Item 22 Solve |3h+1|=7h.

Mathematics

1 answer:

Law Incorporation [45]3 years ago

8 0

your answer should be h=1/4

You might be interested in

Find the sum of 7a 3 14a 12 and -6a 3 12a 2 -7.

Mademuasel [1]

Assuming the missing signs are pluses, that would work out to a^3 + 12a^2 + 14a + 5

3 0

3 years ago

The mean of seven numbers is 21. Five of the numbers are 18, 23, 21, 17, and 19. One of the remaining numbers is 3/4 of the othe

zalisa [80]

Mean of a set of numbers is
(sum of the values of the numbers in the set)/(how many numbers in the set)=mean
example
1,2,4
mean is
(1+2+4)/3=7/3

ok

mean of 7 numbers is 21
(7numbers)/7=21

"5 of them are 18,23,21,17"
(mentally do 7-5=2)
2 missing
"one of the remaining is 3/4 of other"
the 2 remaining is x and 3/4x

nmow we have
(18+23+21+17+19+x+3/4x)/7=21
add like terms
(98+1 and 3/4x)/7=21
mulitply everybody by 7
98+7/4x=147
minus 98 both sides
7/4x=49
multiply both sides by 4/7 to clear fraction (7/4 times 4/7=28/28=1, so 1x=x)

1x=196/7
x=28
the other number is 3/4 of this
3/4x=3/4*28=21

the 2 unknowns are 28 arnd 21

5 0

4 years ago

Read 2 more answers

I need the rate of change plz and thank you

gavmur [86]

Answer:

$m=4$