**Which of the following is the equivalence in kg for 220 lb? (2.2 lb =1 kg)**

110 kg

2.20 kg

50 kg

100 kg

*Correct Answer : D*

We two conversions when asked to convert between kg and lb

And

We need kg equivalent of 220 lb, therefore we use option 1 and carry out the conversions as follows:

Thus, 100kg is equal to 220lb.

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Related Questions

### Correct Answer is B

#### Explanation

The initial step is to convert the decimal numbers into fractions.

5.2 becomes 52/10

5.15 becomes 515/100

Next, find the least common denominator of 3, 10, and 100, which is 300. We use this value and multiply each fraction.

7/3*300=700

52/10*300=1560

13/3*300=1300

515/100*300=1545

From the above, 1560 is the greatest value which corresponds to 52/10. Thus, 5.2 is the greatest value of all the choices given.

### Correct Answer is B

#### Explanation

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The first step is to find the radius, r of the circle as

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### Correct Answer is C

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In this problem, we need to find the amount of gratuity the couple will leave. The gratuity is 16% of the total bill. Before solving the problem, the following are terms and their meaning in percent problems:

- Is means equals
- Of means multiply
- What means unknown (variable)

If we let x be the amount of gratuity, then translating the given problem into a mathematical equation becomes:

Now we evaluate the above equation noting that of means multiply.

So, the value of x=9.376 and to the nearest cent, x=9.38

There, a couple will leave a gratuity of $9.38.

### Correct Answer is D

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### Correct Answer is A

#### Explanation

An independent variable is a change that when modified brings a change in other variables. In this case, the person increases his climbing rate, calories burned, distance traveled and energy used increases. Therefore, the walking speed is the independent variable while other variables are dependent.

### Correct Answer is D

#### Explanation

We use the order of operation to solve for the unknown value of x.

3(3x+3)=8x+5

Multiply 3 with each number in the brackets

(3*3x)+(3*3)=8x+5

9x+9=8x+5

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9x+9-9=8x+5-9

9x=8x-4

Subtract 8x on both sides

9x-8x=8x-8x-4

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Thus, the unknown value of x is -4.

### Correct Answer is D

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We multiply 7/8 by 100 to convert it to percent. You convert fraction to percent.

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### Correct Answer is C

#### Explanation

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### Correct Answer is C

#### Explanation

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So, in 6 minutes, the athlete covers 1 mile.

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