9514 1404 393
Answer:
40·713 and 8·713
Step-by-step explanation:
When this multiplication is carried out "by hand", the usual sum of partial products is ...
8·713 + 40·713
Answer:
x=1/2, y=-2. (1/2, -2).
Step-by-step explanation:
4x-2y=6
y=-2x-1
-------------
4x-2(-2x-1)=6
4x+4x+2=6
8x+2=6
8x=6-2
8x=4
x=4/8
simplify
x=1/2
y=-2(1/2)-1
y=-2/2-1
y=-1-1
y=-2
Answer:
when adding you just line the decimals up like this, let's say you had to add 1 to 2.58.
2.58
+ <u> 1 .00</u>
3.58
when multiplying you might have to move it, say you had to multiply 1.5 by 2.2. (you don't have to line up the decimals like with addition)
1 .5
<u> </u><u>×</u><u> 2.2</u>
30
<u> </u><u>+</u><u> 300</u>
3.30
1.5 has one decimal place and 2.2 also has one decimal place so you put those 2 decimal places in your answer.
sorry if this is a bit confusing lol
36 does not belong because it is not a factor of 64
Hope this helps!