21. the values of x such f(x) < g(x):
22. The values of x such g(x) < 0:
Answer:
25
Step-by-step explanation:
25 has 2 digits
25 is less than 30
25 is odd
2+5 = 7
It is 25.
Answer:
a) 376.66
b) Option 2: No, the result from part (a) could not be the actual number of adults who said that rising gas prices are "quite annoying" because a count of people must result in a whole.
c) 377
d) 40.77%
Step-by-step explanation:
a) 37% of 1018 is;
37/100 × 1018 = 376.66
b) Thus, the result in a above is not a whole number. Thus;
No, the result from part (a) could not be the actual number of adults who said that rising gas prices are "quite annoying" because a count of people must result in a whole.
c) from a above a, we got a value of 376.66.
Now the actual number would be preferably an integer. Thus, actual number is approximately 377.
d) percentage of respondents said that cellular phones are not at all harmful = 415/1018 × 100% = 40.77%
If the angles are congruent then m∠ACB is 50°.
4x+4=6x-14
-4 -4
4= 2x-14
+14 +14
18=2x
x=9
Plug into one of the expressions.
4(9)+4
46+4
50
Sadly I do not know the scale factor rule yet. Just one lesson ahead :(
I hope I helped on first!
Answer:11
Step-by-step explanation:
Boys : girls=7:1
Sum of ratio=7+1=8
Let number of girls be y
Then number of boys=y+66
Total number of pupils=y+y+66
Total number of pupils=2y+66
girls only=(girl ratio)/(sum of ratio) x (total number of pupils)
y=1/8 x (2y+66)
Cross multiply
y x 8=2y + 66
8y=2y + 66
Collect like terms
8y-2y=66
6y=66
Divide both sides by 6
6y/6=66/6
y=11
There are 11 girls
