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Reptile [31]
3 years ago
7

Solve using substitution for x and y 5x+y=16 y=2-3x

Mathematics
2 answers:
emmasim [6.3K]3 years ago
4 0
X = 7 :) Look at the picture!

valentina_108 [34]3 years ago
3 0

Answer:

X = 7   Y = -19

Step-by-step explanation:

If you want to solve this equation by substitution then you have to put the second equation in, so it will look something like this

5x + 1(2-3x)=16

Apply distributive property to solve.

Once you find x, plug it in to find y

To double check your work, you can plug the coordinated values back in

-19 = 2 - 3(7)

-19 = 2-21

This is true, so our solution is correct.

Hope this helps :)

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PLEASE HELP ASAP! SHOW WORK IN EASY WAY!​
lora16 [44]

40000 = 1 second

Multiply both sides by 60 to see how much in one minute

2,400,000 = 1 minute

4 0
3 years ago
Show all work to identify the discontinuity and zero of the function f of x equals 4 x over quantity x squared minus 16
Leto [7]

Answer:

Discontinuity of function occurs when x = 4 or x = -4

zero of function is when x=0

Step-by-step explanation:

We are given:

f(x) = \frac{4x}{x^2 - 16}

Discontinuity of the function occur when the denominator is equal to zero.

So, we need to find the values of x that makes the denominator zero.

The denominator is x^2 - 16

x^2 - 16 =0

x^2 = 16

x = ± 4

So, if the value of x = 4 or value of x=-4 then the function will be discontinuous.

Zero of the function i.e f(x)=0

So, Putting the function equal to zero and finding the value of x

\frac{4(x)}{(x)^2 - 16}=0\\4x =0((x)^2 - 16)\\4x=0\\x=0

So, zero of function is when x=0

5 0
3 years ago
In collin county there are approximately 834,000 people. If about 30,000 are under the age of 25 what fractional part are above
tresset_1 [31]
Do 30000 divided by 834000 times .1
3 0
3 years ago
2x to the power of 2 divided by 2x to the power of 3
nevsk [136]
X^5 would be the answer i think.
8 0
3 years ago
Round 0.033974361 to five decimal places<br> Places
dalvyx [7]

Answer:

.03397

Step-by-step explanation:

The fifth decimal is 7, and the number after that is 4. Because 4 is not greater than or equal to 5, we do not round up the 7.

4 0
3 years ago
Read 2 more answers
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