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myrzilka [38]
3 years ago
15

How to do this equation by elimination 8x +14y= 4 and -6 + -7y =-10

Mathematics
2 answers:
svet-max [94.6K]3 years ago
5 0
8x + 14y = 4
-6x - 7y=-10  / *2

8x + 14y=4
-12x -14y= -20
_________________
-4x=-16 => x=4; y= -2
Leokris [45]3 years ago
4 0

Answer:

y=4/7, x=-1/2

Step-by-step explanation:

Elimination is when you add the equations together

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Please help, math work
NikAS [45]
Y = 3x + 5 because the slope is 3/1 and 0 = 5
6 0
3 years ago
4) Adult tickets for the evening show at XD Theater are $11 and children's tickets are $Belf the theater seats 250 people, how m
kozerog [31]

Omitted value: The price of children ticket was omitted in the question, so i used $8 to solve. You can input the correct value and solve the same way following the steps.

Answer: 100 adult tickets  must be sold.

Step-by-step explanation:

step 1

let  x represent Adults

AND y represent children

Since the theater seats 250 people we have that

x+y = 250..... equation 1

Also price for Adult ticket = $11

and  price children ticket =$8

With total sales at $2,300, we have that

11x + 8y= 2300----- equation 2

Step 2

Making y subject in equation 1

' x+y = 250

y= 250-x

Putting y= 250- x in equation 2

11x + 8(250-x)= 2300

11x +2000-8x= 2300

11x -8x = 2300-2000

3x= 300

x 300/3

x= 100.

To find y

 x+y = 250

100+y=250

y=250-100

y=150

Therefore 100 adult tickets and 150 children tickets must be sold to get a total sales of $2,300

5 0
3 years ago
An 12-ounce bottle of orange juice costs $2.64. What is the cost of the orange juice per ounce?
8_murik_8 [283]

Answer:

22 cents per ounce

Step-by-step explanation:

3 0
2 years ago
Suppose △LMN≅△PQR .
Tanya [424]
First four answers are correct as congruent parts of congruent triangles are congruent but L Is not the opposite to M so they wouldn’t be congruent nor does NL or PQ have the same connection
6 0
3 years ago
What is the value of the expression (23 — 1) + 32?​
wlad13 [49]

Answer:

54

Step-by-step explanation:

Since there are parantheses or however you spell them, by using PEMDAS, we do the parantheses first.

23 - 1 = 22

Now, we do the addition.

22 + 32 = 54

4 0
3 years ago
Read 2 more answers
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