Answer:
251 b + 21 or b = (-21)/251
Step-by-step explanation:
Simplify the following:
6 b - 7 (-35 b - 3)
-7 (-35 b - 3) = 245 b + 21:
245 b + 21 + 6 b
Grouping like terms, 245 b + 6 b + 21 = (6 b + 245 b) + 21:
(6 b + 245 b) + 21
6 b + 245 b = 251 b:
Answer: 251 b + 21
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Or if you need the Roots.
Solve for b:
251 b + 21 = 0
Subtract 21 from both sides:
251 b + (21 - 21) = -21
21 - 21 = 0:
251 b = -21
Divide both sides by 251:
Answer: b = (-21)/251
115.2 pounds of type A coffee were used.
<h3>What is the solution of the equation?</h3>
A mathematical statement that has an "equal to" symbol between two expressions with equal values is called an equation.
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides. We have LHS = RHS (left hand side = right hand side) in every mathematical equation. To determine the value of an unknown variable that represents an unknown quantity, equations can be solved.
Let the number of pounds of type A coffee be x and the number of pounds of Type B coffee be y.
According to the question, the equations are,
5.50x + 4.40y = 762.30
x = 4y
So, the solution of the equation is obtained as follows:
5.50(4y) + 4.40y = 762.30
26.40y = 762.30
y = 762.30/26.40
y = 28.8 pounds
x = 4*28.8 = 115.2 pounds
Learn more about equations here:
brainly.com/question/2972832
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Answer:
Using the eliminiation method or the substitution method.
The answer is:
Y=3x
Explanation:
Every time that the x value moves to the right 1, the y increases by 3
Part a.
<span>The perimeter formula is: </span>
P = 2w + 2LYour answer for part A is
P = 2w + 2LPart b.
They tell us in part b, that:
w = 6L + 20
Substitute that into what we got for part a.
P = 2(6L + 20) + 2L
P = 12L + 40 + 2L
P = 14L + 40Your answer for partb is
P = 14L + 40Part c.
So we take what we got from part b, and solve for L.
P = 14L + 40
14L = P - 40

That is your answer for part 3 ^
part d.
Plug in w = 32 into what we first got in part b.
w = 6L + 20
32 = 6L + 20
6L = 12
L = 2Your answer for part d is
L = 2<span>:D</span>