Answer:
7
Step-by-step explanation:
The probability of choosing a blue marble is 7/8, or 49/56, which means that out of 56 marbles, 49 are blue. 56-49=7, so there are 7 red marbles. Hope this helps! :)
Answer:
Sorry need points for help
Step-by-step explanation:
combining x and -4.87x on the left,
adding -35.39 to both sides we get,
dividing both sides by -3.87, we get
Answer : x=-29.354
We can ad like terms basically
x^2 can be added to 2x^2 but not 3 or 2x^4
so we have
(x^3+x^2)+(2x^3-5x^2)
using associative and commutative property
remove the parenthaseese
x^3+x^2+2x^3-5x^2
and move them around so group the like terms
1x^3+2x^3+1x^2-5x^2
add
3x^3-4x^2
tada
