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Angelina_Jolie [31]

2 years ago

10

Three times the sum of b and f, can also be written as:

2 answers:

Rudik [331]2 years ago

6 0

3(b+f) you just do the sum and times it by 3

Roman55 [17]2 years ago

4 0

3(b+f) would be ur answer
its the sum of b and f multiplied by 3

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Can somebody help with this problem?

Anastasy [175]

Answer:

x=-5 or -5

Step-by-step explanation:

x - 4 = 2x + 1

Subtract x from both sides canceling out the x on the left, getting...

-4 = x + 1

Then subtract the 1 from both sides canceling out the 1 on the right, getting...

-5 = x

Subtracting x from 2x gets you 1x which you just write as x because there is only one x. Doing the equation from the other side will still get you the same answer and I will show you.

x - 4 = 2x + 1

-x - 4 = 1

-x = 5

x = -5

Hope this helps!

4 0

2 years ago

A triangle with side lengths of 5, 5, and 8 is:

Volgvan

Your answer is c, an obtuse triangle because if the two side lengths are the same length along with a longer side, it become obtuse
let me know if you have any other questions
:)

6 0

2 years ago

Solve the following system of equations by graphing and select the correct answer below:

JulijaS [17]

Answer: option c

Step-by-step explanation:

Find the x-intercept and y-intercept of each line.

To find the x-intercept, substitute $y=0$ into the equation and solve for "x".

To find the y-intercept, substitute $x=0$ into the equation and solve for "y".

- For the first equation:

x-intercept

$4x + 3y = 29\\\\4x + 3(0)= 29\\\\4x=29\\\\x=\frac{29}{4}\\\\x=7.25$

y-intercept

$4x + 3y = 29\\\\4(0) + 3y = 29\\\\3y=29\\\\y=\frac{29}{3}\\\\y=9.66$

Graph a line that passes through the points (7.25, 0) and (0, 9.66)

- For the second equation:

x-intercept

$2x - 3y = 1 \\\\2x - 3(0) = 1 \\\\2x=1\\\\x=0.5$

y-intercept

$2x - 3y = 1\\\\2(0) - 3y = 1\\\\-3y=1\\\\y=-0.33$

Graph a line that passes through the points (0.5, 0) and (0, -0.33)

Observe the graph attached. You can see that point of intersection of the lines is (5,3); then this is the solution of the system. Therefore:

$x=5\\y=3$

7 0

3 years ago

Read 2 more answers

Use the rule for order of operations to simplify the expression as much as possible.

ratelena [41]

Answer:

The answer to your question is 3

Step-by-step explanation:

Expression

3⁴ + 9² / 3³ - 9²

1.- Do the division

3⁴ + (9² / 3³) - 9²

Use law of exponents

3⁴ + (3⁴ / 3³) - 9²

3⁴ + 3⁴⁻³ - 9²

Simplify

3⁴ + 3 - 9²

2.- Convert 9² to base 3

3⁴ + 3 - 3⁴

3.- Simplify (associative property)

( 3⁴ - 3⁴ ) + 3

4.- Result

3

7 0

2 years ago

What is the value of x

goblinko [34]

Answer:

52/3

Step-by-step explanation:

Use basic Thales therom,

$\frac{3x}{4x}=\frac{3x+7}{5x-8}\\\\\frac{3}{4}=\frac{3x+7}{5x-8}\\$

Cross multiply,

3*(5x-8)=4*(3x+7)

3*5x - 3*8 = 4*3x + 4*7

15x - 24 = 12x +28

Add 24 to both sides

15x = 12x + 28 + 24

15x = 12x + 52

Subtract 12x from both sides

15x-12x =52

3x = 52

Divide both sides by 3

x = 52/3

8 0

2 years ago