Answer:
m+n=54 and m=3n+8 is the system of equations that could be used to determine the price of each book.
Step-by-step explanation:
Given,
Total cost of maths book and novel = $54
Let,
Cost of maths book = m
Cost of novel = n
According to given statement;
m+n=54 Eqn 1
the price of the math textbook, m, is $8 more than 3 times the price of the novel
m = 3n+8 Eqn 2
m+n=54 and m=3n+8 is the system of equations that could be used to determine the price of each book.
Step-by-step explanation:
Answer:
y = -x - 1
Step-by-step explanation:
hello,
this is a line, right?
So the equation should be something like
y = ax+b and we need to find a and b
we can see that the points (-1,0) and (0,-1) are in the line so we can write
0 = a*(-1) + b <=> b - a = 0 <=> a = b
-1 = a*0 + b <=> b = -1
so the equation is
y = -x - 1
hope this helps
Answer:
Paula will arrive at her house at 15:20.
Step-by-step explanation:
Since Paula sets off from home at 13:20 and drives to Taunton for km at a speed of km / h, and after 40 minutes, she drives back home on the same route, but drives twice as slowly, to determine at what time Paula will arrive back home, the following calculation must be performed:
13:20 + 00:40 + (00:40 x 2) = X
14:00 + 1:20 = X
15:20 = X
So, Paula will arrive at her house at 15:20.
Answer:
No
Step-by-step explanation:
An equation doesn't consists of an equal sign, and expression what contains it
