Mathematics Middle School

The cost of 4 dance lessons is $49. The cost of 12 lessons is $117. Write a linear equation to find the total cost C for x lessons.

Answers

Answer 1

Answer:

answer below, I think this is what you mean but idk

Step-by-step explanation:

Write out the 2 points.

(7,82)

(11,122)

2) Find the slope (change in y divided by change in x).

Slope = (122-82) / (11-7) = 40/4 = 10

3) Pick one of the points and insert it into point slope form.

y - 82 = 10(x-7)

y-82 = 10x-70

y = 10x + 12

4) Check your answer on the other point.

82 = 10(7) + 12

82=82

Answer 2

Answer:

4x 49 +117

Step-by-step explanation:

(1): "x4"   was replaced by   "x^4".

STEP

1

:

Equation at the end of step 1

 22x49 +  117

STEP

2

:

Final result :

 4x49 + 117

Related Questions

True or false A fraction is never a rational number

Answers

Answer:

False

Step-by-step explanation:

plz mark brainliest!

False because a rational number can be written 3 ways and one of them is a fraction ex: 4/3 4:3 4to3

Plz help!
Solve for x:
(-5 over 4) x - 5 = -35

1) 23

2) 24

3) -23

4) -24

Answers

Answer:

2) x = 24

Step-by-step explanation:

-5/4x - 5 = -35

~Add 5 to both sides

-5/4x = -30

~Multiply 4/5 to both sides

x = 24

Best of Luck!

X= 24
So it would be the second answer 2.) 24

What's the least common denominator for the fractions 2/3 and 3/5?
options:


5


10


15


20

Answers

Answer:

The least common denominator is 15.

Answer:

15

Step-by-step explanation:

Look at the attached images to answer the question!

Answers

they vary directly (im just writing this cause my answer wasn’t long enough)
A vary directly
Reason:
When number of test increases time also increases

B vary directly
Reason:
When pounds increases cost also increases

use the numbers -4, -1, 3/2, or 2/3 to write an expression that is less than -4

Answers

Answer:

-4+ -1 = -5 which is less that -4

Two collinear points are given.

(0,0)
(5,-2)

Select ALL points that do not lie on this line.

A. (−10,−4)


B. (−3,−45)


C. (−15,6)


D. (−10,4)


E. (2,−45)

Answers

Step-by-step explanation:

C. the measure of an arc between two intersecting lines or line segments ... (2, 1). The point is reflected over the line y = –x

someone please help :(

Answers

Answer:

Go up 7 and over to the left 5.

Step-by-step explanation:

This would equal -7/5

Comment below if you hate police officers and you fell like you can`t trust them anymore

Answers

Answer:

yes, police officers aren't so trustful anymore. They're becoming like their president... who won't be one for long

Step-by-step explanation:

Thanks for the free points lol

please help again like legit

Answers

Answer: A. point C

Step-by-step explanation:

√56 = 7.483

which one I will as much as questions here that I do not get this math is hard

Answers

Answer:

Its A because B and D can both be fractions and The square root of C is 7

its a obviously hope u get it right

(12.9−3.1)×6.2−2+[tex]4^{3}[/tex]

Answers

Answer:

122.76

Step-by-step explanation:

Pls help ASAP will give brainlies

Answers

Answer:

The answer is the third selection

Step-by-step explanation:

PLS show work 2
-6w + 1 = -11
Like= -6w+1-1= -11
-6w= 1
-6 -6 X=1
Right?

Answers

Answer:

[tex]\frac{7}{3} \\[/tex]

Step-by-step explanation:

you add 1 to 2 to make 3-6w= -11 then subtract 3 from both sides 3-3 cancles out and -11 - 3= -14 so  -6w= -14  then divide both sides by -6 to get 7/3

NEED HELP MATH QUESTION

An ant has a mass of approximately 4 x 10-3 grams and an elephant has a mass of approximately 8 x 106 grams.



An ant can lift up to 100 times its mass. How much can the ant lift? Express answer in scientific notation.

Answers

Answer:

sup have you googled it?

Step-by-step explanation:

Mass of elephant/mass of ant = 8x10^6/4x10^-3 = 2x10^9. Therefore, mass of elephant = 2x10^9 times mass of ant.

Answer:

7x10^9

Step-by-step explanation:

Answer the question please

Answers

Answer:

B

Step-by-step explanation:

22.4/14=1.6

12.8/8=1.6

12/7.5=1.6

26/16.25=1.6

Sorry for not having it on the first one-

Answers

Answer:

Drew is incorrect. She forgot to take the reciprocal of -1/6. Drew just did (3/4)(-1/6) which got her -3/24 instead -9/2.

Step-by-step explanation:

Same, change, reciprocal:

(3/4)(-6/1)=-18/4=-9/2.

Sadly Drew is incorrect. She forgot to take the reciprocal of -1/6.

PLEASE Write an equation for the line that contains (-8, 16) and is perpendicular to y=2/3x+10. Write the equation in slope-intercept form. Show your work!

