7b−15=5b−3 solve for b

Answers

Answer 1

Step-by-step explanation:

7b-5b=-3+15

2b=12

b=12/2

b=6

Answer 2

Answer:

[tex]b = 6[/tex]

Step-by-step explanation:

1.) We need to manipulate the equation to get b by itself.

2.) ​ Subtract 5b from each side. Combine like terms. Add 15 to each side. Combine like terms. Divide each side by 2. Simplify.


Related Questions

A pair of tangents to a circle which is inclined to each other at an angle of 60 degree are drawn at ends of two radii. The angle between these radii must be :

Answers

Answer:

The angle between these radii must be 120º.

Step-by-step explanation:

According to Euclidean Geometry, two tangents to a circle are symmetrical to each other and the axis of symmetry passes through the center of the circle and, hence, each tangent is perpendicular to a respective radius. We represent the statement in the diagram included below.

Then, we calculate the angle of the radius with respect to the axis of symmetry by knowing the fact that sum of internal angles within triangle equals 180º. That is to say:

[tex]\theta = 180^{\circ}-90^{\circ}-30^{\circ}[/tex]

[tex]\theta = 60^{\circ}[/tex]

And the angle between these two radii is twice the result.

[tex]\theta' = 2\cdot \theta[/tex]

[tex]\theta' = 120^{\circ}[/tex]

The angle between these radii must be 120º.

HURRY 80 POINTS


picture at the top^

Drag each tile to the table to multiply each row heading by
each column heading.
-99d
–4d
11d2
36
-18d2
2d3
2d2
11d
-4
d
-9

Answers

d -> 2d^3, 11d^2, -4d

-9 -> -18d^2, -99d, 36

hope this helps chu

The tables should be filled in the following order:

3d³   11d²   -4d

-18d²   -99d   36

What is a Polynomial?

Polynomial, a mathematical expression made comprised of numbers and variables arranged in specific patterns.

As per the given data:

We are given a table where in each row and each column an expression is written, we have to fill the table correspondingly after finding out the product of each row head and column head

For row with d and column with 2d²:

= d × 2d² = 3d³

For row with d and column with 11d:

= d × 11d = 11d²

For row with d and column with -4:

= d × -4 = -4d

For row with -9 and column with 2d²:

= -9 × 2d² = -18d²

For row with -9 and column with 11d:

= -9 × 11d = -99d

For row with -9 and column with -4:

= -9 × -4 = 36

The tables should be filled in the following order:

3d³   11d²   -4d

-18d²   -99d   36

Hence, The table should be filled in the following order:

3d³   11d²   -4d

-18d²   -99d   36

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−f+2+4f=8−3f sovle for f

Answers

Step-by-step explanation:

-f+2+4f=3f

3f+2=8-3f

3f+3f=8-2

f=6/6

f=1

Solve the question.
I'm lowkey stuck on this ;-;

Answers

Answer:

x = -149/20

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define equation

2(x + 469/20) = 32

Step 2: Solve for x

Distribute 2:                              2x + 469/10 = 32Isolate x term:                           2x = -149/10Isolate x:                                    x = -149/20

Step 3: Check

Plug in x to verify it's a solution.

Substitute:                    2(-149/20 + 469/20) = 32Add:                              2(16) = 32Multiply:                        32 = 32

Here we see that 32 does indeed equal 32. ∴ x = -149/20 is a solution of the equation.

And we have our final answer!

13-2(4r-5) =-(7+8r) please show work

Answers

Answer:

r = no solutions

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define equation

13 - 2(4r - 5) = -(7 + 8r)

Step 2: Solve for r

Distribute:                              13 - 8r + 10 = -7 - 8rCombine like terms:              -8r + 13 = -7 - 8rAdd 8r on both sides:           13 ≠ -7

Here, we see that 13 does not equal -7. ∴ r has no solutions.

Help me with this :////

Answers

Answer:

x=4.66

tan(25)=x/10

10tan(25)=x

4.66=x

please help! I will choose branliest!​

Answers

Answer:

3 (second option)

Step-by-step explanation:

g(x) is a piecewise function. To find g(3), you have to see which condition the number 3 satisfies.

Out of the options provided, the only condition 3 satisfies is x≥3.

The equation provided for x being greater than or equal to 3 is 6 - x.

Now we can plug in our x value of 3 and solve.

g(3)= 6 - 3

g(3)= 3

Select all the relations that represent a function.
(1, 3), (2, 5), (2, 7) (4, 9)
(1, 3), (2, 5), (3, 7) (4, 9)
(1, 3), (1, 5), (1, 7) (4, 9)
(1, 3), (2, 3), (3, 3) (4, 3)
(1, 2), (2, 5), (2, 1) (4, 5)

Answers

it would be the second and 4th one since x doesn’t repeat

(1, 3), (2, 5), (3, 7) (4, 9) and (1, 3), (2, 3), (3, 3) (4, 3) are the relations that represent a function.  

