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
VladimirAG [237]
3 years ago
11

A recipe for chili uses 2 1/3 cups of beans. Keith is making 1 1/2 times the recipe. Which equation helps Keith find how many cu

ps of beans he needs?
Mathematics
2 answers:
Dafna11 [192]3 years ago
8 0
2 1/3 cups multiplied by 1 1/2
boyakko [2]3 years ago
5 0

the answer is 3.8     i hope this helps  

You might be interested in
A supplier sells 214 2 1 4 pounds of mulch for every 113 1 1 3 pounds of gravel. The supplier sells 172 pounds of mulch and grav
Dennis_Churaev [7]

Answer:

2.25 + 1 1/3=3.5833333 combined number of pounds of mulch and gravel sold.

2.25/3.583333 X 172=108 pounds of mulch that the supplier sells

(1 1/3) / 3.583333 X 172=64 pounds of gravel that the supplier sells.

Step-by-step explanation:

Let 'x' = pounds of gravel        The ratio of mulch to gravel is given  2 1/4  /  1 1/3   Which equals  9/4  /  4/3     =   27/16

So the total gravel and much is equal to   x + 27/16x = 172  

Solving for 'x'

43/16 x = 172    

x = 172 (16/43) = 64 pounds of gravel  Mulch = 27/16x = 64 (27/16)= 108 pounds

3 0
3 years ago
10. (a) Consider the following matrices: A = ( 2 ) B = (3) and C = (-3) w = Find the det(A). [1] (ii) Is the matrix A singular?
Viefleur [7K]

i) We have to find the determinant of A.

We can do this as:

\det(A)=|\begin{bmatrix}{3} & {6} \\ {1} & {-2}\end{bmatrix}|=3*(-2)-6*1=-6-6=-12

ii) We have to find if the matrix A is singular.

Singular matrix have determinant equal to 0.

This is not the case for A, as its determinant is -12. Then, A is not a singular matrix.

iii) We have to find the values of x and y so that AB = C.

We have to write the matrix multiplication and we will obtain a system of linear equations:

We can now solve the system of equations by adding 3 times the second equation to the first equation:

\begin{gathered} 3(x-2y)+(3x+6y)=3(-3)+(-3) \\ 3x-6y+3x+6y=-9-3 \\ 6x+0y=-12 \\ x=\frac{-12}{6} \\ x=-2 \end{gathered}

We can now use the second equation to find the value of y:

\begin{gathered} x-2y=-3 \\ x+3=2y \\ y=\frac{x+3}{2} \\ y=\frac{-2+3}{2} \\ y=\frac{1}{2} \end{gathered}

The values are x = -2 and y = 1/2.

iv) When we want to multiply two matrices, the required condition is that the number of columns of the matrix on the left is equal the number of rows of the matrix on the right.

In the case of A(2x2) and B(2x1), when we do A*B this condition is satisfied.

But when we try to multiply BA, the number of columns of B is not equal to the number of rows of A, so the matrix mulitplication is not possible.

Answer:

i) det(A) = -12

ii) A is not singular because singular matrices have determinant equal to zero.

iii) x = -2 and y = 1/2.

iv) Is not possible because the number of columns of the first matrix has to be equal to the number of rows of the second matrix.

6 0
1 year ago
Question 5<br> Solve for n.<br> HELP ASAP ILL GIVE U BRAINEST
11111nata11111 [884]

Answer:

The correct answer is – 4/7

7 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%28-60%29-3x%5E3-33x%2B24%20x%5E%7B2%7D%20" id="TexFormula1" title="(-60)-3x^3-33x+24 x^{2} "
soldi70 [24.7K]
First you want to reduce the brackets
Next you want to factor out the common number 3
Next you want to factor 20 + x^3 + 11x - 8x^2 by using the polynomial division method/technique 
Lastly you just factor x^2 - 9x + 20 to get the answer.

Yes you are correct, the solutions are 1, 4, and 5.
6 0
3 years ago
Write the CONTRAPOSITIVE of the following statement: If three points are coplanar, then they are collinear.
AveGali [126]

Answer:

If they are not collinear, then the three points are coplanar.

Step-by-step explanation

Contrapositive is the negative + opposite of the original statement.

5 0
3 years ago
Other questions:
  • The tank contains 896 gallons of water. The water must be shared equally among 112 persons. Each person should recelve how many
    9·1 answer
  • Even more easy questions
    11·2 answers
  • Select the description that is true of the equation y-3=5(x+2) select all that apply
    9·1 answer
  • X^2-(√3+1) x+√3=0 plzz...​
    13·1 answer
  • A market sels 6 cans of food for every 7 boxes of food. The market sold a total of 26 cars and bones today. How many of
    7·1 answer
  • Help me please I don’t understand this
    14·1 answer
  • Pleaseee help. I’m having a hard time with this problem. Giving away 20 points.
    13·1 answer
  • A number decreased by the product of 6 and 3
    11·2 answers
  • Name the following geometric figures in as many ways as you can. <br> •————•<br> X W
    8·1 answer
  • A car travels a certain distance at x km/h in 12 hours. If it travels of the way at km/h and the rest at 4x km/h, how many hours
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!