noaheault
10.10.2021 •
Mathematics
The sum of three consecutive even integers is 642. What are the integers? (Show your work too please)
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Ответ:
212,214,216
Step-by-step explanation:
n+n+2+n+4=642
add the n's and 2 and 4
3n+6=642
subtract 6 from both sides
636 divided by 3
you get 212 then add 2 twice.
Ответ:
212, 214, 216
Step-by-step explanation:
Basically you can divide 642 by 3 to find the average number of the 3. get You get 214, so that means 214 + 214 + 214 = 642
We need consecutive EVEN integers though, so you can take the one even BEFORE and then one even AFTER 214
This means 212 and 216 are used as they are 2 before and 2 after, so when added they still total 642.
Ответ:
when u divide fractions, u flip the second fraction around and multiply
4/5 divide by 2/25
= 4/5 x 25/2
= 100/10
reduced is 10/1, or a mixed fraction would be just 10
then subtract
10/1 - 5/16
= 9 11/16