to be sure that 2 of them will be blue i have to select 7+2=9 balls
7+8=15 balls in the urn
P=9/15
to be sure that 4 of them will be yellow i have to select 8+4=12 balls
P=12/15
Fill in the blank with equation.
An equation is nearly the same thing as an expression. However, the dofference is that equations have an = sign while expression do not.
Answer:
Step-by-step explanation:
$6/(2 DVDs) = $3/DVD, and $8/(4 CDs) = $2/CD
a DVD costs $3
a CD costs $2
Lynn bought 4 DVDs and 2 CDs for 4×$3 + 2×$2 = $16.
Pierre bought d DVDs and c CDs for $20.
d is 0, 2, 4, or 6
c = (20-3d)/2
(d,c) = (0,10), (2,7), (4,4), or (6,1)
Answer:
Step-by-step explanation:
hello :
12x^3-9x²-4x+3= 3x²(4x-3)-(4x-3)
60% is equal to 3/5.
1/5 of 150 is 30.
3/5 of 150 is 90.
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Answer:
60% of 150 is 90.
