The answer isn’t C. Please help

Please answer ASAP will give brainliest!!!!!!!

nlexa [21]

Answer: No he is not correct the answer is 6 3/8

Step-by-step explanation: so what you have to do is add the 2 numbers you it should look like this(2 3/4+ 3 5/8) then you want to add the 2 and the 3 and add the 3/4 and 5/8 it should look like this (5+11/8) then you want to converse the number to a mixed number it should look like this (5+1+3/8) then you should add the

4 0

3 years ago

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Help help help and help

Alexus [3.1K]

Answer:

x= 8.5 and y= 2

Step-by-step explanation:

6 0

3 years ago

The Lees have 3 children. The oldest is twice as old as the youngest. The middle is 5 years older than the youngest. If the sum

valina [46]

Oldest = 2 times Youngest -> O = 2*Y
Middle = Youngest + 5 -> M = Y+5
All of them together is 57 -> O + M + Y = 57

So you have these three equations:
(1) O = 2*Y
(2) M = Y+5
(3) O + M + Y = 57

Now you want to reduce the number of variables. You can change the second equation to be Y = M-5 and then plug in "M-5" wherever there is currently a Y:

(4) O = 2*(M-5) = 2*M - 10
(5) O + M + (M-5) = 57
which becomes O + 2M = 62

Then you plug in the "O" equation (4) into (5) which gives you
(2M-10) + 2M = 62 which reduces to 4M = 72.

So now I know M is 18.
I can now plug that into my other equations:
(4) O = 2*18 - 10 which means O = 26.
Now I plug that into (1) from the top:
26 = 2*Y which becomes 13 = Y

So now I have O, Y, and M
Oldest is 26
Middle is 18
Youngest is 13

Reading the sentence again, you can see that this makes sense.

4 0

3 years ago

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If you bought a stock last year for a price of $63, and it has risen 17% since then, how much is the stock worth now, to the nea

IgorLugansk [536]

73.71 because 63*.17=10.71, so 63+10.71=73.71

4 0

3 years ago

Examine the system of equations. Do you think the lines will intersect? Explain.

Tresset [83]

Considering the definition of a system of linear equations, the lines intersects at the point (0,-7).

<h3>System of linear equations</h3>

A system of linear equations is a set of two or more equations of the first degree, in which two or more unknowns are related.

Solving a system of equations consists of finding the value of each unknown so that all the equations of the system are fulfilled. That is to say, the values of the unknowns must be sought, with which when replacing, they must give the solution proposed in both equations.

The unknowns established in a system represent the point where the lines intersect in a Cartesian plane (x,y).

The system of equations to solve is:

$\left \{ {{y=2x-7} \atop {y=x-7}} \right.$

There are several methods to solve a system of equations, it is decided to solve it using the substitution method, which consists of clearing one of the two variables in one of the equations of the system and substituting its value in the other equation.

In this case, the "y" variable is already isolated in the first equation. Substituting in the second equation you get the expression:

2x -7= x-7

Solving:

2x -x= -7 + 7

Substituting this value in the first equation you obtain the value of y:

y=2×0 -7

y= 0 -7

So, the solution of the system of equations is (0,-7). That is, the lines intersects at the point (0,-7).

Learn more about system of equations:

<u>brainly.com/question/13997560 </u>

<u>brainly.com/question/1836777 </u>

<u>brainly.com/question/1995493 </u>