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Lelechka [254]
2 years ago
6

What is -2f + 4/5f ?

Mathematics
1 answer:
Mademuasel [1]2 years ago
7 0
8-4/5f=-14-2f
Multiply both sides by 5
40-4f=-70-10f
Move variable to left and change signs
-4f+10f=-70-40
Combine like terms
6x=-70-40
6f=-110
Divide both sides by 6
F=-55/3
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Whats the answer please hurry
rewona [7]
Give me points ahahahah thank you sir
8 0
3 years ago
Harold wrote this equation to model the level of water in a pool over time. The variable x represents time in hours. f(x) = 3,50
lina2011 [118]

Answer:

The water level is falling.

The initial level of water in the pool was 3,500 units

The water was 2,600 units high after 4 hours.

Step-by-step explanation:

The given function that models the water level is

f(x)=3,500-225x

where x represents time in hours.

The function represents a straight line that has slope m=-225

Since the slope is negative, it means the water level is falling.

The initial level of water in the pool can found when we put x=0 into the function.

f(0)=3,500-225(0)


f(0)=3,500, hence the initial level is 3,500.


To determine the level of water in the pool after 14 hours, we put x=14 into the equation to get;

f(14)=3,500-225(14)

f(14)=3,500-3150


f(14)=350


To determine the water level after 4 hours we put x=4

f(4)=3,500-225(4)

f(4)=3,500-900

f(14)=2,600


4 0
3 years ago
Read 2 more answers
Four minus x , multiplied by 15
earnstyle [38]
It would be 4-15x
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3 0
3 years ago
Find x. 895852 = -70x + 789/9(3^3 × 6) - 30
snow_lady [41]

Answer:

x=  88168/7

Hope it helps!

 

7 0
2 years ago
HELP NOW PLZ!
Oduvanchick [21]
D is the correct answer.
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3 years ago
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