7/6 isn’t greater than 1. 7/6 would be greater
Answer:
- It would take them 4.8 minutes if they worked together.
Step-by-step explanation:
The rates of work are additive. That is, <em>the total rate when Anjali and Shayna work together is equal to the sum of the individual rates when they work separetely</em>.
1. <u>Rate of work of Anjali</u>:
- Eight minutes to wax a floor: r₁ = 1 floor / 8 minutes = 1/8
2. <u>Rate of work of Shayna</u>:
- Twelve minutes to was the same floor: r₂ = 1 floor / 12 minutes = 1/12
3. <u>Rate of work if they worked together</u>:
- r = r₁ + r₂ = 1/8 + 1/12
- steps to add the fractions:
- least common denominator: 2³ · 3 = 24
- r = 1/8 + 1/12 = 3/24 + 2/24 = 5/24 = 0.2083 ...
- that mean 5 floors/24 minute = 0.2083... floors/minute
4. <u>Time to wax a floor if they worked together</u>
- The time to wax one floor (minutes per floor) is the inverse of the rate, floors per minute:
- time = 1 / r = 24/5 = 4.8 minutes per floor.
Answer:
136
Step-by-step explanation:
(4+6+7)/(7-4) × 24
= 17/3 × 24 = 136
Answer:
Therefore
m∠Y = 41.1°
Step-by-step explanation:
Given:
In Δ YSE ,
m∠S = 70°
YE = 10 = side opposite to ∠Y
SE = 7 = side opposite to ∠S
To Find:
m∠Y = ?
Solution:
In Δ ABC, Sine Rule says
So here In Δ YSE,
substituting the given values we get
Therefore
m∠Y = 41.1°
Answer:
B) Likely
Step-by-step explanation:
Unlikely = < 50%
Likely = > 50%
Certain = 100%
Equally likely = 50%
