i need help fast pls

Answer:

D. is the match of the equation

Answer:

24 + 6

this is the correct answer

Explaination:

the subtraction sign cancalles out the negative in front of the 6

Answer:

its c

Step-by-step explanation:

Answer:

Each question was worth 5 points.

Step-by-step explanation:

If every question had the same worth, then that would be easier to calculate.

First divide the points he lost by how many questions.

20 ÷ 4 = 5

Now we have it! Each question is worth 5 points!

But if you want to find how many questions in total the test had, we can do that too!

100 ÷ 5 = 24

The test had 24 questions!

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Answer:

6

Step-by-step explanation:

| | | + | | | = 6

Answer:

When solving inequalities you want to first group all like terms, so you'd first add 8 to both sides, and get rid of the extra number on the left side.

7x ≤ -7

Then you'd isolate the variable, so you should divide both sides by 7.

x ≤ -1

When graphing the equation the solution set includes -1 so you would put a closed circle (filled in). The variable "x" is less than and equal to -1 so you would put the arrow facing left  <----.

Step-by-step explanation:

Answer:

y = 3/4x - 15/4

Step-by-step explanation:

Answer:

C)8

Step-by-step explanation:

x=5 ,y=6

therefore , 2×12/6

= 8

Answer:

[tex]x = 15.[/tex]

Step-by-step explanation:

[tex]4x/5-x=X/10-9/2 = > \\ \frac{4x}{5 - x} = \frac{x}{10} - \frac{9}{2} \\ (20)4x = 2x(5x - x) - 10(5x - x) \\ 80x = 10 {x}^{2} - {2x}^{2} - 50x + 10x \\ 8 {x}^{2} - 120x = 0 \\ {x}^{2} = 15x \\ x = 15.[/tex]

Answer:

A

Step-by-step explanation:

Answer:

5x - 3

Step-by-step explanation:

3x + 2(x - 5) +7​

3x + 2x - 10 + 7

5x - 3

Answer:

28+8x

12x

Step-by-step explanation:

you would plug in numbers for x until one of them is cheaper in this case waste away is cheaper by $8 after 5 trash cans

Answer:

10

Step-by-step explanation:

If you add 8 + 1 according to the numbers, it will give you 9. Add another 1, which is the +2. gives 10. 8+2 is 10, seems ez i know ur trolling Imao

Answer

8+2=10

Example:

If you have 8 apples and your friend Joe gives you 2 more, you then have 10 apples.

Answer:

∠A = 148°

∠B = 32°

Step-by-step explanation:

We know that  ∠A and ∠B are supplementary angles, this means that:

∠A + ∠B = 180°

And we also know that:

∠A = (7x + 15)°

∠B =  (x + 13)°

Then we have a system of 3 equations.

To solve it, we can replace the second and third equations into the first one, and get:

(7x + 15)° + (x + 13)° = 180°

Now we can solve this for x, but first, let's remove the degree sign so it is easier to work:

7x + 15 + x + 13 = 180

(7 + 1)*x + 28 = 180

8*x = 180 - 28 = 152

x = 152/8 = 19

Now that we know x, we can find the values of ∠A and ∠B

∠A = (7x + 15)° = (7*19 + 15)° = 148°

∠B =  (x + 13)° = (19 + 13)° = 32°

Answer:

Step-by-step explanation:

Why is the speed of light travels 300,000 km per second in a vacuum, ... the same thing, but nobody is tackling the question of why light can't move faster. ... What happens if you travel faster than the speed of light? ... The theory of relativity has a lot to say about the relationship between space and time.

Answer:x= 2

Step-by-step explanation:

X+16/3= 3x

3(x+16/3)=3(3x) [in order to cancel out the divided by 3]

X+16=9x

16=8x

2=x

Answer:

dx/dt = 12

Step-by-step explanation:

Given the  equation of a circle expressed as:

x²+y² = 16

Differentiate the expression with respect to x

2x dx/dt + 2y dy/dt = 0

Given

x = 2

dy/dt = 3

Required

dx/dt

Substitute the given parameters into the resulting differential equation

2x dx/dt + 2y dy/dt = 0

2 dx/dt + 2(4) (-3) = 0

y = 4 since the radius is 3,

2 dx/dt - 24 = 0

2 dx/dt = 24

dx/dt = 24/2

dx/dt = 12

Using implicit differentiation, it is found that:

[tex]\frac{dx}{dt} = 4 + 3\sqrt{3}[/tex]

The equation of the circle is:

[tex]x^2 + y^2 = 16[/tex]

We are given x = 2, then:

[tex]2^2 + y^2 = 16[/tex]

[tex]y^2 = 12[/tex]

[tex]y = \pm \sqrt{12}[/tex]

First quadrant, thus, positive:

[tex]y = \sqrt{12}[/tex]

[tex]y = 2\sqrt{3}[/tex]

Applying implicit differentiation, we have that:

[tex]2x\frac{dx}{dt} + 2y\frac{dy}{dt} = 16[/tex]

We are given that [tex]frac{dy}{dt} = -3[/tex], then:

[tex]2(2)\frac{dx}{dt} - 12\sqrt{3} = 16[/tex]

[tex]4\frac{dx}{dt} = 16 + 12\sqrt{3}[/tex]

[tex]\frac{dx}{dt} = \frac{16 + 12\sqrt{3}}{4}[/tex]

[tex]\frac{dx}{dt} = 4 + 3\sqrt{3}[/tex]

A similar problem is given at https://brainly.com/question/9543179

Answer:

The slope of the line perpendicular to the line whose equation is 2x + 2y = 28 is -x.

Step-by-step explanation:

You first isolate y, then divide 2 on both sides. This gives you the equation y = x + 14. To find a slope perpendicular to the line, simply use the negative integer of x, which is -x. The slope of the line perpendicular to the line given is -x.

Answer:

180

Step-by-step explanation:

Answer:

B 180

Step-by-step explanation:

180÷2=90

180÷3=60

180÷4=45

180÷6=30

180÷10=18

Answer:

D

Step-by-step explanation:

Answer:

Nine

Step-by-step explanation:

please mark me brainlist

Answer: 20 months

Step-by-step explanation: 300/15

Answer:

This is The Answer! Solutions: x=2.

Answer:

linear. no repeating X values

Step-by-step explanation:

Answer: S: $450

              W: $780

so $450+$780 =$1230

the answer is $1230

Step-by-step explanation:

Answer:

B is 5 the answer your welcome

1. 4 : 3 = 2 : 1.5

2. 2 : 4 = 3 : 6

3. 3 : 2 = 4 : 2.6

Step-by-step explanation:

first convert fraction to percentage, then into a decimal.

The line in a fraction that separates the numerator and denominator can be rewritten using the division symbol. So, to convert a fraction to a decimal, divide the numerator by the denominator. If required, you can use a calculator to do this. This will give us our answer as a decimal.

Answer:

what is the question asking?

Step-by-step explanation:

Answer: