You have to solve the two equations by eliminating x or y
<span>2x+5y=10 </span>
<span>x-3y=1 </span>
<span>Multiply all terms of second equation by two and subtract from first equation, thus eliminating x </span>
<span>2x+5y-2x+6y=10-2 </span>
<span>11y=8 </span>
<span>y=8/11 </span>
<span>x=3y+1=3* 8/11+1=25/11 </span>
<span>11x+11y= 11*25/11+ 11*8/11 </span>
<span>= 25+8=33</span>
The steps for dividing fractions are:
Keep
Flip
Change
As in, keep the first fraction the same (we can write 7 as 7/1 to make it a fraction), flip the second fraction upside down, and then change the division symbol to a multiplication symbol. This gives you:
7/1 × 5/6
And to multiply fractions, you multiply across, which means that you do (7 × 5 = 35)/(1 × 6 = 6). Your answer, therefore, is 35/6, or, as a mixed number, 5 5/6. I hope this helps!
Answer:
If you want a fraction it would be -1/4 if you want a decimal it would be -0.25
Step-by-step explanation:
You have to take your X2- your X1 and you take your Y2- your Y1
Then you divide Y/X
So Your X2 would be 6 and X1 would be -6 and that would become a positive 12.
And your Y2 would be 2 and your Y1 would be 5 which would give you -3 when you subtract.
Then divide it 12/-3 which would give you -1/4 since you have to flip your fraction.
I hope this helps
Answer:
multiply 7 by 42
= 294
42 x 7 can be done as mental math, but that is challenging for some people.
Answer:
I believe around 3 times
Step-by-step explanation:
Because if we round we would get
150÷50=3
Hope this helps!!
