1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ahat [919]
2 years ago
15

A teacher is buying supplies for an upcoming art project. She buys x bottles of paint for $1.29 each. She buys 8 more canvases t

han bottles paint for $1.89 each. Her total pretax cost is $37.38. How many of each item is she buying?
Mathematics
2 answers:
Oksi-84 [34.3K]2 years ago
7 0

Answer:

7 bottles of paint and 15 canvases

Step-by-step explanation:

I'm letting x stand for the number of bottles of paint and y stand for the number of canvases

1.29x+1.89y=37.38

and y=x+8

Since the y value is isolated I can just substitute the right side of the y= equation into the original like so

1.29x+1.89(x+8)=37.38

I then distributed the 1.89 to each of the terms in the parentheses

1.29x+1.89x+15.12=37.38

I then combined like terms to get

3.18x+15.12=37.38

Then you subtract 15.12 from both sides to get

3.18x=22.26

and last we divide both sides by 3.18 to get

x=7

Now that we have x, we still need to solve for y, so I take the original equation y=x+8 and substitute in the value we solved for x to get

y=7+8

y=15

Don't forget the labels you gave each variable earlier in the problem when answering!

Elena L [17]2 years ago
4 0

Answer:

She is buying 7 bottles and 15 canvases of paint

Step-by-step explanation:

You might be interested in
A truck has a force of 2000 newtons and is moving 10 miles per hour. How much mass does the truck have?
worty [1.4K]

Answer:

Force= Mass×Accelaraion

F=m×a

But as The unit of accelaration is given miles per hour and the SI is meters per second sqaure we have to convert 10mph to m/s²

Thus, we have 10mph = 4.47 meters per second square. (i converted using scientific calculator)

So now we have,

2000N= m×4.47m/s²

= 2000/4.47m/s²=m

= 447.42

Thus the mass of the object is 447.42 (i am not sure of units)

7 0
2 years ago
Read 2 more answers
Please help! Important
guapka [62]
Add the two angles and set them equal to 180, them solve for x
3 0
3 years ago
Read 2 more answers
Hi! how many times does 9 go into 67???? plz help me
Nina [5.8K]

Answer:

it goes into 67 7 times

Step-by-step explanation:


8 0
3 years ago
Read 2 more answers
There are 4 triangles and 20 squares what is the simplest ratio of triangles to squares
Svetllana [295]

Answer: 4:20 but that simplified would be 1:5

Triangles to squares

8 0
3 years ago
What is the equation of the blue graph?
vovikov84 [41]

Answer:

b

Step-by-step explanation:

I just did it in my math class and got it right

7 0
3 years ago
Other questions:
  • Franz and his friends are using the spinners below to play a game.
    12·3 answers
  • What is the length of side x? *<br> 390<br> 18
    11·1 answer
  • How does the order of operations relate to solving multi-step equations? Use examples of solving an equation, and then evaluatin
    12·1 answer
  • FELFER
    10·1 answer
  • Plz help I need to know which equation is correct
    6·1 answer
  • Select the correct name for the following line.
    15·2 answers
  • Which equation shows the inverse property of multiplication? 4 + (-4) = 0 -8 + (-3) = -3 + (-8) mc010-1.jpg mc010-2.jpg
    5·2 answers
  • (0,b)<br> (-a, 0)<br> (0,0)<br> (a,0)<br> (0, -b)
    7·1 answer
  • Simplify 39:143:39<br> Anyone know???
    15·2 answers
  • In which quadrant does the point (-6,4) lie?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!