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2 years ago

NEED HELP ASAPPPPPPPP !!!

Mathematics

2 answers:

adoni [48]2 years ago

7 0

Answer:

12.80

Step-by-step explanation:

Oh this is quite simple once you figure it out once.

So basically you multiply the two sides by themselves

10 x 10 = 100

8 x 8 =64

Add together

164

find square root

12.8062485

Answer would prob be 12.80

Kisachek [45]2 years ago

5 0

I would do 10x10-8x8 which is 36 which is 6 times it self
So A=6 in.

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Which equation can be used to represent six added to twice the sum of a numbee and four is equal to one half of the difference o

Ronch [10]

Answer: $6 + 2 (x+4)$ = $\frac{3}{2}$ $(3-x)$

Step-by-step explanation:

let the number be x , then :

six added to twice the sum of a number and four means :

$6 + 2 (x+4)$

one half of the difference of three and the number means :

$\frac{3}{2}$ $(3-x)$

combining the two , we have

$6 + 2 (x+4)$ = $\frac{3}{2}$ $(3-x)$

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3 years ago

What is the cost of each item? What is the subtotal? What is the tax? What is the total paid? Shoes: $49.99 (normally) they are

prisoha [69]

Answer:

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Tax = $9.81

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Step-by-step explanation:

Normal price of shoes = $49.99

Discount = 25%

Discounted price:

$\$49.99 - \$49.99\times \dfrac{25}{100} = \$37.4925$

Normal price of jacket = $137.99

Discount = 33%

Discounted price:

$\$137.99 - \$137.99\times \dfrac{33}{100} = \$92.4533$

Price of pack of cookies = $4.49

No discount on cookies as per question statement.

Total amount without tax = $37.4925 + $92.4533 + $4.49 = $134.4358

Sales Tax = 7.3% of total amount without tax = 7.3% $\times$ $134.4358 = $9.81

Total paid = $134.4358 + $9.81 = $144.2458

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What is 3 tenths more than 8.154 ? What is 2 and 2 tenths more than 1.425? Explain please !

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8.454 is 3 tenths more than 8.154
3.625 is 2 and 2 tenths more than 1.425

Place values after the decimal point are tenths, hundredths, thousandths, ten thousandths...so on.

So 3 tenths looks like this 0.30 ⇒ 3 is in the tenths place. When you say 3 tenths more, it is a clue that the operation to be done is addition. thus,

8.154
+ 0.30
 8.454 * in addition or subtraction, the decimal points must be aligned to avoid confusion.

2 and 2 tenths is like this 2.20 ⇒ 1st 2 is in the ones or units place and the 2nd 2 is in the tenths place. Again it states more than so addition must be done.

1.425
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3.625

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