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Katen [24]
3 years ago
7

What’s 4/5 of 3 And what’s 2/9 of 20

Mathematics
2 answers:
Karo-lina-s [1.5K]3 years ago
7 0

Answer:

4/5 of 3 = 12/5

2/9 of 20 = 40/9

Step-by-step explanation:

inna [77]3 years ago
3 0

Answer:

1.  2.4

2. 4.444

Step-by-step explanation:

First, let's look at 4/5 of 3. We can set it up like this:

<h2>3 * \frac{4}{5}</h2>

Next, multiply the 3 by the 4 to get this:

<h2>\frac{12}{5}</h2>

Then, if a calculator is permitted, we get the answer of 2.4.

The next thing to do would be to repeat the steps for 2/9 of 20.

20 * \frac{2}{9}

\frac{40}{9} = 4.444

<em>Hope this helps!!</em>

<em>- Kay :)</em>

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Please help me urgently! 50 points giving brainliest.
Alisiya [41]

The number of significant figures in the numbers are

  • 100 cm = 1 significant digit
  • 0.006700 cm = 2 significant digits
  • 450. cm = 3 significant digits

<h3>How to determine the number of significant figures in the following numbers?</h3>

As a general rule, the zeros before and after the non-zero figures are not significant.

Using the above rule, we have:

  • 100 cm = 1 significant digit
  • 0.006700 cm = 2 significant digits
  • 450. cm = 3 significant digits

<h3>How to round the following numbers to the correct number of significant figures</h3>

Using the above rule in (a), we have:

  • 123g to show 1 sig fig = 100 g
  • 0.19851m to show 2 sig figs = 0.2 m
  • 0.0057034L to show 3 sig figs = 0.005703 L

<h3>How to report the following answers with correct significant figures</h3>

We have:

(12.93cm) x (2.34cm) x (8cm) = 242.05 cm^3 because 12.93 has 4 significant figures

67.0m / 2.18s = 30.7 m/s because 2.18 has 3 significant figures

<h3>How to convert the following metric to metric</h3>

450mL = 0.45 L

because 1 mL = 0.001 L

2.3 dm = 0.00023 km

because 1 dm = 0.0001 km

0.120cg = 1.2 mg

because 1 cg = 10 mg

6700L = 670000 cL

because 1 L = 100 cL

<h3>How to convert the following metric</h3>

a. 2.34miles = 3.76 km (1mile = 1.61km) -- given

b. 5.3ft = 161.544 cm(2.54cm = 1 in)

Because 1 ft = 30.48 cm

Read more about significant figures at:

brainly.com/question/24491627

#SPJ1

3 0
2 years ago
A small company’s net income for the first six months of the year was $76,500 and for the last six months it was $100,000. What
kkurt [141]
Hello

Answer: The ratio of the first 6 months to the last 6 months is 0.765.
First, we need to determine the amount of money they had in each 6 month period.
In the first 6 months they had: 6 x 76500 = 459000
In the second 6 months they had: 6 x 100000 = 600000
Divide the 2 values to find the ratio:  459000 / 600000 = 0.765
Have a nice day
8 0
3 years ago
Determine the slope of the line that passes through each pair of points. Write in simplest form. (3,8) and (1,5)
boyakko [2]

Answer:

y = 3/2x + 7/2

Step-by-step explanation:

First, you need to find the slope.

y2 - y1 / x2 - x1

= 5 - 8 / 1 - 3

= 3/2

The slope is 3/2x.

To find the y-intercept, plug any one of the coordinates into the equation, which is y = 3/2x + b

y = 3/2x + b

8 = 3/2(3) + b

8 = 9/2 + b

7/2 = b

The equation y = 3/2x + 7/2.

3 0
3 years ago
Steps to solve equation 1+3x=-x+4
Semmy [17]

Answer:

3/4

Step-by-step explanation:

1+3x=-x+4

1+3x-(-x)=4

1+3x+x=4

1+4x=4

4x=4-1

4x=3

x=3/4

6 0
3 years ago
Read 2 more answers
when you multiply a number by itself then multiply that number by another number and it equals 80 what are the 2 numbers?
sasho [114]
4 and 5
(4)(4)=16 then (16)(5)=80
3 0
3 years ago
Read 2 more answers
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