Answer:
4) 7.9%
Step-by-step explanation:
Given:
% of milk chocolate = 70%
% of white chocolate = 30%
Total number of chocolate = 20
Number of milk chocolate:
Number of white chocolate:
From the calculations, we now know there are 14 milk chocolates and 6 white chocolates.
2 white chocolates are picked at random without replacement.
Probability first chocolate picked was white:
Probability second chocolate picked was white:
To find probability that both of them are white chocolates, multiply probability of the first and second.
0.3 * 0.2632 = 0.07896
≈ 0.079
Convert to percentage by multiplying by 100.
0.079 * 100 = 7.9%
The probability that they are both
white chocolate is 7.9%
This would be -19x because of the minus it makes the 25 a negative while the 6 is a positive and a negative + positive = negative in this case
Rewrite Equations
x=10; y=−5x+30
Step: Solve x=10
for x: x=10
Step: Substitute
10 for x in y=−5x+30:
y=−5x+30
y=(−5)(10)+30
y=−20
(Simplify both sides of the equation)
Answer: x=10 y=-20 (10,-20)
Answer:
c: scarcity
Step-by-step explanation:
Answer/Step-by-step explanation:
8. m<DEF = 122°
m<FEG + m<DEF = 180° (Angles on a straight line)
m<FEG + 122 = 180 (Substitution)
m<FEG = 180 - 122
m<FEG = 58°
9. m<BOC = 27°
m<AOC = 47°
m<AOB + m<BOC = m<AOC (angle addition postulate)
m<AOB + 27 = 47 (substitution)
m<AOB = 47 - 27 (Subtraction property of equality)
m<AOB = 20°