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podryga [215]
4 years ago
11

At an assembly 7 out of the first 10 students who entered the gym we're carrying a backpack. Based on this on formation if 700 s

tudents were at the assembly how many students could be expected to be carrying a backpack?
Mathematics
2 answers:
Romashka [77]4 years ago
6 0

Answer:

490 students have back packs

Step-by-step explanation:

700 / 10 = 70

70* 7 = 490

Valentin [98]4 years ago
4 0
7 students carrying a backpack out of 10 total students = 7/10

700 students attending divided by 10 students from formation, equals 70

in multiplication, it would be 70 • 10 = 700

do the same to the numerator of the fraction

7 • 70 = 490 students carrying a backpack

so, your final answer would be:

if 700 students are attending this assembly, based o the formation, 490 students would be carrying a backpack
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Rationalize the numerator or denominator, and simplify:
allochka39001 [22]
\dfrac{\sqrt[3]{x+h}-\sqrt[3]x}h\times\dfrac{\sqrt[3]{(x+h)^2}+\sqrt[3]{x(x+h)}+\sqrt[3]{x^2}}{\sqrt[3]{(x+h)^2}+\sqrt[3]{x(x+h)}+\sqrt[3]{x^2}}=\dfrac{(\sqrt[3]{x+h})^3-(\sqrt[3]x)^3}\cdots
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The hs then cancel, leaving you with the \cdots=\sqrt[3]{(x+h)^2}+\sqrt[3]{x(x+h)}+\sqrt[3]{x^2} term.

If it's not clear what I did above, consider the substitution a=\sqrt[3]{x+h} and b=\sqrt[3]x. Then

a^3-b^3=(a-b)(a^2+ab+b^2)
\implies\dfrac{a-b}h=\dfrac{a-b}h\times\dfrac{a^2+ab+b^2}{a^2+ab+b^2}=\dfrac{a^3-b^3}{h(a^2+ab+b^2)}
4 0
3 years ago
Calculate the cost (omit commission) of buying the 500 shares of Delta Air at $50.61.
galben [10]

Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. The cost of 500 shares of Delta Air is $25,305.

<h3>What is multiplication?</h3>

Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.

The cost of a single share is $50.61, therefore, the cost of 500 shares will be,

Cost of 500 shares = 500 × cost of single share

                                 = 500 × $50.61

                                 = $25,305

Hence, the cost of 500 shares of Delta Air is $25,305.

Learn more about Multiplication:

brainly.com/question/14059007

#SPJ1

7 0
2 years ago
if a store uses a selling price based markup of 40% and an item cost the store $300 what selling price would the store set for t
kirza4 [7]

Answer:

The selling price would be $420.

Step-by-step explanation:

In order to find the mark up, we need to multiply the amount it originally costs by the percentage it is being marked up.

$300 * 40% = $120

Now that we have the mark up amount, we add it to the original cost to get the sale price.

$300 + $120 = $420

6 0
3 years ago
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