 meters long.

kondor19780726 [428]

Answer:

10 pieces

Step-by-step explanation:

2 divided by 0.2

20 divided by 2

10 pieces

8 0

2 years ago

Let a = x2 + 4. Use a to find the solutions for the following equation:

Zepler [3.9K]

The solutions for x are -2, 0, 2

Solution:

Given that,

$\text { Let } a = x^2 + 4$

Given equation is:

$(x^2 + 4)^2 + 32 = 12x^2 + 48$

$(x^2 + 4)^2 + 32 = 12(x^2 + 4)$

$\text { Subtsitute } a = x^2 + 4 \text{ in above equation }$

$a^2 + 32 = 12a\\\\a^2 -12a + 32 = 0$

$\text{ Let us factorize the above equation }\\\\\text{ Splitting the middle term -12a as -4a - 8a we get, }$

$a^2 -4a - 8a + 32 = 0$

Taking "a" as common term from first two terms and taking "-8" as common from last two terms

$a(a-4)-8(a - 4) = 0$

$\text{Taking (a - 4) as common term, }\\\\(a - 4)(a - 8) = 0$

$\text{Equating to zero we get, }\\\\(a - 4) = 0 \text{ or } (a - 8) = 0\\\\a = 4 \text{ or } a = 8$

$\text{Now substitute the value of a = 8 and a = 4 in: }\\\\a = x^2 + 4$

$\text{ For a = 8: }\\\\a = x^2 + 4\\\\8 = x^2 + 4\\\\x^2 = 4\\\\x = \pm2\\\\x = +2 \text{ or } -2$

$\text{For a = 4: }\\\\a = x^2 + 4\\\\4 = x^2 + 4\\\\x = 0$

$\text{Thus solutions of } x \text{ are: }\\\\x = 0 \text{ or } x = 2 \text{ or } x = -2$

8 0

3 years ago

A 52 card deck of cards is dealt from the top of the deck. what's the probability that it is a red?

Semmy [17]

The probability it is red is 1/2 because there are 2 suits of both red and black making each color have 26 cards so equal amounts equals 1/2

6 0

2 years ago

What is the value of x A.45 B.50 C.90 D.30

xenn [34]

I think the answer would be D

4 0

2 years ago

Read 2 more answers

Leonard earns $8.75 per hour working at a bowling alley. Last weekend, he worked for 5.4 hours. How much money did Leonard earn

sertanlavr [38]

Answer:

$47.25

Step-by-step explanation:

Earnings = (rate of pay)(number of hours worked)

Here,

Earnings last weekend = ($8.75/hr)(5.4 hrs) = $47.25

4 0

2 years ago