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dem82 [27]
3 years ago
14

1.2.71

Mathematics
1 answer:
egoroff_w [7]3 years ago
6 0

Answer:

Step-by-step explanation:

Set up an equation, where x is the number of gallons of 60% antifreeze solution.

Represent the percentages of antifreeze with decimal values.

0.6x + 0.3(80) = 0.5(x + 80)

Simplify and solve for x:

0.6x + 24 = 0.5x + 40

0.1x = 16

x = 160

So, you have to mix 160 gallons of a 60% antifreeze solution

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Which of the following equations could be used to solve for x in the triangle shown? tan48°=10/x
galben [10]
Acronym to remember the 3 basic trigonomic functions: 

Soh - Cah - Toa 

             opposite
sin = --------------------
            hypotenuse

              adjacent 
cos = -------------------
             hypotenuse

             opposite 
tan =  -----------------
             adjacent 


In your case, you can set up a sine trigonomic function, like this: 

Sin 48 = 10      (adjacent)
               -----  
                 x       (hypotenuse)

                       10
 (x) Sin 48 = ------ (x)
                         x

  (x) Sin 48 = 10 
 --------------   ------------- 
  Sin 48         Sin 48 

Plug in 10(sin)(48) into a calculator.

x = 7.43


I just realized that you didn't ask me to find the answer, but now you will know even more than you need to :D

4 0
3 years ago
Meg is a veterinarian. In a given week, 50% of
neonofarm [45]
Meg would be a to be correct
7 0
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0.5(-10 + k) I did help asp
lana66690 [7]

use distributive property

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7 0
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Read 2 more answers
Ari thinks the perfect milkshake has 3 ounces of caramel for every 5
tangare [24]

Answer:

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Step-by-step explanation:

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6 oz caramel for 8 scoops of ice cream is the same ratio as

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Since Ari likes 3 oz caramel for 5 scoops ice cream,

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8 0
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2(3x−5a)+9(2a−7b)+3(5a−2x)=0
alexdok [17]

Answer:

a=63b/23, b=23a/63

7 0
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