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jekas [21]
3 years ago
10

The smallest to largest 0.354 0.4 0.35 0.345

Mathematics
2 answers:
N76 [4]3 years ago
5 0

Answer:0.345, 0.35, 0.354, 0.4

Step-by-step explanation:

Elodia [21]3 years ago
3 0
0.345, 0.35, 0.354, 0.4
The answer
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A metalworker has a metal alloy that is 30​% copper and another alloy that is 55​% copper. How many kilograms of each alloy shou
Ilya [14]
<h3>Answer:</h3>
  • 32 kg of 30% copper
  • 48 kg of 55% copper
<h3>Step-by-step explanation:</h3>

Let x represent the mass of 55% copper alloy that is to be used in the mix. Then 80-x is the mass of 30% copper alloy to be used. The total amount of copper in the mix is then ...

... 0.55x + 0.30(80-x) = 0.45·80

... 0.25x = 12 . . . . . . simplify, subtract 24

... x = 48 . . . . . . . . . divide by the coefficient of x

... 80-x = 32 . . . . . . the mass of 30% copper alloy required

The metalworker should combine 32 kg of 30% copper alloy with 48 kg of 55% copper alloy to make 80 kg of 45% copper alloy.

4 0
3 years ago
Which of these expressions represent the sum of 3 and n?
Dmitrij [34]
Don't really need to post the options to know what the expression(s) should look like. 

"Sum of" tells you its addition and because it's addition the order of the two terms (the 3 and the N) don't matter. 

Your correct expressions are:

3 + n
or 
n + 3
8 0
3 years ago
The governor's approval rating dropped by 40% to 18%. What was his approval rating before?
svet-max [94.6K]

Answer:

58%

Step-by-step explanation:

58 cuz 40+18=58

6 0
3 years ago
What does this equal 12*5*6*100*67*82*200*419*638*35*134
Andrew [12]

Answer:

4.959395e+19

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What are the dimensions of the rectangle shown on the coordinate plane?
Free_Kalibri [48]

Answer:

A

Step-by-step explanation:

The base units is 5 unit and the height is 4 units.

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