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True [87]
2 years ago
7

Help help help help

Mathematics
1 answer:
deff fn [24]2 years ago
4 0

Answer:

b = 12

Step-by-step explanation:

b/3 + 4 = 8

subtract 4 on both sides

b/3 = 4

multiply 3 with 4

b = 12

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How to solve this step by step
Paha777 [63]
Yo has to factor since we assume that
if you have xy=0, x and y=0

7n^2-48n+36=0
trial and error
(7n-6)(n-6)=0

set each to zero
7n-6=0
add 6
7n=6
divide  7
n=6/7

n-6=0
add 6
n=6


n=6/7 or 6
8 0
3 years ago
What is 1/2k-3=2-3/4K
laiz [17]

Answer:

1/2k-3=2-3/4k

1/2k+3/4k=2+3

1.25k=5

1.25k/1.25=5/1.25

k=4

4 0
2 years ago
50 pounds to 35 pounds percentage of change
iVinArrow [24]

Answer:

30%

Step-by-step explanation:

<h2><u>Percentage change </u></h2><h3>formula :</h3>

\frac{change}{origional} * 100

= 50 - 35 = 15

= \frac{15}{50}*100\\

<h3>= 30 %</h3>
4 0
3 years ago
Using the slope and the y intercept, graph the line represented by the following equation.
PtichkaEL [24]
Beforehand let me apologize for my sloppy handwriting. I'm a lefty, so please deal with me. . Anyway, the equation you listed didn't really have a x, because a linear equation is y= mx+b, and anything with x is the slope. But I did see y and a number on one side, so I'm like maybe I can get these two alone. So here's what I did:

2y + 4=0
-4 -4 I subtracted 4 on both sides. Why because you would want "y" alone.
Next,
2y= -4
Now to get "y" alone you want to divide on both sides.
2y= -4/ 2
y= -2
Now you're probably thinking "how do you graph it? There's no "x" in the equation." Well, you just graph it. Since the answer is y= -2, you go to the y axis, look for -2, and place a line to indicate that is the equation. And to make it clear, remember y is the y-intercept.

I really do hope this helps you, if not message me. I'll be happy to help, and again I'm sorry for my handwriting!



4 0
3 years ago
Read 2 more answers
Simplify (1-6)(-4-7)​
lakkis [162]

Answer:

I’m guessing you subtract the numbers from the inside of the parenthesis and then multiply the two.

(-5)(-11) = 55

I hope this is correct.

7 0
2 years ago
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