Answer:
None of the above
Step-by-step explanation:
7/10=70/100
1) 7
2) -1
3) -4
4) y = 3x+9
5) y = x + 6
6) y = -¹/<span>₃x + 10
</span>7) g = 0.36
I have explanations for each of these problems with images at http://imgur.com/a/XviaD. I couldn't attach them because there are 7 questions and a maximum of 5 images.
Answer:
She bought
22 of the 52 cent stamps and
26 of the 23 cent stamps.
Step-by-step explanation:
Given :
Total stamp increase = 48
Let number of 52 cent stamp = x
Number of 23 cent stamp = 48 - x
The cost equation :
0.52*x + 0.23*(48-x) = 17.42
0.52x + 11.04 - 0.23x = 17.42
0.52x - 0.23x = 17.42 - 11.04
0.29x = 6.38
x = 6.38 / 0.29
x = 22
Hence,
She bought 22 ; 52-cent stamps
And (48 - 22) = 26, 23-cent stamps
The answer is D.experimental bias
28 is the "100%" in this equation so all you need to do is take the number that is not the 100% and divide it by the 100% number. so
21/28
comment for more help if you need it for future problems