All categories

3 years ago

Express this decimal as a fraction. 0.8 repeating decimal

1 answer:

3 0

Whenever you have a repeating decimal, you can convert it into a fraction by taking the part that repeats and dividing it by the same amount of 9's.

Here, it's just the one 8 that keeps repeating.
So, the fraction would be 8/9

You might be interested in

NEED HELP ASAP

KengaRu [80]

Answer:

Part 1) Triangle GHI, JKL

Part 2) $(40*15)and(8*3)$ , $(18*6)and(4.5*1.5)$

Step-by-step explanation:

we know that

If two figures are similar

then

the ratio of their corresponding sides are equal and is called the scale factor

Part 1)

case a) triangle GHI

If ABC and GHI are similar

then

$\frac{4}{24}=\frac{3}{7}=\frac{5}{25}$

but

$0.17 \neq 0.43 \neq \ 0.20$

therefore

Triangle GHI is not similar to triangle ABC

case b) triangle DEF

If ABC and DEF are similar

then

$\frac{4}{44}=\frac{3}{33}=\frac{5}{55}$

$0.09=0.09=0.09$

therefore

Triangle DEF is similar to triangle ABC

case c) triangle MNO

If ABC and MNO are similar

then

$\frac{4}{10}=\frac{3}{7.5}=\frac{5}{12.5}$

$0.4=0.4=0.4$

therefore

Triangle MNO is similar to triangle ABC

case d) triangle JKL

If ABC and JKL are similar

then

$\frac{4}{21}=\frac{3}{20}=\frac{5}{29}$

$0.19 \neq 0.15 \neq 0.17$

therefore

Triangle JKL is not similar to triangle ABC

Part 2)

case a) If the rectangles are similar, then

$\frac{40}{8}=\frac{15}{3}$

$5=5$

therefore

the rectangles are similar

case b) If the rectangles are similar, then

$\frac{18}{4.5}=\frac{6}{1.5}$

$4=4$

therefore

the rectangles are similar

case c) If the rectangles are similar, then

$\frac{1,225}{3.5}=\frac{144}{1.2}$

$350\neq120$

therefore

the rectangles are not similar

case d) If the rectangles are similar, then

$\frac{13}{5.2}=\frac{5}{2.5}$

$2.5\neq 2$

therefore

the rectangles are not similar

3 0

4 years ago

Eric and Kelsey each work after school to earn money. Eric charges $10, plus an additional $4 per hour to babysit. Kelsey charge

anyanavicka [17]

Answer:

the option 3 or c is correct

7 0

3 years ago

A number divided by 50 has a quotient of 14 with a remainder of 2. Find the number

WARRIOR [948]

The correct answer is 702.

4 0

4 years ago

***NEED HELP FAST!!!!!*** What is the volume of figure A in the composite figure?

vodka [1.7K]

Answer:

30 in

Step-by-step explanation:

subtract 5 inches from 8 inches and you get 3 inches (the height)

then we already have the given 4 inches (the width)

then finally we can see from figure b that the depth is 5 inches

you multiply all of them together and get 60, before dividing that in half to get 30.

(not certain about units)

5 0

3 years ago

The graph shows the height h, in feet, of s football at time t, in seconds, from the moment it was kicked at ground level. Estim

aliina [53]

The graph shows the height h, in feet, of s football at time t, in seconds, from the moment it was kicked at ground level.

We are supposed to find the average rate of change in height from t=1.5 seconds to t=1.75 seconds.

Average rate of change in height= $\frac{\text{Change in Height}}{\text{Time taken}}\\$

As we can see from the the change in distance for the time interval 1.5 second to 1.75 second= $12-7=5$

and time= $1.75-1.5=0.25$

Average rate of change in height= $\frac{5}{0.25}\\$ =20ft/sec

Hence Required Rate of change is -20 ft/sec, because its falling(In the direction of negative y-aixs)

3 0

4 years ago

Read 2 more answers