Answer:
Step-by-step Solution:
Simply change the denominators such that both denominators are the same. Then, add the fractions to get your result.
- 1/2 + 1/6
- => 3 x 1/2 x 3 + 1/6
- => 3/6 + 1/6
- => 4/6 = 2/3
Hence, the solution is 2/3.
Answer:
I would say 42 but some of the image is cut off so I may be wrong:))
Step-by-step explanation:
Step-by-step explanation:
Share 20pounds in the ratio 2:3
Total ratio=2+3=5
2/5×20=8
20-8=12
Sharing 20pounds in that ratio gives 8pounds:12pounds
Share 15cm in the ratio 1:3
Total ratio=1+4=4
¼×15=3.75
15-3.75=11.25
Sharing 15cm in that ratio gives 3.75:11.25
Answer:

And replacing we got:

And we can calculate this probabilit using the normal standard distribution or excel and we got:

Step-by-step explanation:
If we define the random variable of interest "the amount spent by a family of four of food per month" and we know the following parameter:

And we want to find the following probability:

And we can use the z score formula given by:

And replacing we got:

And we can calculate this probabilit using the normal standard distribution or excel and we got:
