Answer:
the x intercept is -4
Step-by-step explanation:
to find the x intercept, set y = 0 and solve for x
y = 5x+20
0 = 5x+20
subtract 20 from each side
-20 = 5x +20 -20
-20 = 5x
divide each side by 5
-20/5 = 5x/5
-4 =x
Answer:
The equation is:
And the solution is:
Step-by-step explanation:
Given
Represent Kiran with K and Tyler with T
Kiran score is represented as:
Also, Kiran scored 223 less than Tyler.
This is represented as:
Substitute 409 for K
Make T the subject
T - 3 = 4v
(T - 3) / 4 = v
Answer:
The relative frequency of mammals in the survey is 30%.
Step-by-step explanation:
Relative frequency is the ratio of the occurrence of a singular event and the total number of outcome
Amphibians Insects Fish Reptiles Birds Mammals
12 30 9 25 22 42
Relative frequency =
Total number of wildlife animals = 12+ 30 +9 +25+22+42 = 140
Now the relative frequency of mammals in the survey =
the relative frequency of mammals in the survey = = 0.3
Converting into percentage , we get
=
= 30 %