How you solve b-9+6b=30

Answers

Answer 1

Answer: b - 9 + 6b = 30

b+ 6b - 9 = 30

7b - 9 = 30

7b = 39

b = $(39)/(7)$

Nice days...........

Answer 2

Answer: associative property is moving a+b=b+a
add like terms
1b+6b-9=30
7b-9=30
add 9 to both sides
7b=39
divide both sides by 7
b=39/7
39/7=5 and 4/7

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If you grow 523 eggplants and sell 378, how many do you have left?

Answers

145, you subtract the total number with how many you sold
523-378=145

If you grow 523 eggplants and sell 378 of them then you will have 145 left.

523 - 378 = 145

Geometry 15 pts
answer is in fractions

Line segment JM has endpoints with coordinates 0 and 25 on a number line. Points K and L are on segment JM. K has a coordinate of 5 and point L has a coordinate of 12. Find the probability that a point on JM is placed first on JL and a second point is not placed on KL.

Answers

Answer:

On a Number Line, if only whole numbers are marked

Points J, M, K, and L are marked, having coordinates 0, 25, 5, and 12.

Two points are again marked on the number line.

Probability,that a point on J M is placed first on J L

= There are 10 natural numbers in between J L and 12 natural numbers between L M.

So, Required Probability

$=\frac{_(1)^(C)\textrm{10}*_(1)^(C)\textrm{12}}{_(1)^(C)\textrm{25}*_(1)^(C)\textrm{25}}\n\n=(10*12)/(25*25)\n\n=(120)/(625)\n\n=(24)/(125)$

Now, Probability that second point is not placed on KL, it means that point is either is on J K or L M.

There are 4 natural number between 0 and 5 and 12 natural number between L and M.

Probability of marking second point on J M is

$=\frac{_(1)^(C)\textrm{4}*_(1)^(C)\textrm{12}}{_(1)^(C)\textrm{25}*_(1)^(C)\textrm{25}}\n\n=(4*12)/(25*25)\n\n=(48)/(625)$

Probability of marking two points on the number line, with given condition is

$=(120)/(625)+(48)/(625)\n\n=(168)/(625)$

If you consider ,points on the number line which are real numbers, then we can't find the required Probability that is marking two points on the line segment.

216/225 is the answer

What is the greatest common factor of 36x3 and 8x?
A. 4x
B. 4x3
C. 8x
D. 8x3

Answers

The greatest common factor of two variables or numbers can be determined by listing all of the factors of the two numbers and then determining which is the greatest among all. In this case, the answer should be A. 4x since the least power of x is 1 and 36 and 8 has a GCF of 4.

36x^3 = 4*9*x*x^2
and
8x = 4*2*x

so the gcf. will be 4x so choice A. is right sure

hope helped

The state of Pennsylvania covers almost 29 million acres.of the total acreage,about 53% is forest land.about how many acres of forest land are in the state of Pennsylvania?

Answers

29×0.53=15.37 million acres

If addenda are 170 and 130 what is the sum

Answers

The answer is 200 of 170

Write an equation of the line below.

Answers

Answer:

y=1x+2

Step-by-step explanation:

the gradient is equal to 1 and the c in the question is 2 because the y-intercept represents c.

Gradient= (y2-y1)/(x2-x1)

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