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luda_lava [24]
3 years ago
5

On a tree diagram for choosing a wall or portable phone in black, beige, red or white, how many branches are there?

Mathematics
2 answers:
docker41 [41]3 years ago
5 0

Answer:

8

Step-by-step explanation:

ICE Princess25 [194]3 years ago
3 0

Answer:8

Step-by-step explanation:

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When two computers are working together, they can finish updating software in 9 minutes. How long would they take individually t
tensa zangetsu [6.8K]
First computer takes x min. For 1 min it does 1/x part of work.

Second computer takes (x+24) min. For one min it does 1/(x+24) part of work.

Both computers for one min do   (1/x+1/(x+24)) part of work.

At the same time, both computers for one min do 1/9 part of work.

\frac{1}{x} + \frac{1}{x+24} = \frac{1}{9} 
\\ \\  \frac{x+24+x}{x(x+24)} =  \frac{1}{9} 
\\ \\9(2x+24)=x^{2} +24x
\\ \\ 18x+216=x^{2} +24x
\\ \\ x^{2}+6x-216=0
\\ \\ D=b^{2}-4ac=36+4*216 = 900
\\ \\ x= \frac{-b+/- \sqrt{D} }{2a}  =  \frac{-6+/-30}{2} 
\\ \\ x_{1}=-18, x_{2}=12

We can use only positive number here. So, 

for the first computer x=12 min,

 for second computer x+24=12+24= 36 min

Answer 12 min and 36 min.


7 0
4 years ago
The weight of a small bag of sugar is 2.265 kg. the student is baking cakes for a college scholarship fundraiser. it takes 100 g
wel
2.265 KG = 2265 grams/100 = 22.65 cakes
6 0
4 years ago
Please help me with the question please ASAP ASAP please please ASAP please please help please please ASAP please please IM BEGG
Oksi-84 [34.3K]

Answer:

Ok if you look at the figure, it is a vertical angle. This means that the angle opposite to each other is congruent.

m<1 is congruent to m<3

m<2 is congruent to m<4

m<3 is 60⁰ and is congruent to m<1. This means that m<1 is 60⁰. m<4 is 30⁰ and is congruent to m<2. This means that m<2 is 30⁰.

m<1 = 60⁰

m<2 = 30⁰

m<3 = 60⁰

m<4 = 30⁰

Hope this helps, thank you :) !!

4 0
3 years ago
Read 2 more answers
A restaurant manager records the number of tables seated (x) and the total number of cups of complimentary salsa (y) served. Whi
Blizzard [7]

Answer:

The following below are those that shows the correct values for then median-fit method of the restaurant relationship between the number of tables seated (x) and the total number of cups of complementary salsa served (y):

O.  The middle summary point is (52, 103.75).

O.  The right summary point is (63, 160).

O.  The middle summary point is (52, 103.75).

Step-by-step explanation:

4 0
3 years ago
Question 20 please make (x) the subject of the formula
Masja [62]

Answer:

The answer is

\frac{ {x}^{2}  - n}{m}  =  { (\frac{ {a}^{2} }{b}) }^{a}  \\  {x}^{2}  - n =  m{( \frac{ {a}^{2} }{b} })^{a} \\  {x}^{2}   = m {( \frac{ {a}^{2} }{b} )}^{a}  + n \\ x =  \sqrt{m {( \frac{ {a}^{2} }{b}) }^{4}  - n}

Step-by-step explanation:

I am a math teacher. If you need any explanation you in mathematics you can communicate with me on Whats on this number 01557831028

3 0
3 years ago
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