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Dmitriy789 [7]
3 years ago
14

three snack bars contain 1/5,0.22,and 19% of their calories from fat. which snack bar contains the least amount of calories from

fat ?
Mathematics
2 answers:
podryga [215]3 years ago
7 1
19% becuze .22 is 22% and 1/5 is 20%
forsale [732]3 years ago
3 0

Answer:

The answer is 19%

Step-by-step explanation:

In order to determine the snack bar with lowest calories from fat, we have to express the three values in a same notation way.

First value is expressed in <em>fraction</em>, second one in <em>decimal </em>and the last one in <em>percentage</em>.

<u>Which one is the easiest way? </u>The easiest way is in percentage notation because we only have to multiply the value by 100.

So, the values \frac{1}{5} and 0.22 will be multiplying by 100. The last value is already in percentage notation.

Then:

\frac{1}{5}*100=20 %

0.22*100=22 %

19 %

Finally, the snack bar, that it contains the least amount of calories from fat, is the last one with 19%.

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The total cost for 9 bracelets, including shipping was $72. The shipping charge was $9. Define your variable and write an equati
stepladder [879]

Answer:

a) Equation: 9x+9 = 72

b) x =7

Step-by-step explanation:

The total cost of 9 bracelets = $72

Shipping charge = $9

a) Define your variable and write an equation that models the cost of each bracelet.

Let x be the cost of one bracelet, the equation will be

9x + 9 = 72

As 9 bracelets were there and the shipping cost was 9 and total cost was 72.

b) Use the equation you have written above determine the cost for each bracelet. Show the algebraic steps that it takes to find the answer.

Now solving the equation to find the value of x that represent cost of each bracelet

9x + 9 = 72

Adding -9 on both sides

9x +9 -9 = 72 -9

9x = 63

Dividing both sides by 9

9x/9 = 63/9

x = 7

The value of x=7 so, the cost of each bracelet is $7

c) Provide your conclusion.

So, each bracelet was of cost $7 and $9 was the shipping charge. so, the total cost is $72.

We would check whether our equation is satisfied.

9x+ 9 = 72

9(7) + 9 = 72

63 + 9 = 72

72 = 72

The equation is satisfied.

4 0
3 years ago
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Step-by-step explanation:

3x^2 -23x + 40 = (3x - 8) (x - 5)

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Answer:

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