Answer:
x=+30
Step-by-step explanation:
1200-5(3x+30)=600
We move all terms to the left:
1200-5(3x+30)-(600)=0
We add all the numbers together, and all the variables
-5(3x+30)+600=0
We multiply parentheses
-15x-150+600=0
We add all the numbers together, and all the variables
-15x+450=0
We move all terms containing x to the left, all other terms to the right
-15x=-450
x=-450/-15
x=+30
Answer:
x=2 , x=(-1)
Step-by-step explanation:
y=x^2+3----------1
y=x+5-------------2
1=2
x^2+3 = x+5
x^2-x-2=0
(x-2)(x+1)=0
x=2 , x=(-1)
Answer:
870 cm³
Step-by-step explanation:
V= lwh
V= 15cm*5.8cm*10cm= 870 cm³
To solve we first need to simplify the equation
3^2 [5 + ( 2 - 4)^2] - 15 is simplified to (3^2)(5 + (2 - 4) ^2] - 15
After you reduce (3^2)(5 + (2 - 4) ^2] - 15 you get 66
The answer is <span>3^2 [5+ (2-4)^2} - 15 = 66
Hope that helps! - Alyssa ;)
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Answer: 0.053
Step-by-step explanation:
n(r) = 7
n(b) = 8
n ( g) = 5
Total number of marbles = 20
The probability that both marbles drawn will be green will be
The probability of the first being green = 5/20 and the probability that the second marble is green = 4/19.
We will multiply the two together , we have
5/20 x 4/19 = 20/380 = 0.05263157895
Therefore : the probability, to the nearest 10th of a percent, that both marbles drawn will be green will be 0.053
