<span>Probability that a person is math phobic = 19% = 19/100
a) the probability that both are nervous around strangers</span>
<span>P (A)
= 19/100 * 19/100
= 361/10000
= 0.0361</span>
<span>
b) The probability that both are not nervous around strangers</span>
<span>P (B) = 81/100 * 81/100
= 0.6561</span>
<span>
The probability that at least one person is nervous around strangers i.e. P'(B)
= 1 - P(B)
= 1 - 0.651
= 0.3439</span>
Cara's lost 3 and the expression will be k-7+4
Answer:
The discount was $25.50 off and the shoes will now cost $59.50
Step-by-step explanation:
Solution:
<u>Note that:</u>
<u>Using cross multiplication:</u>
- (3x)/20 = (4x + 2)/28
- => (3x) × 28 = (4x + 2) × 20
<u>Simplifying both sides:</u>
<u>Subtracting 80x both sides:</u>
- 84x = 80x + 40
- => 84x - 80x = 80x + 40 - 80x
<u>Simplify the LHS:</u>
- => 84x - 80x = 40
- => 4x = 40
- => x = 10
