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anyanavicka [17]
3 years ago
11

I need help on some math work

Mathematics
1 answer:
Vikentia [17]3 years ago
3 0

Answer:

20d

Step-by-step explanation:

its my guess, several weeks not seven so you dont know how many weeks so we use the variable d. $20 a week. multiply the $20 by the amount of weeks you get 20d

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If 420 = 120%, what would 100% equal?
Ira Lisetskai [31]

Answer:

350

Step-by-step explanation:

Introduction. Percent, p%

'Percent (%)' means 'out of one hundred':

p% = p 'out of one hundred',

p% is read p 'percent',

p% = p/100 = p ÷ 100

120% = 120/100 = 120 ÷ 100 = 1.2

100% = 100/100 = 100 ÷ 100 = 1

Percentage of 120% of what number = 420?

120% × ? = 420

? =

420 ÷ 120% =

420 ÷ (120 ÷ 100) =

(100 × 420) ÷ 120 =

42,000 ÷ 120 =

350

<h2>Proof</h2><h3>How do we check the result?</h3>

If 120% × 350 = 420 =>

Divide 420 by 350...

... And see if we get as a result: 120%

<h3>Note:</h3>

Multiply a number by the fraction 100/100,

... and its value doesn't change.

100/100 = 100 ÷ 100 = 1

n/100 = n%, any number.

<h2>Hope it is helpful....</h2>
8 0
3 years ago
Evaluate -2x 2y, if x = -3 and y = -1. Evaluate -2x 2y, if x = -3 and y = -1.
Inessa [10]

Answer:

-12

Step-by-step explanation:

-2(-3) x 2(-1)=

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8 0
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Answer:

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Step-by-step explanation:

6 0
3 years ago
The eggs of birds and other animals come in many different shapes and sizes. Eggs often have a shape that is nearly spherical. W
vekshin1

Answer:

696.9 cm^3 to the nearest tenth.

Step-by-step explanation:

Radius of the egg = 1/2 * 11 = 5.5 cm.

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Step-by-step explanation:

24 + 2 + 4x = 90

26 + 4x = 90

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6 0
3 years ago
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