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yan [13]
3 years ago
12

You have a package of 20 assorted thank-you cards. You pick the four cards shown. How many of the 20 cards would you expect to h

ave flowers on them?

Mathematics
2 answers:
fgiga [73]3 years ago
8 0

Answer:

5 cards

Step-by-step explanation:

There's 20 cards and in 1 group, 4 cards. There are 1 out of 4 cards in each group. If you keep counting, there will be 5 in total, because 4*5=20. Think of it like this: Each period is a card without flowers and each comma is a card with flowers.

..., ..., ..., ..., ...,

Hope this helps!

AlladinOne [14]3 years ago
7 0

Answer:

5 out of 20

Step-by-step explanation:

1 out of four cards have flowers on them which it means you can expect a fourth of the 20 twenty cards to have flowers. 20 divided by 4 is five.

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Troy shares a family bag of 24 Jet Plane
nlexa [21]

Answer:

Troy ate 7 lollies.

Step-by-step explanation:

You start out by finding how many lollies Troy's two friends ate out of the 24 lollies. To find out how much Tane ate out of the 24 Jet Plane lollies you simply <u><em>divide 24 by the denominator</em></u> --> 24/3=8, <em><u>then you multiply your answer by the numerator</u></em> --> 8x1=8, so Tane ate 8 of the 24 lollies. Repeat this same process for Levi, and your answer should be 9.

Because Tane ate <u>8</u><u> out of the 24</u> lollies and Levi ate <u>9</u><u> out of the 24 lollies</u>, that indicates that <u>17</u><u> out of the 24 lollies</u> are gone (just add your results, 8+9=17). This leaves Troy with only 7 lollies (<em><u>subtract 17 from 24</u></em> to find out how many lollies are left, 24-17=7).

4 0
2 years ago
Read 2 more answers
Write the equation in slope intercept form 2x-3y=6
Crazy boy [7]
Slope is 2/3
Y Intercept is -2

hope this helps

6 0
3 years ago
Read 2 more answers
PLEASE HELP FAST!!!!!!!!!
tresset_1 [31]
B is definitely the answer
4 0
3 years ago
Four sets of three squared
yKpoI14uk [10]

Answer:

4^3

Step-by-step explanation:

Four sets of three Squared

To start, you will need to get the set(base number) and get the exponent 3 and put it on the top.

4^3

Hope this helps!

8 0
3 years ago
Use a matrix to solve the system:
Romashka-Z-Leto [24]

Answer:

(2.83 , 1 , 4)

Step-by-step explanation:

2x+2y-z=4\\4x-2y-2z=2\\3x+3y-4z=-4\\

Rewrite these equations in matrix form

\left[\begin{array}{ccc}2&2&-1\\4&-2&-2\\3&3&-4\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right]=\left[\begin{array}{ccc}4\\2\\-4\end{array}\right] \\

we can write it like this,

AX=B\\X=A^{-1}B

so to solve it we need to take the inverse of the 3 x 3 matrix A then multiply it by B.

We get the inverse of matrix A,

A^{-1}=\left[\begin{array}{ccc}7/15&1/6&-1/5\\1/3&-1/6&0\\3/5&0&-2/5\end{array}\right]  \\

now multiply the matrix with B

X=A^{-1}B\\\\\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}7/15&1/6&-1/5\\1/3&-1/6&0\\3/5&0&-2/5\end{array}\right]\left[\begin{array}{ccc}4\\2\\-4\end{array}\right] \\\\\\\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}2.83\\1\\4\end{array}\right] \\

4 0
2 years ago
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