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

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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:

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

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

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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>

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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

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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:

$X_1 = 1000000 , P(X_1)= 0.0000005$