I need help with this

Answer: 9/2

Step-by-step explanation:

21=2(6) + 2(?)

21=12 + 2(?)

9=2(?)

(9/2)=?

Answer:

It's 47

Step-by-step explanation:

I hope this helps you

Answer:

3x+45

/3x /3x

x= 15

Answer: 20 children

Step-by-step explanation:

Given

Year 4: 11 cannot swim

Year 5: 21 can swim

Year 6: 18 of 30 can swim

Total 96 children

Total 37 cannot swim

First Step: find the number of people from year 5 who cannot swim

Second Step: find the number of children in year 5

Third Step: find the number of children in year 4 who can swim

Hope this helps!! :)

Please let me know if you have any questions

Answer:

[tex]y=-\frac{3(x +2)}{2}[/tex]

Step-by-step explanation:

We have an equation, and the question is asking for us to solve y. So to solve, we have to isolate y.

6x - 4y = 12

Subtract 6x from both sides :

-4y = 12 - 6x

Divide both sides by -4 :

[tex]y=-\frac{3(x+2)}{2}[/tex]

Answer:

60 feet. :)

Step-by-step explanation:

This is the formula you want to use:

[tex]l*w*h=V[/tex]

It means that length·width·height = Volume. So, 5 · 4 · 3 = 60 ft.

Answer:

Step-by-step explanation:

No, it's not always true

Answer: 2

Step-by-step explanation:

To find the degree, use the exponent. An exponent of two means a degree of two, like an exponent of four means a degree of four

Answer:

1) The puppy takes 10 minutes, the kitty takes 15 minutes.

2) The mama bear takes 9 minutes, the cub takes 18 minutes

3) The sidekick goes at 600 mph, the hero goes at 500 mph.

4) 10 Minutes

5) RSM is so hard, amiright?

Step-by-step explanation:

1) You can simplify the word problem into the equation 1/x + 1/x+5 = 1/6.    For problems like these, you have to simplify the last part to a fraction, not a whole number.   Then you just solve.

2) Same thing.  1/x + 1/x+9 = 1/6.   Solve.  Boom.  Done.

3) A bit different, but it simplifies to 1800/x-100 - 1800/x = .6.   Solve.   C'mon, you should've been able to do this one.

4) Harder, simplifies to 75/x+225/x+15+2.5 = 300/x.   You get the last part because the time the bear took is equal to the time it would normally take, which is the entire distance over the normal pace.   Then you solve and there we go, most of your RSM homework is done.  

Answer:

Puppy takes 10 sec.

Kitty takes 15 sec.

The mama bear can do it in 9 seconds

The cub can do it in 18 seconds

Superhero: 500 km/h

Sidekick: 600 km/h

Answer:you should add the sides

Step-by-step explanation:

Answer:

722.50

Step-by-step explanation:

not exactly sure its right but i did use a calculator so I'm pretty sure it's right

Given:

------------------------------------------------------------------

original price - discount = sales price

Include 13% tax... price + sales tax = total price of the phone

Answer: Hi I just finnish this assignment yesterdaylol

im still doing revisons on my "works shown" but heres a screenshot of my work (DO NOT JUST COPY N PASTE MY WORK, THE TEACHERS WILL KNOW )(U HAVE TO WRITE IT ON A PICE OF PAPER BY UR SELF)

Step-by-step explanation: do u go to cava (10th grade?)

im wondering because i need help on an assignment lol.

also, here is the feed back i resived  from my teacher.

"#3 The graph needs to be more accurate such as same distance, symmetric, and height.  Missing steps to finding b.  Use the formula for finding the period, but instead solve for b.  (-5)

Show how the period is found.  Include a table showing substitution for the five points.  attend office hours at 8:30am if you need help with this."

when you finish the revisions can you please show me it too. PLZ MARK BRAINLIEST

Thank you.

and ur welcome lol

Answer:

b

Step-by-step explanation:

Answer:

y = - [tex]\frac{1}{4}[/tex] x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c

Given

2x + 8y = 24 ( subtract 2x from both sides )

8y = - 2x + 24 ( divide all terms by 8 )

y = - [tex]\frac{1}{4}[/tex] x + 3 ← in slope- intercept form

Answer:

8

Step-by-step explanation:

Isolate and solve for C

[tex]c + (-20) = -12\\c - 20 = -12\\c = -12+20\\c = 8[/tex]

Answer:

C = 8

Step-by-step explanation:

By reversing the equation, you can get the result.

-12 + 20 = ?

-12 + 20 = 8

Proofcheck:

8 + (-20) = ?

