Since you need an isolated variable to use the substitution method, we need to re-arrange one of the equations. This will probably be easiest to do with the first one.
Add 5y to both sides of the first equation.
x=10+5y
Now, in the second equation, put in 10+5y in any spot that has an x.
2(10+5y)-10y=20
Distribute the 2 to both numbers in the parenthesis.
20+10y-10y=20
Combine like terms.
20=20
This means that the two equations are actually the same. You can see this if you multiply the whole first equation by 2
2(x-5y=10)
2x-10y=20, which is the same as the second equation. Therefore, the two equations are actually the same one.
Answer:
The depth now is 47 feet below the surface of the lake
Step-by-step explanation:
Step 1: Determine initial depth
Initial depth=surface level-depth below surface
where;
Surface level=0, since its the point of reference
depth below surface=96 feet
replacing;
Initial depth=(0-96)=-96 feet
Step 2: Final depth
Final depth=Initial depth+distance covered
where;
Initial depth=-96 feet
distance covered=+49 feet since the scuba driver moves towards the surface
replacing;
distance covered=-96+49=-47 feet
The depth now is 47 feet below the surface of the lake
Answer:
Are you asking just the next two integers are? If so, they're 135 and 136
20 I apologize if this is wrong
Answer:
Expanded Notation Form:
97,367 =
90,000
+ 7,000
+ 300
+ 60
+ 7
Expanded Factors Form:
97,367 =
9 × 10,000
+ 7 × 1,000
+ 3 × 100
+ 6 × 10
+ 7 × 1
Expanded Exponential Form:
97,367 =
9 × 104
+ 7 × 103
+ 3 × 102
+ 6 × 101
+ 7 × 100