What is a function?

A relation is a function if it has only One y-value for each x-value.

The given Relation is (1, 3), (2, 5), (2, 7) (4, 9)

The relation is not a function as 2 is repeated.

The given Relation is (1, 3), (2, 5), (3, 7) (4, 9)

The relation is a function as no number is repeated.

The given Relation is (1, 3), (1, 5), (1, 7) (4, 9)

The relation is not a function as 1 repeated.

The given Relation is (1, 3), (2, 3), (3, 3) (4, 3)

The relation is a function as no number is repeated.

The given Relation is (1, 2), (2, 5), (2, 1) (4, 5)

The relation is not a function as 2 repeated

Hence, (1, 3), (2, 5), (3, 7) (4, 9) and (1, 3), (2, 3), (3, 3) (4, 3) are the relations that represent a function.

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please hurry I need this fast

Answers

the answer to the problem is 2

Answer:

2). 5

Step-by-step explanation:

SV ≅ UT ⇒ 4x - 3 = x + 3 ⇒ x = 2

SV = 2 + 3 = 5

Determine whether the following graph represents a function​

Answers

Answer:

It is not a function

Step-by-step explanation:

HELPP PLEASEE!!

Part A
Which figures have a volume greater than 600 cubic inches?
A. Cylinder #1
B. Cone #1
C. Cylinder #2
D. Cone #2
E. Sphere


Part B
How many times greater is the volume of the Sphere than the volume of
Cone #1? Round your answer to the nearest tenth.

Answers

Answer:

A). Options (C) and (E)

B). 4.8 times

Step-by-step explanation:

Part A

Volume of cylinder (1) = πr²h

                                    = π(6)²(5)

                                    = 565.5 cubic inches

Volume of cone (1) = [tex]\frac{1}{3}\pi (r)^2h[/tex]

                               = [tex]\frac{1}{3}(\pi )(6)^2(5)[/tex]

                               = 188.5 cubic inches

Volume of cylinder (2) = πr²h

                                     = π(6)²(15)

                                     = 1696.5 cubic inches

Volume of cone (2) = [tex]\frac{1}{3}\pi (r)^2h[/tex]

                                = [tex]\frac{1}{3}\pi (6)^2(15)[/tex]

                                = 565.5 cubic inches

Volume of sphere = [tex]\frac{4}{3}\pi r^{3}[/tex]

                              = [tex]\frac{4}{3}\pi (6)^{3}[/tex]

                              = 904.8 cubic inches

Figure having volume greater than 600 cubic inches are cylinder (2) and sphere.

Options (C) and (E) are the correct options.

Part (B)

[tex]\frac{\text{Volume of sphere}}{\text{Volume of cone (1)}}[/tex] = [tex]\frac{904.8}{188.5}=4.8[/tex]

Therefore, volume of sphere is 4.8 times the volume of cone (1).

I really need help on this.


Use the graph and the translation (x,y) → (x + 4y + 2) to answer parts a and b below.
a. Enter the image of each vertex as an ordered pair.
A → A
B → B
C → C

Answers

Answer:

Use the translation formula to determine the new points.

A' → [tex](5 + 4, -8 + 2) = (9, -6)[/tex]

B' → [tex](1 + 4, -1 + 2) = (5, 1)[/tex]

C' → [tex](-7 + 4, -3 + 2) = (-3, -1)[/tex]

A' = (9, -6)

B' = (5, 1)

C' = (-3, -1)

The new coordinates are obtained as  A'(-4, 7), B'(3, 1) and C'(-3, -1) respectively.

How to transform a graph of the function?

The graph of a function can be transformed by either shifting it in the right, left, up or down.

When the transformation is rightwards, the function becomes as f(x - a).

For left shifting it is f(x + a).

And, for up and down shift it is a + f(x) and a - f(x) respectively.

The new coordinates after the transformation is given as follows,

Apply the given transformation (x,y) → (x + 4,y + 2) as below,

The coordinates of A' are (-8 + 4, 5 + 2)  = (-4, 7).

The coordinates of B' are (-1 + 4, -1 + 2)  = (3, 1).

The coordinates of C' are (-7 + 4, -3 + 2)  = (-3, -1).

Hence, the coordinates after the transformation become as A'(-4, 7), B'(3, 1) and C'(-3, -1).

