There are two ways to solve system of equations.
1) substitution method
2) elimination method
4x - y = -6
x - 2y = -5
For thus problem, i'll be using the substitute method.
So, using the equation x - 2y = -5:
Solve for "x" by adding 2y to both sides of the equation.
x = 2y - 5
Now we know what "x" is, we can substitute it in the other equation.
4x - y = -6
4(2y - 5) - y = -6
8y - 20 - y = -6
7y - 20 = -6
7y = 14
y = 2
We now know the numerical value of y. So, all we have to do is plug in y into either system of equation to solve for the numerical value of x.
4x - 2 = -6 x - 2y = -5
4x = -4 x - 2(2) = -5
x = -1 x - 4 = -5
x = -1
The solution is (-1, 2) where x equals -1 and y equals 2.
Answer:
The corn plant grew by 11.17 inches during week 2.
Step-by-step explanation:
7 and 1/3 inches tall at the end of Week 1.
The height at the end of week 1, as a simple fraction, is:
The corn plant was 18 1/2 inches tall at the end of Week 2.
At the end of week 2, the height will be of:
How many inches did the corn plant grow during Week 2?
Height at the end of week 2 subtracted by the height at the end of week 1. So
The corn plant grew by 11.17 inches during week 2.
Answer:
120
Step-by-step explanation:
AAA theorem and SSS postulate are often called as similarity theorem and based on your question about which statement is true about the two similarities is letter C. AAA theorem describes congruence of all three angle in corresponding triangles. SS postulate describe congruence of all three sides in corresponding triangles
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5(n-2) = 2+5n + 2n fits your equation. After multiplication, we have
5x - 10 = 2 + 7n
Combining like terms, we get:
-12 = 2n, so that n = -6.
