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2 years ago

A man purchased a magazine at the airport for $ 2.79 .

Mathematics

2 answers:

Sladkaya [172]2 years ago

7 0

23% is the answer i believe

Debora [2.8K]2 years ago

4 0

Answer:

Step-by-step explanation:

First of all, subtract 0.12 from 2.79. If you do that you assume that the 2.79 includes the tax, so you want to base purchase price.

2.79 - 0.12 = 2.67

The tax is 12 cents on 2.67

% = 0.12/2.67 * 100 = 0.0449 * 100 = 4.49%.

To the nearest % it would be 4%

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The longest side of an isosceles right triangle measures 16m. What is the perimeter ofthe triangle?

Andreyy89

Answer:

In right triangle hypotenus(side facing angle 90)is the longest

Step-by-step explanation:

lets say hyp=side1 +side2 were(side1=side2 in isocseles..) and Let x bet the length of side 1

So by applying phythegoras theorem :

hyp^2=x^2+x^2

16^2 =2x^2

2x^2=256

x^2=128

$\sqrt{x { }^{2} } = \sqrt{128}$

$8 \sqrt{2}$

Parameter=16+8

$8 \sqrt{2 } + 8 \sqrt{2 } + 16$

$16 \sqrt{2} + 16$

7 0

1 year ago

En said the value of the expression 72-8^2 +6*3 is 50. What mistake did Ben make? Correct Ben’s mistake and give the value of th

posledela

Given:

$72-\frac{8}{2}+6\times3$

He does mistake in the order of giving preference.

We should give preference in the order, division, multiplication, addition, subtraction.

But, he gave the first preferrence to the subtraction.

72-8=64

Next, he used division

64/2=32

Next he adds 32 with 8.

So, he gets 50.

But the actual simplification is,

Simplifying we get,

$\begin{gathered} 72-\frac{8}{2}+6\times3=72-4+18 \\ =68+18 \\ =86 \end{gathered}$

Hence, the correct value of the expression is 86.

7 0

10 months ago

Needed help for my math please

vesna_86 [32]

Answer:

see explanation

Step-by-step explanation:

(a)

$\frac{a}{a}$ = 1 ( any value divided by itself = 1 )

(b)

$\frac{a}{1}$ = a ( any value divide by 1 is the value itself )

(c)

$\frac{a}{b}$ × $\frac{c}{d}$ = $\frac{ac}{bd}$

The product of 2 fractions is the product of the numerators divided by the product of the denominators

(d)

$\frac{a}{b}$ ÷ $\frac{c}{d}$ = $\frac{ad}{bc}$

To divide 2 fractions, leave the first fraction, change division to multiplication and turn the second fraction upside down, that is

$\frac{a}{b}$ ÷ $\frac{c}{d}$ = $\frac{a}{b}$ × $\frac{d}{c}$ = $\frac{ad}{bc}$

(e)

$\frac{a}{d}$ + $\frac{b}{d}$ = $\frac{a+b}{d}$

Since the fractions have a like denominator, add the numerators leaving the denominator. This applies to subtraction also

(f)

$\frac{a}{d}$ - $\frac{b}{d}$ = $\frac{a-b}{d}$

See explanation for part (e)

6 0

2 years ago

A baker cut a pie in half. He cut each half into 3 equal pieces and piece into 2 equal slices. He sold 6 slices. What fraction o

prisoha [69]

He sold one half of the pie because if you do it in your head split one half into 3 and get one sixth, then that slit in two is 1 twelfth so if he sold six pieces and six is one half of twelve then you get one half.

7 0

3 years ago

Read 2 more answers

What’s the range of this?

lbvjy [14]

Answer:

10 to 35

Step-by-step explanation:

3 0

3 years ago