Hamburger: $3.25
Medium Fries: $1.45
Medium Drink: $1.39
Answer:The number of text messages sent by his sister=162
Step-by-step explanation:
Step 1
The ratio of number of text messages sent by Lucas to the number of text messages sent by his sister =4 to 9= 4:9
Number of text messages sent by Lucas =72
Total ratio is given as 4+ 9= 13
Step 2
such that the total number of messages sent by Lucas and by his sister will be calculated as
Ratio of text messages sent by Lucas/ total ratio x Total messages = Number of text messages sent by Lucas . Let X = Total number of messages
4/13 x X = 72
X=72 x 13 / 4 =234
Therefore, The number of text messages sent by his sister= ratio of text messages sent by his sister/ Total ratio x Total number of messages =
9/13 X 234= 162 messages
Answer:
15
Step-by-step explanation:
In the function f(x), x is the variable. So, whatever is in the parentheses, replacing x, should replace x throughout the entire function. So, to find f(4) simply plug in 4 for x.
- First, rewrite the function with 4 as x
f(4) = 4^2 - 4 + 3
f(4) = 4^2 - 1
- Then, raise 4 to the power of 2
f(4) = 16 - 1
f(4) = 15
Answer:
(3) 11
Step-by-step explanation:
A line perpendicular to one with a slope of -2 will have the opposite reciprocal slope: -1/(-2) = 1/2.
The point-slope equation of the line through (3, 9) with slope 1/2 is ...
y -9 = 1/2(x -3)
Then for point (7, k) on the line we have ...
k -9 = 1/2(7 -3)
k = 9 +2 = 11
The value of k is 11.