Hey!
There are 9 birds in all. 5 of them are ducks. That means the fraction will be:
<em>That means your answer is 5/9</em>
Answer:
The answer is 17
Step-by-step explanation:
<h3><u>Given</u>;</h3>
- a² – 4b + 2c
- a = 1, b = (-3) and c = 2
<h3><u>To </u><u>Find</u>;</h3>
- The value of a² – 4b + 2c
Now, Evaluate
a² – 4b + 2c
(1)² – 4(-3) + 2(2)
1 + 12 + 4 = 17
Thus, The value is 17
<u>-TheUnknownScientist 72</u>
Answer: angle l
Step-by-step explanation:
Answer:
8 hours
Step-by-step explanation:
If two people shovel at the same rate, they can do the job in half the time.
We have ...
(Dad) + (Mom + Isabel) ⇒ 2 hours . . . . half as long as Dad alone
Dad ⇒ 4 hours
This tells us that ...
(Mom +Isabel) = 4 hours
We know that ...
Isabel ⇒ 2×4 hours = 8 hours . . . . twice as long as Mom + Isabel
So, we conclude ...
Mom ⇒ 8 hours
It would take Mom 8 hours to shovel the driveway herself.
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<em>Additional comment</em>
The rates add when expressed as driveways per hour.
total = Dad + Mom + Isabel
1/2 = 1/4 + 1/m + 1/(2·4)
1/m = 4/8 -3/8 = 1/8
m = 8 . . . . . it takes Mom 8 hours by herself.
Basically add the two negative number so -13 + -123 would be -136