Answer:
B) x + s = 90, x - s = 20
Step-by-step explanation:
x + s = 90 represents that both Xavier and Sara's money combined is $90.
x - s = 20 represents that Xavier has 20 more dollars than Sara.
Answer:
<h2>
66 different ways </h2>
Step-by-step explanation:
This is a combination question. Combination has to do with selection. For example if r objects are to be selected from n pool of oblects, this can be done in nCr number of ways.
nCr = n!/(n-r)r!
According to the question, if a radio show can only play 10 records out of 12 records available, this can be done in 12C10 number of ways.
12C10 = 12!/(12-10)!10!
= 12!/2!10!
= 12*11*10!/2*10!
= 12*11/2
= 6*11
= 66 different ways
9+(<span>6•16)10-22
9+(96)10-22
9+960-22
969-22
947
</span>
Answer:
Here you go, hope this helps
Step-by-step explanation:
Exact form: 13/12
Decimal form: 1.083 repeating
Mixed Number form: 1 1/12
Sabrina would have to drive approximately 10 1/2 more hours.
