This is the definition of a rational number.
Answer:
x=-1, y=8
Step-by-step explanation:
The given system is
-x+y =7
6x+y=14
We make y the subject in the first equation to get:
y=x+7
We put y=x+7 into 6x+y=14 to obtain
6x+x=14-7
7x=7
x=1
We now put x=1 into y=x+7
The solution is x=1, y=8
Part B
We now verify
-1+8=7 ....True
6(1)+8=14....True
Answer:
7 hours
Explanation:
This week Melisa studied for 28 hours. Last week she studied 1/4'th of it.
So to find last week study hours. Divide this weeks study hours by 4.
Last week study hours:
- this week study hours ÷ 4
Answer:
RO
Step-by-step explanation:
Answer:
Step-by-step explanation:
1)
A. 2 meters to centimeters
1 m = 100 cm
B)108 centimeters to meters
100 cm =1 m
C)2.49 meters to centimeters
1 m = 100 cm
D)50 centimeters to meters
100 cm = 1m
E)6.3 meters to centimeters
1 m = 100 cm
F)7 centimeters to meters
100 cm = 1 m
2)
a)4 meters to millimeters
1 m = 1000 mm
b)1.7 meters to millimeters
1 m = 1000 mm