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3 years ago

15

Jamie's quilt is made of 9 green squares and 12 yellow squares. What is the ratio of the number of yellow squares compared to th

e total number of squares on the quilt? Please write your answer in one of the three ways we learned about.

1 answer:

IRINA_888 [86]3 years ago

5 0

Answer:

yellow = 12:9 = green

yellow = 4:3 = green

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Someone please help !!easy !

r-ruslan [8.4K]

Answer:

B) 0, 4, 8, 12

Step-by-step explanation:

If you buy no pumpkins is costs $0. If you buy one pumpkin it costs $4. If you buy two pumpkins it costs $8. If you buy three pumpkins it costs $12.

4 0

3 years ago

Write the given linear system in matrix form. Assume X = x y z . dx dt = −8x + 7y − 9z dy dt = 5x − y dz dt = 10x + 7y + 8z

Akimi4 [234]

Answer:

The matrix form of given linear system is

$\begin{bmatrix}x'\\ y'\\ z'\end{bmatrix}=\begin{bmatrix}-8 & 7 &-9\\ 5 & -1 & 0\\ 10 & 7 & 8\end{bmatrix}\begin{bmatrix}x\\ y\\ z\end{bmatrix}$

Step-by-step explanation:

Let as assume that

$X=\begin{bmatrix}x\\ y\\ z\end{bmatrix}$

Given differential equations are

$\frac{dx}{dt}=-8x+7y-9z$

$\frac{dy}{dt}=5x-y$

$\frac{dz}{dt}=10x+7y+8z$

We need to find the matrix form of given linear system.

Write the elements of left side in a column matrix.

Write all the coefficients in one matrix first which is called a coefficient matrix. Multiply coefficient matrix with the variables matrix and equate left and right side.

$\begin{bmatrix}\frac{dx}{dt}\\ \frac{dy}{dt}\\ \frac{dz}{dt}\end{bmatrix}=\begin{bmatrix}-8 & 7 &-9\\ 5 & -1 & 0\\ 10 & 7 & 8\end{bmatrix}\begin{bmatrix}x\\ y\\ z\end{bmatrix}$

It can be written as

$\begin{bmatrix}x'\\ y'\\ z'\end{bmatrix}=\begin{bmatrix}-8 & 7 &-9\\ 5 & -1 & 0\\ 10 & 7 & 8\end{bmatrix}\begin{bmatrix}x\\ y\\ z\end{bmatrix}$

6 0

4 years ago

What is 32 * 54 with the work shown

Gnesinka [82]

Answer:

32*54=1728

Step-by-step explanation:

32

*54

=128

+1600

=1728

7 0

3 years ago

Read 2 more answers

Find the product........................................

Verdich [7]

For this case we must find the product of $(2x + 3) (2x-3)$ , for this, we must apply the distributive property, which by definition establishes that:

$(a + b) (c + d) = ac + ad + bc + bd$

So:

$(2x + 3) (2x-3) = (2x) ^ 2 + (2x) (- 3) + (3) (2x) + (3) (- 3)$

considering that $+ * - = -$

$(2x + 3) (2x-3) = 4x ^ 2-6x + 6x-9\\(2x + 3) (2x-3) = 4x ^ 2-9$

Answer:

Option A

8 0

4 years ago

Doors for the small cabinets are 11.5 inches long . doors for the large cabinet are 2.3 time as long as the door for a small cab

aivan3 [116]

4 larger door can be cut for a board that is 10.5 feet long

Step-by-step explanation:

The given is:

Doors for the small cabinets are 11.5 inches long
Doors for the large cabinet are 2.3 time as long as the door for a small cabinet
There is a board that is 10 1/2 feet long

We need to find how many larger door can be cut from the board

∵ 1 foot = 12 inches

∵ The board is $10\frac{1}{2}$ feet long

∵ $10\frac{1}{2}$ feet = $10\frac{1}{2}$ × 12 = 126 inches

∵ The small door is 11.5 inches long

∵ The larger door is 2.3 times as long as the small door

∴ The larger door = 11.5 × 2.3 = 26.45 inches long

Divide the length of the board by the length of the larger door to find

how many larger door can be cut from the board

∵ The length of the board = 126 inches

∵ The length of the larger door = 26.45 inches

∵ 126 ÷ 26.45 = 4.76

∴ 4 larger doors can be cut from the board

4 larger door can be cut for a board that is 10.5 feet long

Learn more:

You can learn more about word problems in brainly.com/question/1931524

#LearnwithBrainly

3 0

3 years ago