Answer: its A, B, and D
Step-by-step explanation:
X+y=8
y=3x
You would want to substitute the y for the 3x
x+3x=8
You can now add the x with the 3x to get 4x
4x=8
Now divide the 4 on both side to solve for x
x=2
Now to solve for y just substitute the x for the 2
y=3(2)
Now multiply the 3 and the 2 to solve for y.
y=6
So your corrct answer is B:(2,6)
Answer:
5x^4 -37x^3 -6x^2 +41x -6
Step-by-step explanation:
We simplify this expression by removing parentheses and combining like terms. Parentheses are removed using the distributive property.
<h3>Form the product</h3>
The product of the final pair of polynomials in parentheses is ...
(-4x^3 +5x -1)(2x -7) = (-4x^3 +5x -1)(2x) +(-4x^3 +5x -1)(-7)
= -8x^4 +10x^2 -2x +28x^3 -35x +7
= -8x^4 +28x^3 +10x^2 -37x +7
<h3>Combine with remaining sums</h3>
= (5x^4 -9x^3 +7x -1) + (-8x^4 +4x^2 -3x +2) - (-8x^4 +28x^3 +10x^2 -37x +7)
= (5 -8 -(-8))x^4 +(-9 -28)x^3 +(4 -10)x^2 +(7 -3 -(-37))x +(-1 +2 -7)
= 5x^4 -37x^3 -6x^2 +41x -6
Answer:
15 seeds
Step-by-step explanation:
Set up a ratio that represents the problem:
Sown Seeds : Seeds That Grow
100 : 75
Find the unit rate:
The unit rate is when one of the numbers in a ratio is 1. For this problem, let's make the number of sown seeds equal to one.
To do this, divide by 100 on both sides of the ratio.
100 : 75
/100 /100
1 : .75
This means that if Tim sows 1 seed, .75 will grow.
Answer the question:
We need to find the number of seeds that would grow if Tim planted 20 seeds. Therefore, multiply by 20 on both sides of the ratio.
1 : .75
x20 x20
20 : 15
Therefore, if Tim plants 20 seeds, we would expect 15 to grow.
Answer:
y=6x+11
Step-by-step explanation:
y-5=6(x+1)
y-5=6x+6
y=6x+11
