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Nostrana [21]
2 years ago
12

2.75+0.003+0.158 it has been a while since I have had a math class. I forgot how I am suppose to line the decimal points up. Tha

nk you
Mathematics
1 answer:
g100num [7]2 years ago
4 0
      2.750
      0.003
+    0.558
________
       3.421
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Rectangle JKLM is similar to rectangle WXYZ . What is the scale factor of a dilation from JKLM to WXYZ ? Enter your answer in th
Oxana [17]
JKLM to WXYZ

JM = 9                ZW = 13.5
JK = 12               WX = 18

the scale factor is what u multiply the original shape to get the coordinates of the other shape.
13.5 / 9 = 1.5

9 * 1.5 = 13.5
12 * 1.5 = 18

so ur scale factor is 1.5 (because if u multiply 1.5 by the original shape, u get the new shape)
7 0
3 years ago
A bag contains 5 red marbles, 3 blue marbles and 6 green marbles. If three marbles
Zanzabum

Answer:

333/364 or 0.915

Step-by-step explanation:

Red marbles = 5

Blue marble = 3

Green marble = 6

Total number of marbles in the bag = 5 + 3 6 = 14

1. The first draw, we have 5 red marbles out of 14 marbles = 5 / 14

Now we have 13 marbles left of which 4 are red.

2. Second draw, we have 4 red marbles and a total of 13 marbles = 4 / 13

3. Third draw, we have 12 marbles left and 3 are red. = 3 / 12 = 1 / 4

Probability of drawing all the red marbles = (5 / 14) * (4 / 13) * (1 / 4) = 333 / 364 = 0.9148

3 0
3 years ago
Rufus appears before Bill and Ted and offers them a bogus proposition: they must paint a house together with their magical guita
jolli1 [7]

Answer:

6.79

Step-by-step explanation:

-Let X denote the total amount of the job.

-The job has to be done in 5 hrs, therefore the portion done every hour is:

Rate=\frac{Total}{Time}\\\\=\frac{X}{5}\\\\=\frac{1}{5}X=0.2X

Therefore, the rate of Bill and Ted working jointly must equal the rate calculated above:

R_{Bill}=\frac{X}{19}\\\\=\frac{1}{19}X\\\\R_{Bill}+R_{Ted}=R_{required}\\\\\frac{1}{19}X+R_{Ted}=\frac{1}{5}X\\\\R_{Ted}=\frac{1}{5}X-\frac{1}{19}X\\\\=\frac{14}{95}X\\\\\therefore \frac{14}{95}X=1\ hr\\\\X=1\div \frac{14}{95}\\\\=6.7857\approx 6.79hrs

Hence, Bill working alone should complete the house in 6.79 hrs

6 0
3 years ago
-2 2/3, -5 1/3, -10 2/3, -21 1/3, -41 2/3 Which formula can be used to describe the sequence?
Gelneren [198K]

Each term is double the one before it, so the appropriate choice is ...

... D. f(x+1) = 2f(x)

7 0
3 years ago
Read 2 more answers
Micah is buying candy for the Halloween party. There will be 13 adults and
emmainna [20.7K]
Micah will need to buy 7 packages.

13 x 3 = 39
39 + 17 = 56
56 / 8 = 7

Hope this helps :)
3 0
3 years ago
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