Please help asap. Ty

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:

D

Step-by-step explanation:

Answer:

Nine

Step-by-step explanation:

please mark me brainlist

Answer:

24 + 6

this is the correct answer

Explaination:

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

Answer:

This is The Answer! Solutions: x=2.

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:

what is the question asking?

Step-by-step explanation:

Answer:

3 hours

Step-by-step explanation:

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: 20 months

Step-by-step explanation: 300/15

Answer: 88

Step-by-step explanation:

First use the distributive property.

4(15 + 7) can turn into 4(15) + 4(7)

Then we simplify until we get the answer.

4(15) = 60

4(7) = 28

Then it is...

60 + 28

Just add them together...

60 + 28 = 88

So the answer is 88. I hope this helps, and I hope it's not wrong, but I do not think it is.

Answer:

From a search on google, the first part of this problem is:

Kelsey has to pay $200 to rent a booth at the craft fair. The materials for each  pendant cost $7.80, and she plans to sell each pendant for $13.50. To make  a profit, she must make more money than she spends. Kelsey has already  made 10 pendants.

We know that:

I takes Kelsey 5 hours to make 12 pendants.

She works 8 hours per day, for 3 days.

then she works a total of 24 hours.

We want to find the number of pendants that she can make in that time, first, how many groups of 5 hours there are in 24 hours?

(24h/5h)

And in each one of those groups, she can make 12 pendants, this means that the total number of pendants that she will make is:

(24h/5h)*12 = 57.6 pendants.

And we should round it down to 57 pendants because 0.6 of a pendant does not make sense.

Now let's calculate the profit.

Remember that the profit is the difference between the revenue and the costs.

The costs will be:

C(x) = $200 + $7.80*x

Where x is the number of pendants that she made.

In these 3 days, she made 57 pendants, plus 10 that she did before, she has 67 pendants, then x = 67.

C(67) = $200 + $7.80*67 = $722.60

And the revenue will be:

R(x) = $13.50*x

for the 67 pendants:

R(67) = $13.50*67 = $904.50

Then the profit will be:

P = R - C = $904.50 - $722.60 = $181.90

So yes, her profit will be a lot more than the minimal of $50 asked in the question.

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: S: $450

              W: $780

so $450+$780 =$1230

the answer is $1230

Step-by-step explanation:

Answer: slope = 1 --1 / 2 --1

slope = 2 / 3

Answer:

2/3

Step-by-step explanation:

change in y/change in x

-1-1=-2

-1-2=-3

slope is 2/3

Answer:

C)8

Step-by-step explanation:

x=5 ,y=6

therefore , 2×12/6

= 8

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:

6

Step-by-step explanation:

| | | + | | | = 6

Answer:

linear. no repeating X values

Step-by-step explanation:

Answer:

y = 3/4x - 15/4

Step-by-step explanation:

Answer: 3/2

Did this on I ready

The speed of Becca for the given data is 3/2 miles per hour.

The distance that an object travels in relation to the amount of time it takes to do so can be used to define speed. In other terms, it is a measurement of an object's motion's speed without direction The term "velocity" refers to the combination of direction and speed.

Given the hiking distance of Becca = 9/10 miles

time taken = 3/5 hours

to find the speed,

speed = distance/time

speed = (9/10) ÷ (3/5)

speed = 9/10 x 5/3

speed = 3/2 miles per hour

Hence the speed of Becca is 3/2 miles per hour.

Learn more about speed;

https://brainly.com/question/28224010

#SPJ2

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:

5x - 3

Step-by-step explanation:

3x + 2(x - 5) +7​

3x + 2x - 10 + 7

5x - 3

Answer:

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:

D. is the match of the equation

Answer: A. A number squared plus twenty-two.

Step-by-step explanation: I am pretty sure this is right like 99.99999999999% sure.

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.

1. 4 : 3 = 2 : 1.5

2. 2 : 4 = 3 : 6

3. 3 : 2 = 4 : 2.6