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3 years ago

3. An elastic band which is 72 cm long to 90 cm. Find the percentage increase

Mathematics

1 answer:

Murljashka [212]3 years ago

7 0

Answer:

25% increase

Step-by-step explanation:

Take the new number and subtract the original amount

90-72 = 18

Divide this amount by the original amount

18/72 = .25

Multiply by 100

25%

This is the percent increase

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the cost of a ticket t to a concert with a 3% sales tax can be represented by the expression t+0.03t. simplify the expression. t

Brilliant_brown [7]

72.00 x 3% = 2.16
72.00 + 2.16 = 74.16 total

7 0

3 years ago

Can someone please help this these

Alexxx [7]

Answer:

To the first picture: it's 9

To the second: its sin3/5

Step-by-step explanation:

This would take some time to explain so I'll keep it brief

Pic 1) process of elimination through cos

Pic 2) You divide the opposite by the hypotenuse to get the degree of angle x

7 0

3 years ago

What number sentence is true?

meriva

D would be true because if you think about it in percentage wise
2/8= 25%
2/3=66.66%
2/3 is automatically greater than 2/8
Hope this helps :)

5 0

3 years ago

Alex mixes 2/3 pounds of walnuts with 3/5 pound of dried fruit. To create more of the same mixture, how many pounds of walnuts d

igomit [66]

ANSWER

Alex needs to mix one pound of dried fruit with
$1 \frac{1}{9}$
pounds of walnuts.

EXPLANATION

It was given that, Alex mixes
$\frac{2}{3}$
pounds of walnuts with

$\frac{3}{5}$
pounds of dried fruit.

We can write the ratio,

$\frac{2}{3} : \frac{3}{5}$

Let
$x$
represent how many pounds of walnuts Alex needs to mix with one pound of dried fruit.

Then we can again write the ratio,

$x: 1$
We can therefore write the proportion,

$\frac{2}{3} : \frac{3}{5} = x: 1$

This can be rewritten as,

$\frac{ \frac{2}{3} }{ \frac{3}{5} } = \frac{x}{1}$

We solve for x to obtain,

$\frac{2}{3} \times \frac{5}{3} = x$

This implies that,

$x = \frac{10}{9}$

$x = 1 \frac{1}{9}$

Hence Alex needs to mix
$1\frac{1}{9}$
pounds of walnuts with one pound of dried fruit.

8 0

4 years ago

If the smallest angle of rotation for a regular polygon is 18°, how many sides does polygon have? 10 12 20 24

valina [46]

Since the sum of the angles is 360°, we need to divide 360 with the number of sides that a polygon has.
360/18=20; this polygon has 20 sides.
<span>Result:20</span>

8 0

3 years ago

Read 2 more answers