Answer:
2.5x-y=0
Step-by-step explanation:
You will have to understand this question before solving
According to the question 2.5 teaspoon of sugar is required for making one candy
Then y teaspoon of sugar is required to make y candy
Let's start
2.5 sugar=1 candy
y sugar=x candy
Let's cross multiply
y=2.5×x
y=2.5x
Which can also be written as
2.5x-y=0
Therefore the final answer is 2.5x-y=0
Answer:
a.4845ways.
b. 14535ways.
c. 3990ways
d. 1140ways
Step-by-step explanation:
Given data:
No of flavors available to customers = 20.
Solution:
This is permutation and combinations problem,
(a) how many ways can the customers choose 4 different ice creams if they are all of different flavors.
20C4
= n!/(n-k)!)k!
= 20!/(20-4)!)4!
= 20!/(16)!)4!
= 4845ways.
b) are not necessarily of different flavors
Let’s say any two same flavors can be chosen.
20C4 * 3!/2!
= 4845 * 3
= 14535ways.
c) contain only 2 or 3 flavors.
= 20C3 * 3!/2!
= 1140 * 3
= 3420
20C2 * 3
= 190 * 3
= 570.
No of 2 or 3 different flavors
= 3420 + 570
= 3990ways.
d) contain 3 different flavors.
20C3
= n!/(n-k)!)k!
= 20!/(20-3)!)3!
= 1140ways.
5x+70=320 I think that might be it tell me if its wrong
Answer:
The area of the rectangle is 48cm2
Answer:
57.53years to the nearest hundredth
Step-by-step explanation:
For compound interest,A=P(1+r/100)^t
where r=rate of interest
t= investment tenor
$43800=6400(1+3.4/100)^t
which simplifies to 57.5250≈57.53 to the nearest hundredth
