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AVprozaik [17]
2 years ago
8

A jar contains 0.85 liter of strawberry juice and 0.50 liter of mango juice. Celina poured 0.15 liter of watermelon juice into t

he jar. She then drank 0.30 liter of the mixture. Part A: Write an expression to represent the total amount of juice left in the jar. (5 points) Part B: Identify which property is used in each step to simplify the expression. (5 points)
Mathematics
1 answer:
Klio2033 [76]2 years ago
5 0
For this one, you need to combine all of them.
So, 0.85 + 0.5 + 0.15 = 1.5
So, there was a total of 1.5 liters in the jar.
Then, she drank 0.3 liters, so we need to subtract 0.3 from 1.5 which would give you an equal of 1.2 liters left in the jar.
The expression would look like this
( 0.85 + 0.5 + 0.15 ) - 0.3 = 1.2
I hope this helps.
YOU'RE WELCOME :D
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The time between failures for an electrical appliance is exponentially distributed with a mean of 25 months. What is the probabi
katrin [286]

Answer:

The probability that the next failure will not occur before 30 months have elapsed is 0.0454

Step-by-step explanation:

Using Poisson distribution  where

t= number of units of time

x= number of occurrences in t units of time

λ= average number of occurrences per unit of time

P(x;λt) = e raise to power (-λt)  multiplied by λtˣ divided by x!

here λt = 25

x= 30

P(x= 30) = 25³⁰e⁻²⁵/ 30!

P (x= 30) = 8.67 E41 * 1.3887 E-11/30!    (where E= exponent)

P (x=30) = 1.204 E31/30!

Solving it with a statistical calculator would give

P (x=30) = 0.0454

The probability that the next failure will not occur before 30 months have elapsed is 0.0454

7 0
2 years ago
Part A: Find a rational number that is between 7.7 and 7.9. Explain why it is rational. (2 points)
cluponka [151]
Part A.
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Part B.
sqrt(60) = 7.75
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2 years ago
What is 6 kg 650g to the nearest 1/2kg
zysi [14]
Given:
6kg 650g
1/2 kg

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1 kg = 1000 grams

We need to convert these figures from kg to g.

6 kg * 1000g/kg = 6*1000g = 6,000 g

6,000 g + 650 g = 6,650 g

6,650 g ÷ 500 g = 13.3 round off to 13

13 * 500 g = 6,500

6 kg 650 g is nearest to 6,500 g.
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Answer: 109.5 km/ hr

Step-by-step explanation:

Distance = 73 km

Time = 40 minutes = 40/60 = 2/3 hours

Speed = Distance / time

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= 73 x 3/2 = 219 / 2 = 109.5 km/hr

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