In solving this type of problem always look for the person you don't have any information about in this case it's Eve therefore Eve is X, Justin has $7.50 more than Eve, therefore
X+$7.50 is Justin and Emma has $12 less than Justin, therefore subtract $12 from Justin X+$7.50-$12, since the total amount is $63 add all the numbers and equal them to $63.
x+7+x+7.5-12+ x=63
3x+3=63
3x=60
x=20
Plug in the x for each person
therefore Eve=$20
Justin=$20+$7.50= $27.50
Emma has $12 less than Justin therefore $15.50
Add all the money and it equals $63
Answer:
1. 60% (decrease by 40%)
3. 30% (decrease by 70%)
5. 250% (Increase by 150%)
7. 40% (Decrease by 60%)
9. 171.4% (increase 71.4%)
11. 152.6% (Increase by 52.6%)
Step-by-step explanation:
1. 20x = 11 = 0.55 rounds to 0.6 => 60%
3. 56 x = 14 = 0.25 rounds to 0.3 => 30%
5. 18x = 45 = 2.5 => 250%
7. 126x = 48 = 0.38 rounds to 0.4 => 40%
9. 42x = 72 = 1.714 => 171.4%
11. 95x = 145 = 1.526 => 152.6%
Answer:
C is the correct answer
Step-by-step explanation:
A) 25-18 which equals 7
7 is NOT bigger than 8
B) 0.5x18= 9
7 is NOT bigger than 9
C) 18÷6=3
3 IS bigger than 2 so is correct
D) 18÷4= 4.5
4.5 is NOT bigger than 3
hope this helps!
Answer: Option A.
Step-by-step explanation:
The joint probability for two different things is equal to the product of the individual probabilities.
For contractor A we have:
Prob that the job is done in time = 0.95
Prob that the job is done within the budget = 0.97
Prob of both things at the same time P = 0.95*0.97 = 0.92
For company B we have:
Prob that the job is done in time = 0.98
Prob that the job is done within the budget = 0.93
Prob of both things at the same time P = 0.98*0.93 = 0.91
Then the best contractor is contractor A, (with a joint probability of p = 0.92) and the correct option is option A.
