MATHEMATICS MIDDLE SCHOOL

Solve the system using combination method to get a solution (x,y)
4x+7y=10
-4x-6y=28

Answers

Answer 1
Answer: \left \{ {{4x+7y=10} \atop {-4x-6y=28}} \right. \n\nadd\ those\ two\ equations\n\ny=38\n\n4x+7y=10\ \ \ | subtract\ 7y\n\n4x=10-7x\ \ \ \ | divide\ by\ 4\n\nx=(10-7x)/(4)=(10-7*38)/(4)=(10-266)/(4)=(-256)/(4)=-64\n\nsolution:\n \left \{ {{y=38} \atop {x=-64}} \right.
Answer 2
Answer: 4x+7y=10\n-4x-6y=28\n-------\ny=38\n\n4x+7\cdot38=10\n4x+266=10\n4x=-256\nx=-64

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HELP PLEASE Sam and George both worked hard over the summer. Together they earned a total of $525. George earned$75 more than Sam.a. Write a system of equations for the situation. Use s for the amount Sam earned and g for theamount George earned.b. Graph the equations in the system. Be sure to label all axes and show your scale.c. Use your graph to determine how much each person earned.

Which equation can you use to solve for x​

Answers

As for a specific equation, I could not say. However, I can tell you how to find x!

The first thing to remember is that a straight line has a 180 degree angle.

You see on the bottom side that we have a 146 degree angle. Now look at the top side. Look closely, and you will see that the two sides are actually identical!

Don't see it? Look at the line on top between x and 56, and imagine it is not there. You see that we actually have the same 146 degree angle, just flipped right side up!

However, this angle does not say 146, but makes an extra line between them with x and 56. This means that x + 56 equals 146!

So we can find x by subtracting 56, from 146, which is... 90!

Brian has 3 basketball cards and 5 baseball cards.  What fraction of Brian's cards are baseball cards?

Answers

5/8 because there are 8 cards in total. 5 of those 8 cards are baseball cards. Therefore 5 out of the 8 cards or 5/8 are baseball cards
three over five                                                                                                          ';/
3\5

Greatest common factor of 69 and 46

Answers

Greatest\ common\ factor\ is\ the\ highest\ number\ by\ witch\ 69\ and\ 46\ncan\ be\ divided\n\n69:3\n23:23\n\n46:2\n23:23\n\nGCF=23\n\nGreatest\ common\ factor\ of\ 69\ and\ 46 \ is\ equal\ to\ 23.
the answer is 23

69 =23x3
46=23x2

Use what you know about rounding to solve the problem.The halfway point between 30 and 40 is 35.
37 is greater than 35, so round 37 up to 40.
Ally records the time as 40 minutes. Please answer I’ll give 20 points

Answers

Answer:

Yes, you are correct, if it is 37 minutes and you are supposed to round, you round up.

Step-by-step explanation:

How do you get to 104 using 2 3 5 8

Answers

( 3 x 5 x 8 ) - ( 2 x 8 ) = 104

What is 1/6 x 4/5 simplified to

Answers

Answer:2/15

Step-by-step explanation:
First we multiply 1/6* 4/5 by multiply the nominator and the denominator to get one fraction.

So 1*4/5*6= 4/30

Next, we simplify this fraction by dividing by 2 to both 4 and 30

So, after dividing we get: 2/15.

So the answer is 2/15.

I hope this helps!
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