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ser-zykov [4K]
3 years ago
12

Please help with function notation question (see attached file)

Mathematics
1 answer:
adell [148]3 years ago
3 0

Answer:

3.5 and 5

Step-by-step explanation:

Given

f(x) = \frac{x+5}{x}

To evaluate f(2) substitute x = 2 into f(x)

f(2) = \frac{2+5}{2} = \frac{7}{2} = 3.5

Similarly for f^{-1}(x)

f^{-1} (2 ) = \frac{5}{2-1} = 5

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Members of a softball team raised $1319.25 to go to a tournament. They rented a bus
harina [27]

Answer:

13 players

Step-by-step explanation:

Money Raised=RentedBus+Meals

1319.25=776.50+41.75p (p is for the number of players)(Now we solve for x)

Subtract 776.50 from both sides:   542.75=41.75x

Divide both sides by 41.75:   13=x

Remember that x is for the number of players so there'll be 13 players going to the tournament.

7 0
3 years ago
What is the ultimate goal when solving equations? What do you want your final answer to look like?
STALIN [3.7K]

Answer:

\huge\boxed{\text{To get x on one side of the equation:} \ \ x = ...}

Step-by-step explanation:

When we solve for an equation, our goal is to find the value of the variable. Any variable can be used, but for the time being let’s assume we use x.

We can algebraeically solve equations until we get the value of x - in which we will have x equal to something.

Say we have the equation 5x+5=20. Our goal is to find the value of x. <u>We can do this by getting x isolated on one side so we have something equal to x</u>.

We can subtract 5 from both sides and divide both sides by 5.

5x=15\\\\x=3

We now know the value of x since it’s on one side of the equation.

Hope this helped!

5 0
2 years ago
A grapefruit is 8% heavier than an orange, and an apple is 10% lighter than the orange.
likoan [24]
Weight of an grapefruit=weight of an orange+8% weight of an orange
weight of an apple=weight of an orange -10% weight of an orange

a.<span>By what percentage is the grapefruit heavier than the apple?
We should find the connection between grapefruit and an apple. We know the connection between the weight of a grapefruit and an orange, we know the connection between an orange and an apple, so this means we know the connection between a grapefruit and an apple.
</span>
weight of an grapefruit=weight of an <span>orange+8% weight of an orange
</span>weight of an orange=weight of an apple<span> +10% weight of an apple
</span>
-> weight of an grapefruit=weight of an apple+10% weight of an apple + 8%(weight of an apple+10% weight of an apple)= weight of an apple + 18% weight of an apple + 2% weight of an apple= <span>weight of an apple + 20% weight of an apple 

</span><span>b.By what percentage is the apple lighter than the grapefruit?
</span>weight of an grapefruit=weight of an apple + 20% weight of an apple<span> 
</span>
-> The apple ts 20% lighter than the grapefruit.
8 0
3 years ago
Read 2 more answers
-0.5,1.25,-1/3,0.5,-5/3 ordered from least to greatest
vampirchik [111]

Answer:

Step-by-step explanation:

-5/3,-0.5,-1/3,0.5,1.25

8 0
2 years ago
Henry's house weighs 65,000 pounds. He removes all of his belongings which weigh 5,000 pounds. Movers are using Crib Jacks to li
adell [148]
Since 1 ton is 2,000 lbs, each Crib Jack can life 30,000 lbs. It's going to take 2 Crib Jacks, because the extra 5,000 lbs in belongings were removed, leaving the house at a weight of 60,000 lbs. 
7 0
3 years ago
Read 2 more answers
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