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mixer [17]
3 years ago
13

Three and two sevenths plus eight and one third

Mathematics
2 answers:
quester [9]3 years ago
5 0
Eleven and thirteen over 21
statuscvo [17]3 years ago
3 0
10 11/21 got this answer by finding common denominator of 23/7 and 25/3 which was 21 that gave me 69/21 + 152/3 added that up then I got 221/21 then I simplified to get 10 11/21
You might be interested in
Tyrone 400 yards in 1 minute and 20 seconds Alejandro run 150 yards in 25 seconds who ran faster and by how much​
yawa3891 [41]

Answer:

Tyrone

Step-by-step explanation:

Tyrone=\frac{400 yards}{1 minute} \\\\Alejandro=\frac{150 yards}{25 seconds}\\\\60 seconds = 1 minute\\\\\frac{60}{25} =2.4\\\\

Alejandro=\frac{150 *2.4}{25 *2.4}\\\\Alejandro=\frac{360 yards}{1 minute}\\\\\\400>360

3 0
3 years ago
8.7 billion in scientific notation
lisov135 [29]
<span><span>1.       </span>Give the scientific notation of 8.7 billion.
8.7 billion = 8 700 000 000
Scientific notation is the process of multiplying the given number by 10 to the power of n.
Since  billion has 9 zeros that’s equals to 10^9
=> 8.7 x 10^9
let’s try solving this
=> 8.7 x (10 * 10 * 10 * 10 * 10 * 10 * 10 * 10 * 10)
=> 8.7 x 1 000 000 000
=> 8 700 000 000
Thus, our scientific notation of 8.7 billion is 8.7 x 10^9</span>



3 0
3 years ago
Read 2 more answers
Help please??????????
marishachu [46]
MachineA: y=120x

MachineA could pack in 12 min
y=120(12)
y=1440

MachineB could pack in 12 min
y=150(12)
y=1800

MachineB pack than MachineA
1800-1440
=360 candies
5 0
3 years ago
In a lottery game a player wins $1,000,000 with probability 0.0000005, wins $200,000 with probability0.000002, and wins $30,000
MariettaO [177]

Answer:

X_1 = 1000000 , P(X_1)= 0.0000005

X_2 = 200000 , P(X_2)= 0.000002

X_3 = 30000 , P(X_3)= 0.00001

X_4 = -2, P(X_4) = 1-0.0000005-0.000002-0.00001= 0.9999875

And then replacing we have this for the expected value:

E(X) = 1000000*0.0000005 +200000*0.000002+30000*0.00001 2*0.9999875

And after do the math we got:

E(X) = -0.79998

And then the expected value for this game is -0.79998 a negative result means NOT a win.

Step-by-step explanation:

For this case we can define the random variable X as the amount that we can win. We can find the expected value with the following formula:

E(X) = \sum_{i=1}^n X_i P(X_i)

And we have the following probabilities and possible values given:

X_1 = 1000000 , P(X_1)= 0.0000005

X_2 = 200000 , P(X_2)= 0.000002

X_3 = 30000 , P(X_3)= 0.00001

X_4 = -2, P(X_4) = 1-0.0000005-0.000002-0.00001= 0.9999875

And then replacing we have this for the expected value:

E(X) = 1000000*0.0000005 +200000*0.000002+30000*0.00001 2*0.9999875

And after do the math we got:

E(X) = -0.79998

And then the expected value for this game is -0.79998 a negative result means NOT a win.

7 0
3 years ago
1.5x-6=9 what is the number for x​
Svet_ta [14]

Answer:

x=10

Step-by-step explanation:

1.5x-6=9

     +6  +6

1.5x=15

/1.5    /1.5

x=10

5 0
4 years ago
Read 2 more answers
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