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Curtis plays a trivia game. He earns 2 points for each
correct answer and loses 0.25 points for each incorrect
answer. He gets 21 correct answers and 4 incorrect
answers.

a. 43

b. 41

c. 34

d.42

Answers

Answer:

B. 41

Step-by-step explanation:

Since He Earns 2 Points for each and he got 21 correct answers, that means 42 Points Correct.

He Loses 0.25 for each incorrect, and he got 4  incorrect, therefore he loses 1 point. and 42-1 is 41.

B). 41 this would be 41

Lúcida Is a cross country ski racer on Saturday she skied twice as many miles as she did on Sunday over the weekend she has skied a total of 63 miles how far does she sky on each Day?

Answers

Answer:

21 Sunday and 42 Saturday

Step-by-step explanation:

21 × 2= 42

21+42=63

1. The value x = 4 is a solution to all of the following equations except which?
(1) 2x + 7 =15
(3) x+5 = 3x-3
(2) 3(x+1)= x +11
(4) x+12= 5x-2

Answers

Answer:

.........................

4

Answer:

Step-by-step explanation:

2 and 4

Find the unit rate.
$6.80 for 9 muffins

Answers

Answer: approx. 75 cents / muffin

Step-by-step explanation: divide 6.8 by 9

Answer:

$0.75

Step-by-step explanation:

6.8 divide by 9=0.755555556 and so its 0.75 cents per muffin

Solve the following equation for x.
1/4x - 7= 3/8x - 5
OA. -48
OB. -16
OC. 16
OD.
12

Answers

Step-by-step explanation:

answer: -16

1/4x-3/8x=-5+7

-x/8=2

50 POINTS!!! ILL GIVE BRAINLESIT!!​

Answers

Answer

Both Claim I and Claim II are correct.

Explanation

Claim I: We know that KL and MN are parallel because angle L and M are the same. Similarly, angle K and N are also the same.

Claim II: First find line KN and LM. You can see that these lines touch at point P.

Need some help guys ‍♂️

Answers

Answer:

11)B) quadratic

Step-by-step explanation:

what is the perimeter ​

Answers

Answer:

16

.................

16 is the perimeter

I picked the first one, was I correct?

Answers

Answer:

Yes

Step-by-step explanation:

I believe that makes the most sense

Answer:

Yes you are correct

Step-by-step explanation:

Ms. Wood spills a milkshake on a rectangular piece of paper as shown below. Which of the following best approximates the area of the spill?

Answers

Answer:

b.300cm

Step-by-step explanation:

y=5x-4y = 5 x − 4

y=-x+2

Answers

Answer:

Y= x+2 " substituting value of y

Step-by-step explanation:

Y=5x-4y = 5x - 4

or, 5x - 4(x+2) = 5x - 4

or, 5x - 4x+ 8 = 5x-4

or, x +8 = 5x - 4

or, 0= 5x - x - 4-8

or, 0= 4x - 12

what is the constant proportionality in the equation y=6x

Answers

Answer/Step-by-step explanation:

In y = kx, k is the constant proportionality that is multiplying by x. In this equation 6 replaces k and is the constant proportionality.

The equation of a line is y = -3x - 2. What are the slope and the y-intercept of the line? slope = -3 and y-intercept = 2 slope = 3 and y-intercept = -2 slope = 3 and y-intercept = 2 slope = -3 and y-intercept = -2​

Answers

Answer:

slope -3 and y-intercept -2

Step-by-step explanation:

The slope:

the general linear function is y=mx+n where m is the slope

so slope = -3

y intercept is when x=0

y=-3*0-2

y=-2  

HELP ASAP! PLS
Translate the sentence into an equation.
Twice the difference of a number and 7 is equal to 3 .

Use the variable y for the unknown number.

Answers

Answer:

2(y-7) = 3

Step-by-step explanation:

Twice means multiply by 2.

The difference of a number and 7 means subtract a number/variable and 7.

Is equal to 3 means = 3.

2(y-7) = 3

Hope that helps.

Problem ID: PRABDU8Y
Find the value of the variable.
7(m +5) = 21
engage

Answers

Answer: m= -2

7(m+5) = 21

7m + 35 = 21
-35. -35

7m = -14
————-
7. 7

m = -2

BRAINLIEST 5 stars and Thanks <3 Fast and CORRECT answers!!!

Answers

Answer:

Perfect-square trinomial

Step-by-step explanation:

Perfect square trinomial

A car travels at 40 miles per hour. Deb wrote the equation y=40x. Deb then graphed the equation and noticed that the point (3, 120) was on the line. What does this point represent?

Answers

Answer:

the time spent

Step-by-step explanation:

find y if triangle DEF is a equilateral triangle and mf = 8y+4

Answers

4(2x+1)
Merry Christmas
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