8 + (-20) = -12

Answer:

JL = 118/5

Step-by-step explanation:

Because K is the midpoint, we know that JK and KL are going to equal each other because of the Segment Addition Postulate.

JK + KL = JL

So we know that JK = 11x-7 and KL = 6x+2

Now, we solve for X.

11x-7 = 6x+2

In order to get X alone, we must get the X's all to one side and the numbers to one side.

11x-7 = 6x+2

   +7        +7

11x = 6x + 9

-6x   -6x

5x = 9

x = 9/5

Now, we plug X into the equations.

JK = 11x - 7

JK = 11(9/5) - 7

JK = 99/5 - 7

JK = 64/5

KL = 6x + 2

KL = 6(9/5) + 2

KL = 54/5

Now, we add the numbers (fractions, really) together so that we can get the whole value of the line.

64/5 + 54/5 = 118/5

Answer:

Probably -3

Step-by-step explanation:

If it's going by 3s, then it should be -3.

Answer:

-3

Step-by-step explanation:

Answer:

15,600 Gallons

Step-by-step explanation:

The 30% of 12000 is 3600 thus, Jessica's family used 15600 gallons of water.

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

As per the given,

Last used of water = 12000

30% of 12000 = (30/100)12000 = 3600

Water used in the current year = 12000 + 3600 = 15600 gallons.

Hence "The 30% of 12000 is 3600 thus, Jessica's family used 15600 gallons of water".

For more about the percentage,

brainly.com/question/13450942

#SPJ2

All the equivalent expressions are,

1.35X and (1+0.35)x.

The correct options are a and d.

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

The value of X increased by 35%.

Here, we will use the percentage formula.

The value is increased by 35%.

That means,

100 + 35 = 135%

135% in decimal form is 1.35.

In expression form as subject to X,

X(1.35)

In expressed form,

= X + 0.35X

= 1.35X

Therefore, equivalent expressions are 1.35X and (1+0.35)x.

To learn more about the percentage;

https://brainly.com/question/24159063

#SPJ2

Answer:

1/2

Step-by-step explanation:

There are 6 marbles that are either red or green out of 12 total marbles, so you have:

6/12 = 1/2

Answer:

1/2

Step-by-step explanation:

To find the probability, you need to put the number of what you want to know the probability of over the total. In this case, we want to know what the probability of red and green over the total is. So, hence the equation:

[tex]\frac{5+1}{12}[/tex] or [tex]\frac{6}{12}[/tex] which can be simplified to [tex]\frac{1}{2}[/tex].

Answer:

Step-by-step explanation:

Answer:

r=7/5

Step-by-step explanation:

Answer:

Step-by-step explanation:

The x value is always going to be - 4. The y value will vary quite a bit.

x + 4 = 0 is the equation of the line. The slope is undefined. There is no y intercept. There is an x intercept; it is minus 4.

Answer:

2160

Step-by-step explanation:

45x4800

divide that by 100!

Answer:

60 cm ( squared )

Step-by-step explanation:

you can find the area of the trapezoid ( by decomposing it into other shapes ) by separating two triangles, and using the formula to find the area of triangles, which is A= 1/2 ( b x h ) and add the answer to those together ( 16 cm squared and 4 cm squared ), and after that, you can find the area to the rectangle by multiplying the l x w, which is 10 x 4 ( after separating the triangles.). That equals 40, and when you add them all together ( 16 + 4 + 40 ) it equals 60 cm (squared).

Answer:

1a. x=2 1b. x= -1

Step-by-step explanation:

Answer:

(4ad) - 16/169c -1.

Step-by-step explanation:

Alright. Let's start.

(4ad) - [tex]\frac{1}{13}[/tex]b * [tex]\frac{16a}{13abc}[/tex] -1 is the expression.

So, by PEMDAS, we need to do the multiplication first. We can also say that 1/13b is the same as b/13.

(4ad) - 16ab/169abc -1     Now let's cancel out the b and a on numerator and denominator.

(4ad) - 16/169c -1.

Hope this helps!

Answer:

83.96 (approximately)

Step-by-step explanation:

I am not completely sure what the problem is asking, just like the last one, but I believe that you are just supposed to take the inverse of cosine. So, in your calculator, make sure it is in degrees mode, then usually you have to click the 2nd key and then cosine. You use the inverse of cosine when two sides are given, but you are not given the angle.

It should look like:

[tex]cos^{-1}(\frac{4}{38})[/tex], which is approximately 83.96.

Hopefully this is right, if not, please let me know. Good luck.