Answer:y=6.61,x=-6.46
Step-by-step explanation:
3x+7y=-26(×5)
-
5x+3y=-14(×3)
=15x+35y=-130
-
15x+9y=-42
subtracting the 2 equations =15x-15x+35y-9y=-130-(-42)
=26y=172
y=172÷26
y=6.61
substitute y in the first equation=3x+6.61=-26
3x=-26+6.61=-19.39
x=-19.39÷3
x=-6.46
Answer:
$27.70
Step-by-step explanation:
v=video games d=DVDs
7v + 4d =
7(2.3) + 4(2.9) = 27.7
Solution steps:
1. Add the two given fractions.
2. Subtract the sum from 10 to find your answer.
Answer:
The probability of seeing a person wearing black shoes before seeing a person wearing white ones = 60%
Step-by-step explanation:
People watched walking down the street = 100%
People wearing black shoes = 1/2 = 50%
People wearing white shoes = 1/3 = 33.33%
People wearing red shoes = 1/6 = 16.67%
Probability of black shoes to white shoes = percentage of persons wearing black shoes/sum of the percentages of people wearing black and white shoes)
= 50% : 33.33%
= 60% (50%/83.33%)
When expressed in ratio terms, it means that you will see 1.5 (50%/33.33% or 1.5 : 1) persons wearing black shoes before you see a person wearing white shoes.
Answer:
38.91.
Im not sure but let me know if it's wrong
round it to 34%
