Answer:
$24
Step-by-step explanation:
calculate 20% of $30 and subtract the discount from the cost price
20% = 
= 0.2, hence
discount = 0.2 × $30 = $6
buying price = $30 - $6 = $24
Simple...
if f(x)= -5x-4 and g(x)=6x-7
And you want f(x)+g(x)
then just add.....f(x)+g(x)
-5x-4+6x-7
1x-11
This is the answer to f(x)+g(x)=1x-11
Thus, your answer.
Answer:
(B) An uncontrolled experiment.
Step-by-step explanation:
In the case of an uncontrolled experiment here all participants are provided the similar treatment and there should be no comparison oppose to any group i.e. controlled
Since in the given situation, there are similar diets are provided to 20 volunteers and it can be that the cholesterol level is decreased after particular time period,
Hence, it is an uncontrolled experiment.
Thus, option B is correct.
X = 40/30 × 7
x = 280/30
x = 28/3
Answer:
Step-by-step explanation:
Gabriela has solved incorrectly. 5 should distributed to 9x & (-8) and 4 should be distributed between x & 2
5(9x - 8) = 4*(x + 2)
5*9x - 5*8 = 4*x + 4*2
45x - 40 = 4x + 8
Subtract 4x from both sides
45x - 4x - 40 = 8
41x - 40 = 8
Add 40 to both sides
41x = 8 + 40
41x = 48
x = 48/41
