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vampirchik [111]
2 years ago
14

F(x) =17x and g(x) = 4x. Find f(x)-g(x) when x=3

Mathematics
1 answer:
bogdanovich [222]2 years ago
8 0

Answer:

39

Step-by-step explanation:

f(x)=17x

f(3)=17(3)

f(x)=51

g(x)=4x

g(3)=4(3)

g(x)=12

f(x)-g(x)

51-12= 39

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At noon, a tank contained 10 in. of water. After several hours, it contained 7 in. of water. What is the
Olin [163]
-30% answer is right because it lost 3 inches and 30 percent of 10 is 3.

Answer: -30%
5 0
2 years ago
Leila puts an integer into the "In" box of each machine.
kykrilka [37]

The machines represent equivalent expressions.

The output produced by both machines is 372

The equation represented on machine A is:

\mathbf{y = 2(5x + 3) - 24}

The equation represented on machine B is:

\mathbf{y = 4(2(x + 11) - 7)}

Where: x and y represent the inputs and the outputs, respectively

When the outputs are the same, it means:

\mathbf{y = y}

So, we have:

\mathbf{2(5x + 3) - 24 = 4(2(x + 11) - 7)}

Open brackets

\mathbf{10x + 6 - 24 = 8x + 88 - 28}

\mathbf{10x - 18 = 8x + 60}

Collect like terms

\mathbf{10x - 8x = 18 + 60}

\mathbf{2x = 78 }

Divide both sides by 2

\mathbf{x = 39 }

Substitute 39 for x in \mathbf{y = 2(5x + 3) - 24}

\mathbf{y = 2 \times (5 \times 39 + 3) - 24}

\mathbf{y = 372}

Hence, the output produced by both machines is 372

Read more about equivalent expressions at:

brainly.com/question/15715866

4 0
2 years ago
A number is 6 greater than 1\2 another number. If the sum of the numbers is 21,find the numbers.
Lemur [1.5K]
Let 1 number equal x
<span>Let the other number equal 1/2x + 6

x + (1/2x + 6) =21
1 & 1/2 x + 6 =21
1 & 1/2 x =15
</span>
5 0
3 years ago
7=-5/2 x + b<br>what is the value of b and please explain.​
Talja [164]

Answer:

b = 5/2x + 7

Step-by-step explanation:

b + (-5/2x) = 7

b - 5/2x = 7

b = 5/2x + 7

3 0
2 years ago
A) {y=2x
sladkih [1.3K]

We can see that

both lines intersects at origin

so, the solution is x=0 and y=0

now, we will check each options

option-A:

y=2x

y=-4x

now, we can set them equal

and then we can solve for x

-4x=2x

6x=0

x=0

now, we can find y

y=2*0

y=0

so, solution is x=0 and y=0

so, this correct...........Answer


5 0
3 years ago
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