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motikmotik
3 years ago
11

X-3y=16 4x-y=19 Substitution / Will mark brainliest ASAP

Mathematics
1 answer:
torisob [31]3 years ago
7 0

Answer:

y = 4(1) - 1 = 3

Step-by-step explanation:

You might be interested in
F(x)=-3x+21,find x when f(x)=6
balu736 [363]

Answer:

x=5

Step-by-step explanation:

F(x)=-3x+21,

f(x)=6 = -3x+21

6 = -3x+21

Subtract 21 from each side

6-21 = -3x+21-21

-15 = -3x

Divide each side by -3

-15/-3 = -3x/-3

5 = x

6 0
3 years ago
[50 Points each!!!] and Brainliest!
beks73 [17]

Answer:

<u><em>The difference between iPhone 11 and Spinal cord repairence is 99,300$</em></u>.

Step-by-step explanation:

To be honest, this is a really weird question.  But a<em><u> spinal cord injury</u></em> can cost up to <u><em>100,000$ a year</em></u>.  And an<u><em> iPhone 11 cost around 700$</em></u>.  It really just depends on what repairence the person got, but if I am wrong then I hope you the best with your question lol.  And since Alex didnt break his phone, you wouldnt count the repairs for the iPhone 11.

8 0
3 years ago
Enter the value of p so the expression 5/6-1/3nis equivalent to p(5-2n).
SIZIF [17.4K]
Take LCD of 6 and 3 = 6 is the lcm
5/6 -2/6n 
(5-2n)/6.

Now, what number can be multiplied to the right side of the equal sign to get the value of P

The answer is 1/6 as the left side is divided by 6, so multiply the right side by 1/6 to make it equivalent.
6 0
3 years ago
Everyone please answer one of these my birthday tuesday but i might be in trouble if i fail this :(
Andreas93 [3]

Answer:

11. b

10.d

9.c

7.b

1.d

the rest I can't see clearly

please give brainiest

Step-by-step explanation:

11.

3/x-4=7/x

*cross multiply

3x=7 (x-4)

3x=7x-28

28=7x-3x

28=4x

x=7

10.

SOHCAHTOA

Cos☆=11/14

cos^-1 (11/14)

☆=38.21 degrees

9.

MLN CONGRUENT TO WBN

ML/WB=LN/BN=MN/WN

LN/BN=10/6

ML/WB

24/x=10/6

24x6=10x

144÷10

=14.4

6^2+14.4^2

=243.36

squareroot

=15.6

8 0
2 years ago
Which is the initial value that shrinks an exponential growth function by 50%?
ValentinkaMS [17]
Suppose that the exponential growth function is  y = 4^x.

If x = 1, then y = 4^1 = 4.
If x = 3, then y = 4^3 = 64.

Let the initial value be 1/2.

The growth function is now y = 1/2 * 4^x.

If x =1, then y = 2 which is half of the y value before adding the 1/2.

If x = 3, then y = 1/2 * 64 = 32.

Answer: 1/2
7 0
3 years ago
Read 2 more answers
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