Answers

Answer:

(-4/5, 21/5)

Step-by-step explanation:

THIS IS THE PICTURES TO MY OTHER QUESTION PLEASE ANSWER!!!! TELL ME IF ITS CORRECT AND GIVE ME AN EXPLANATION

Answers

Answer:

skp

Step-by-step explanation:

need help ASAP PLZ PLZ PLZ

Answers

Answer:

I think B

Step-by-step explanation:

Step-by-step explanation:

[tex]2x + 7 \leqslant - 13 \\ 2x \leqslant - 20 \\ x \leqslant - 10[/tex]

Please help me on this.

Answers

Answer:

The third option. (the one where it intersects on the y line)

Step-by-step explanation:

If you solve for the system of equations, you will find that it is (0,3), so it intersects on the y line. Additionally, it is on the top because it is positive.

what is $281.875 rounded to the nearest tenth?

Answers

Answer:

281.900

Step-by-step explanation:

Answer:

$281.89

Hope this helps

2. In the last 32 days, a builder complete 500
square meters of the bird habitat at the zoo. How
many square meters does the builder complete
each day? *
(20 Points)
O 12.625 square meters per day
19.75 square meters per day
6.4 square meters per day
O 15.625 square meters per day

Answers

Answer:

The answer is 15.625 square meters per day.

Step-by-step explanation:

To solve this, divide the amount (500) by the amount of time it took to do it (32 days), which gives you 15.625 square meters per day.

You divide 500 by 32 and you get 15.625

PLEASE HURRY!!
In the time that it takes Car 1 to travel 93 km, Car 2 travels 111 km. If the average speed of Car 2 is 12 km/hour faster than the speed of Car 1, then what is the speed of Car 2? Write and solve a proportion

Answers

Answer:

Car 1=64 km/h

Car 2=74 km/h

Explanation:

The formula for speed is

s=dt

For the first car, we know d

and plugging it into the formula gives us

s1=93t

We know the second car is

12 km/h

faster and the distance is

111 km

, so the formula in terms of the first car's speed would be

s1+12=111

t=s2

Now we can solve for

s1

in the second equation

s1=111t−12

Now we can set the two

s1

equal to each other and solve for

t93t=111t−1293=111−12t=18t=32hours

Now we can plug

t

into the first car equation to solve for the speed of it

s

1

=93 km32h=62 km/h

We know the second car is

12 km/h

faster, so

62 km/h+12 km/h=74 km/h

Step-by-step explanation:

A regular tube of toothpaste costs​ $2.50 for 3.2 ounces. A travel size tube costs​ $1.00 for 1.2 ounces. Compare the prices and weights using percent to decide which is the better buy.

(answer this and show your work please thank you) (choose one for the travel or regular)

The travel size costs __answer here__% as much as the regular size. The travel size has
__answer here__% as much toothpaste as the regular size. The _travel or regular_ size is the better buy.

Answers

Answer:

i would say that the $1> $2.50

Step-by-step explanation:

for $2.50 you get 3.2oz but if you get $3 of 1.2oz toothpaste is 3.6oz so you are paying $0.50 more for .4oz more of toothpaste

Can someone help me I suck at these I have
8x divided by 2 x = 1/2
and
56k divided by 2k k = 3

Answers

the answer for the second one is28 k3 =3

A function f is defined by f(x,y) = x - (xy - y). What is the value of f(8,6)

Answers

Answer:

Yes

Step-by-step explanation:

Yes

The answer is -34 because all you have to do is substitute the x and y values for (8,6) where x = 8 and y =6.
So this is the equation: f(x,y) = 8 - ((8*6) - y)
Use PEMDAS and solve

What does the graph show?
A. Every hour, 3 miles is traveled
B. The graph starts at 3 miles.
C. After 8 hours, the distance is 7 miles.
D. Every 2 hours, 1 mile is traveled.

you can choose more than one answer....

Answers

Answer:

B. the graph starts at 3 miles

Answer:

B

Step-by-step explanation:

hope this helps!

Sebastian drank 3.5 bottles of Gatorade y esterday. Each bot tle contained 1.2 pints of Gatorade. What was the number of pints of Gatorade Sebastian drank yesterday?

Answers

Answer:

4.2 because 3.5 ties 1.2 would be 4.2 i think.

Step-by-step explanation:

Answer:

i think its 4.2

Step-by-step explanation:

What is the function rule represented by the following table?

x y
0 3
1 -1
2 -5

A. y = -3 x
B. y = -2 x - 1
C. y = -2 x + 1
D. y = -4 x + 3

Answers

Answer:

D. y = -4x + 3

Step-by-step explanation:

x y

0 3      -4(0) + 3 = 3

1  -1      -4(1) + 3 =  -1

2  -5    -4(2) + 3 = -5

D. y= -3x Hope this helps you on your test

help, answer again pls

Answers

Answer:

the correct answer is C

Step-by-step explanation:

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