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Pepsi [2]
3 years ago
15

What is the value of x in the solution to the following system of linear equations? Y=3x+2 y=x-4

Mathematics
1 answer:
omeli [17]3 years ago
5 0

Answer:-3

Step-by-step explanation:

y=3x+2................(1)

y=x-4......................(11)

Subtract (11) from (1)

y-y=3x-x+2-(-4)

0=2x+2+4

0=2x+6

Collect like terms

0-6=2x

-6=2x

Divide both sides by 2

-6/2=2x/2

-3=x

x=-3

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spayn [35]

Answer:21$

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A radio station had 100 tickets to a concert. They gave away 3thimes as many tickets to listeners as to employees. How many tick
natali 33 [55]

Answer:

They gave away 75 tickets to the listeners and 25 to the employees.

Step-by-step explanation:

If you think about it the function for this would be f(x)=3x+x=100.

3x is the listeners while x is the employees. A simplified version of solving this is doing 100/4 and then 25 times 1 is 25, which is the number of tickets to emplyees.

5 0
3 years ago
12. Consider the general rational equation a/b=c/d
velikii [3]

Part (a)

Answer:  ad = bc

-------------------------

Explanation:

In the equation a/b = c/d, we have b and d in the denominator.

If we multiply both sides by bd, then the denominators will cancel. The expression bd is the same as bd/1.

As a similar example, consider the equation

a/b = 12

if we multiply both sides by b, then we clear out the denominator to end up with a = 12b

As another example, let's consider

a/b = c

Multiplying both sides by b leads to

a = bc

The same idea applies with the denominator d as well.

When going from a/b = c/d to ad = bc, your textbook may refer to this process as "cross multiplication".

=================================================

Part (b)

Answer:  bd is the product of the denominators

-------------------------

Explanation:

Often in math, writing two variables next to each other represents multiplication.

bd is the same as b*d which means "b times d". The term "product" is the result of multiplying two or more values.

b and d are both in the denominator of each fraction, so bd represents the product of the denominators.

8 0
3 years ago
4(-8x + 5) - (-33x - 26)=
irga5000 [103]

Answer:

x+46

hope this helps

6 0
3 years ago
Read 2 more answers
Help pls brain dead rn
polet [3.4K]

Answer:

she spends 50 hours with her baby and 30 hours on math

Step-by-step explanation:

80/2 = 40

Since baby needs to be 10 more you do 40+10 = 50

and 80 - 50 = 30

Hence the answer

at least i think

8 0
2 years ago
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