Brandon uses the steps below to solve the equation 15x+6=14x+5 using algebra tiles. Step 1 Add 14 negative x-tiles to both sides. Step 2 Add 5 negative unit tiles to both sides Step 3 The solution is x=1 Which explains whether Brandon is correct?
Answers
Answer:
No he was not correct
Step-by-step explanation:
The Equation is 15 x + 6 = 14 x + 5
now By the steps brandon used let us solve the question
Step 1 : Add 14 negative x tile to both sides
which will make the equation
15x + 6 - 14x = 14x + 5 - 14 x
x + 6 = 5 .......(ii)
Step 2: Add 5 negative unit tiles to both sides of equation (ii)
which will make the equation
x +6 - 5 = 5 - 5
x + 1 = 0 .........(iii)
Step 3: x =1 is the answer
but from equation (iii) we see that
x + 1 =0
by adding -1 on both sides
x + 1 -1 = 0-1
x = -1
So the step three done by Brandon is wrong which explains he was not correct
Answer:
D.) Brandon is not correct because he should have added 6 negative unit tiles to isolate the variable in step 2.
Step-by-step explanation:
YOUR WELCOME!! I took the test on Edge!! :)
Related Questions
A hot air balloon ascended to a height of 35 meters 2 minutes after launch. After some time, the balloon's attitude began to change by −3 1/4meters every minute for 9 minutes. To avoid a tree, the hot air balloon flew up by 5 1/2 meters. What is the new altitude of the hot air balloon? _________ meters
How to delete brainly accout
Solve the compound inequality, showing your work. Name the solution set and then draw the graph of the solution set.y-2<-5 or y-2>5
Which ordered pairs are solutions to the equation? y = 2x + 5 A. (5, 10) and (2, 9) B. (5, 15) and (9, 2) C. (15, 5) and (2, 9) D. (5, 15) and (2, 9)
Answers
Answer:
0.8594
Step-by-step explanation:
Let a denote the event of forgetting to shut off machine and b be the event of being defective.
-A foreman forgets to shut off machine 55% of the time.
-If he forgets, 15% of molds are defective.
-If he does not, 3% of molds are defective.
#The probability that he forgot to shut off the machine is calculated as:
P(a and ~b)=0.55(1-0.15)=0.4675
P(~a and b) = (1-0.55)*0.03=0.0135
P(~a and ~b) = (1-0.55)*(1-0.03)=0.4365
#Conditional probability is defined as:
Hence, the probability that the foreman forgot to shut off the machine the previous night is 0.8594
Answers
This is the distance that the balloon needs to fall to reach an altitude of 2000 feet.
2. 2800/40=70
Distance/rate=time
The answer is 70 minutes.
Answers
first
outer
inner
last
example if you had
(a+b)(c+d)
first a times c
outer a times d
inner b times c
last b times d
(2x-7)(x+3)
first 2x times x=2x^2
outer 2x times 3=6x
inner -7 times x=-7x
last -3 times 3=-21
add them
2x^2+6x-7x-21
2x^2-x-21
Answers
3y = 2x - 9
For the system to have infinite number of solutions, the equations of the lines must be equivalent i.e., the equations will result to the same equation if the coefficient of one variable in an equation is made equal to the coefficient of the same variable to the other equation. So,
The possible answers are
y = 2/3 x - 3
3/2 y = x - 9/2
Or any multiples or rearrangements of either equations.
Answer:
y=2/3x-3
Step-by-step explanation:
Answers
Answer:
d c a
Step-by-step explanation:
Answers
m=slope
b=y intercept
so exg
if you have
3x+8y=8
subtract 3x from both sides
8y=3x+8
divide boh tsides by 8
y=8/3x+1
y intercpt=1
slope=8/3