Okay thanks I’ll try to help you
Step-by-step explanation:
x+y=5
3x-2y+5=0
3x-2y= -5
x+y=5...... equation 1
3x-2y= -5....... equation 2
there fore make x the subject of the formula in equation 1
x=5-y.. equation 3
substitute equation three in equation 2
3(5-y)-2y=-5
15y-3y-2y=-5
10y=-5
divide both sides by 10
y=-5/10
y=-½
substitute y into equation 1
x+(-½)=5
x=5+½
x=5½
x=5½,y= -½
Answer:
2.99
Step-by-step explanation:
<em>Note: [log10 = 1]</em>
<em> [log8 = 0.903089987]</em>
2log10 = 0.3010
<em> </em>22log8 = x
Therefore:
<em>2log10 x = 22log8</em>
<em>x = 2.99</em>
<em> </em>
Answer:
4 laps
Step-by-step explanation:
Isaac ran 4 laps.
The answer is letter 4 you can prove this replacing each pair in the function y=3x+5, and it is a straight line because the greatest exponent of this function is 1.
