Answer:
The time taken by both boys to complete work = 2.73 hours
Step-by-step explanation:
Time taken by rayan to dig hole
= 5 hours
Time taken by castel to dig hole
= 6 hours
Now the time taken by both persons working together
![T = \frac{T_{1} T_{2} }{T_{1} + T_{2}}](https://tex.z-dn.net/?f=T%20%3D%20%5Cfrac%7BT_%7B1%7D%20T_%7B2%7D%20%20%7D%7BT_%7B1%7D%20%2B%20T_%7B2%7D%7D)
Put all the values in above formula we get
![T = \frac{ 30 }{6 + 5}](https://tex.z-dn.net/?f=T%20%3D%20%5Cfrac%7B%2030%20%7D%7B6%20%2B%205%7D)
![T = \frac{30}{11}](https://tex.z-dn.net/?f=T%20%3D%20%5Cfrac%7B30%7D%7B11%7D)
T = 2.73 hours
Therefore the time taken by both boys to complete work = 2.73 hours
-1 = (x-1)/3
(multiply both sides by 3)
-3 = x-1
(add 1 on both sides)
x=-2
1.5 is lesser than 0.5. Oh, wait nevermind I meant to say -1.5 is lesser than 0.5
Answer:
<h2>10 + 5x ≤ -15</h2>
Step-by-step explanation:
<u>sentence</u> <u>—————————-——————></u> <u>math expression</u>
Ten increased by —————————————> 10 +
the product of a number ‘x’ and 5 —————> 5x
less than -15 —————————-——————> ...... ≤ -15
<em>Conclusion</em>:
10 + 5x ≤ -15
Answer:
C: g(x) = 3x^2
Step-by-step explanation:
Note that (1, 1) is on the graph of f(x) and that (1, 3) is on the graph of g(x). This indicates that the coefficient of x^2 is 3 for g(x).