90 is one tenth of what?

Answers

Answer 1
Answer: 90 is a tenth of 900. You need ten 90's to make 900.

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-k - 17 = -5 - K - 12

What is the vertex form of 2x=y^2-10

Answers

Answer:

x = 0.5y^2 - 5.

Step-by-step explanation:

2x=y^2-10

Divide both sides by 2:

x = 0.5y^2 - 5

Answer:

Step-by-step explanation:

x = 0.5y^2 - 5

the vertex is : (-5 , 0)

look this graph

Which number is a factor of 21 but not a multiple of 7

Answers

the number 3 is a factor of 21 
the factor it willl be 3 people if you mutiple by 7 you will get 21

What is 4 x 3/4 simplest form?

Answers

4*(3)/(4)= 12/4 = 3
its 1 because when multiplying a whole number and a fraction you just take the fraction of the whole number ex. 8 x 7/8 = 1 and 10 x 1/2= 5

If t(n) equals 5-2n, what is the 4th term?
Work out 3/4 of 7kg

Answers

easy
f(n)=5-2n
f(4)=5-2(4)
f(4)=5-8
f(4)=-3

-3 is 4th term

3/4 of 7kg=3/4 times 7kg=21/4kg=5 and 1/4kg

Gina read 120 pages in 4 days at this rate how many pages will she read 5 days

Answers

she will have 150 in 5 days because 120÷4=30 30+120=150
Set up a ratio and solve it:

120 pages x pages
--------------- = -----------
4 days 5 days

Cross multiply to get 120*5= 4x
600= 4x
150=x

Gina will read 150 pages in 5 days.

Thelma spent 1/6 of her weekly allowance on dog toys.  1/4 on a dog collar and 1/3 on dog food.  What fraction of her weekly allowance is left

Answers

To figure out you would first find a common factor with would be 12. After that 1/4 would be 3/12, 1/3 would be 4/12 and 1/6 would be 2/12. Next you just add all the numbers and get 9/12 then the remainder is you answer which comes to be 3/12 or 1/4. Hope that helps:)
3/12 or the simplified answer is 1/4