Answer:
Step-by-step explanation:
You have so many questions here that doing one or two of them will hardly matter since are many more present.
Pick number 3 to start with
The left and right part of the cross will contain two numbers that multiply to 16. The numbers should be 8 and 2. Are 8 and 2 the right answers. ? They should be, because the bottom part of the cross is 8 and 2 added which is 10.
So the answer is left is 8, right is 2, bottom is 10. The 8 and 2 can be switched.
Try number nine next.
You need two numbers that multiply to 72 and that add to 18. You could use 8 and 9, but they done work. They do multiply to 72 but they only add to 17 which is not good enough.
Try 12 and 6. That looks much better. 12 * 6 does multiply to 72 so we're good so far. But the clincher is that 12 and 6 add to 18 which makes the answer right.
bottom = 12 + 6
left = 12
right = 6
Top = 12*6 = 72
Note: do all the ones that have no minus signs. When you have done that, come back and ask how to do a question that has a minus.
Answer:
1A= 27+43= 70
Step-by-step explanation:
you add the values of each thing they are asking so for the next one you would do, Cakes Plus Biscuits. So 86+59 and that will give you your answer for 1B
Answer:
This problem requires us to calculate, the value of investment after 10 and 25 years, and also tell the time after which intial investment amount will double. Investment rate and initial investment amount is given in the question.
Value of investment after 10 year = 600(1+8%)^10 = $ 1,295
Value of investment after 25 year = 600(1+8%)^25 = $ 4,109
Time after which investment amount double (n)
1200 = 600 (1.08)^n
Log 2 = n log 1.08
n = 9 years
Answer: Irrational number
If the decimal digits repeat forever, then the repeating decimal is considered rational.
For instance, 2/99 = 0.020202020202... where the "02" repeats forever
If we don't have such a pattern, then we cannot write the decimal as a fraction of two integers and the number is not rational. So it is irrational.
