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
MakcuM [25]
3 years ago
9

the cafeteria ordered 400 paper plates. they usef 226 at breakfast. they bought 100 more. Then, they used some plates for lunch.

Now there are 78 plates. How many plates did they use at lunch?
Mathematics
2 answers:
andreev551 [17]3 years ago
8 0
306 of the plates were use at lunch
vazorg [7]3 years ago
7 0
196 Plates used for lunch. 400-226=174 174+100=274 274-78=196 Plates Used For Lunch
You might be interested in
Karl is building a rectangular garden bed. The length is 6 feet. She has 20 feet of boards to make the sides. Write and solve an
natali 33 [55]

Answer:

The width of the garden bed must be less than or equal to 4 feet.

w\leq4

Explanation:

Given that;

She has 20 feet of boards to make the sides.

The perimeter of the garden bed must not be more than 20 feet

\begin{gathered} P=2l+2w\leq20 \\ 2l+2w\leq20 \end{gathered}

Given;

The length is 6 feet;

l=6

To get the inequality for the width w, let us substitute the value of the length into the inequality above and simplify;

\begin{gathered} 2l+2w\leq20 \\ 2(6)+2w\leq20 \\ 12+2w\leq20 \\ 2w\leq20-12 \\ 2w\leq8 \\ \frac{2w}{2}\leq\frac{8}{2} \\ w\leq4 \end{gathered}

Therefore, the width of the garden bed must be less than or equal to 4 feet.

w\leq4

8 0
1 year ago
Free brainless answer pleaseeee and morw
sergejj [24]
1. alternate interior angles, x= -10
2. corresponding angles, x= 30
7 0
4 years ago
How do i solve this.?
alexgriva [62]
4x + 10 = -26
-10 -10

4x = -36

Then -36 divided by 4

X= -9 -9 is the answer.
7 0
3 years ago
(x-5)1/2+5=2<br> (x-5)1/2=-3<br> [(x-5)^1/2]^2=(-3)^2
Studentka2010 [4]

Answer:

x = 14

Step-by-step explanation:

You want to solve for x, right?

(x-5)^(1/2)+5=2

You have it right so far.

(x - 5)^(1/2) = -3

(x - 5)  =  (-3)^2

x - 5 = 9

x = 9 + 5 = 14

3 0
4 years ago
please help!! Drag each pair of equations to show whether the system has no solution, one solution, or infinitely many solutions
Vanyuwa [196]

For the given system of equations, considering different systems are split by ;, we have that:

  • No solutions: 3y = x + 2, 9y = 3x + 7; y = 2x + 3, y = 2x + 5
  • One solution: 2y = 3x, -5y = -10x,; x = 6, y = 9.
  • Infinitely many solutions: y = 5x + 2, 3y = 15x + 6.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

It's equations can be written in the format:

Ax = b

Using the above format, we have that:

  • If A is different from zero, the system has one solution.
  • If A is zero and B is different of zero, the system has no solutions.
  • If both are zero, the system has infinite solutions.

At the first system, multiplying the first equation by -3 and adding with the second, we end up with:

0y = 0x + 2

0 = -2

Which is a false statement, hence it has no solutions.

At the second system, the equations are multiples, hence it has infinite solutions.

At the third system, the coefficients are not zero and are not multiples, and it has one solution.

In the fourth system, the one solution is already given.

At the fifth system, we have that:

2x + 3 = 2x + 5

0x = 2

Hence no solutions.

To learn more about system of equations, you can take a look at brainly.com/question/24342899

5 0
2 years ago
Other questions:
  • How do you do this?
    8·1 answer
  • Drew has 50 red, green, and blue marbles. He has six more red marbles than blue marbles and four fewer green marbles tahn blue m
    8·1 answer
  • Suppose a stat 121 professor would like to predict the mean final exam score of the students who obtained 80% on exam 3. What ki
    14·1 answer
  • The area of a polygon is the number of square units contained in its interior true or false
    10·1 answer
  • Find the area of the parallelogram. HELP ASAP!!
    14·2 answers
  • What theorem shows that ΔACE ≅ ΔBCD?
    11·1 answer
  • Sam asks five of his friends in his accelerated ELA class.
    11·2 answers
  • An item was purchased for m dollars. Sales tax is 8%. Write an expression that represents
    14·1 answer
  • Write the equation of the line in slope intercept form that has the given slope and the y-intercept
    14·1 answer
  • HELP ME PLEASE!!!<br> Find the area of the triangle shown below.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!