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Vinil7 [7]
3 years ago
12

2. The picture shows a feeding trough that is shaped like a right prism.

Mathematics
1 answer:
Nina [5.8K]3 years ago
8 0

Answer:

B

Step-by-step explanation:

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Determine the standard deviation (sigma)by filling in the table as part of your calculation. Consider the following data 6, 6, 1
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Answer:

A

Step-by-step explanation:

I got it right on the assignment 100%

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A father is 60 yrs old son is half his age .How old was the boy when his father was four times his age
inna [77]
Let f be the fathers age and let s be the sons age

f = 60 s = 30
when f = 45
s = 15 which is only a third if his fathers age

when f = 40
s = 10 which is a quarter of his fathers age

therefore when his father was 4 times his age, the son was 10
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Half of an orange juice mixture is orange concentrate. Explain why the ratio of orange concentrate to water is 1 : 1.
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A metalworker has a metal alloy that is 25% copper and another alloy that is 60% copper.How many kilograms of each alloy should
Neporo4naja [7]

Answer:

20kg of 25% copper alloy

30kg of 60% copper alloy

Step-by-step explanation:

There are 2 kinds of metal, first metal(A) have 25% copper while the second metal(B) has 60% copper. The metalworker want to create 50kg of metal, which means the total weight of both metals is 50kg (A+B = 50). The metalworker also want the metal made of a 46% which is 23kg(0.25A + 0.6B = 0.46*50). From these sentences, we can derive 2 equations. We can solve this with substitution.

A+B = 50

A= 50-B

Let's put the first equation into the second.

0.25A + 0.6B = 0.46 *50

0.25(50-B) + 0.6B =23

12.5 - 0.25B + 0.6B =23

0.35B=23 -12.5

B= 10.5/ 0.35= 30

Then we can solve A

A= 50-B

A= 50-30

A=20

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3 years ago
Michelle buys a motorcycle for $10,000. The motorcycle loses 20% of its value each year. The depreciation of the motorcycle is s
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