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klasskru [66]
3 years ago
13

A 52 foot piece of fishing line needs to be cut into 2 1/2 sections to make as many fishing rods as possible. How much of the fi

shing line will be left over?
Mathematics
1 answer:
velikii [3]3 years ago
5 0
72 buddy here to help
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Easy need an awnser plz.
larisa86 [58]
The value of X is equal to 7
4 0
3 years ago
A metalworker has a metal alloy that is 20​% copper and another alloy that is 60​% copper. How many kilograms of each alloy shou
puteri [66]
<h3>Answer:</h3>
  • <u>20</u> kg of 20%
  • <u>80</u> kg of 60%
<h3>Step-by-step explanation:</h3>

I like to use a little X diagram to work mixture problems like this. The constituent concentrations are on the left; the desired mix is in the middle, and the right legs of the X show the differences along the diagonal. These are the ratio numbers for the constituents. Reducing the ratio 32:8 gives 4:1, which totals 5 "ratio units". We need a total of 100 kg of alloy, so each "ratio unit" stands for 100 kg/5 = 20 kg of constituent.

That is, we need 80 kg of 60% alloy and 20 kg of 20% alloy for the product.

_____

<em>Using an equation</em>

If you want to write an equation for the amount of contributing alloy, it works best to let a variable represent the quantity of the highest-concentration contributor, the 60% alloy. Using x for the quantity of that (in kg), the amount of copper in the final alloy is ...

... 0.60x + 0.20(100 -x) = 0.52·100

... 0.40x = 32 . . . . . . . . . . .collect terms, subtract 20

... x = 32/0.40 = 80 . . . . . kg of 60% alloy

... (100 -80) = 20 . . . . . . . .kg of 20% alloy

6 0
3 years ago
How do i prove this?
Radda [10]

you first have to simfly in the partithies always then solve and prove done!

4 0
3 years ago
Hello, help me please with explanation)
svet-max [94.6K]

Answer:

t^v=w

Step-by-step explanation:

if y=b^x then x=logbY

b= base

for example:

log2(8)=3

2^3=8

8 0
2 years ago
Pls help me pls pls​
V125BC [204]

Answer:

B

Step-by-step explanation:

the slope of parallel lines are equal

7 0
3 years ago
Read 2 more answers
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