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4 years ago

10 POINTS PLZ HELPpppppp

Mathematics

1 answer:

andrezito [222]4 years ago

7 0

1. 2/5 x 3/4

1/5 x 3/2

3/10

2.-20x(-6)

multiplying two negatives equals a positive so

20x6=120

A. -4

B.-20

C. Absolute value is always positive

4x2-3+15

8-3+15=20

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kondaur [170]

Step-by-step explanation:

<u>Given </u><u>:</u><u>-</u><u> </u>

A semicircle is given with radius of 3cm .

And we need to find the perimeter of the semicircle . We know the perimeter as ,

$:\implies$ Perimeter = πr

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Now there is the diameter of circle is 6cm . Hence totally the perimeter is ,

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<h3>Hence the perimeter is ( 3π + 6 ) cm</h3>

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3 years ago

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Anon25 [30]

Answer:

Rob saved $24 on Saturday.

Step-by-step explanation:

Given:

Rob is saving to buy a new MP3 player.

Money earned in baby sitting = $11

Money saved =$6

First we will find the Percentage of amount he saved.

Percentage of amount he saved can calculated by Amount saved divided by total money earned and then multiplying by 100.

framing in equation form we get;

Percentage of amount he saved = $\frac{6}{11} \times 100 \approx 54.55\%$

Now Given:

Money earned in babysitting on Saturday = $44

We need to find the Money he saved on Saturday.

Money Saved can be calculated by Percentage of amount he saved multiplying by Money earned in babysitting on Saturday and then divided by 100.

framing in equation form we get;

Money Saved on Saturday = $\frac{54.55}{100}\times 44 = \$24$

Hence Rob saved $24 on Saturday.

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3 years ago

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Natali5045456 [20]

6+7 is that good i hope so

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