Answer:
30 people
Step-by-step explanation:
100 people to the survey. And the question is practically asking how many people are left. So we have to subtract 60 from 100. And then subtract 10.
1.) 100 - 60 = 40
2.) 40 - 10 = 30
Hope this helps you out! : )
Answer:
=-4x^2-11x+13
Step-by-step explanation:
4.8
To find the answer, cross multiply 2/25 with x/60
2 times 60 is 120, so put 120 over 25 and divide for your answer.
In cases like this, i.e. when you could pick every marble with the same probability, you compute the probability of picking a specific marble colour by dividing the number of favourable outcomes by the total number of outcomes.
The number of favourable outcomes is 3, because there are 3 blue marbles.
The total number of outcomes is 12, because there are 12 marbles in total.
As mouse said
let the number be x
so
x * x = 361
x^2 = 361
x = 19 or -19
