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Vika [28.1K]
3 years ago
11

Kelly subtracted 2.3 from 20 and got 17.7. explain why this answer is reasonable

Mathematics
1 answer:
Serga [27]3 years ago
3 0
20-2.3=17.7 what don't you understand? 

<span>20-2= 18 </span>

<span>18-.3=17.7
</span><span>its reasonable because if you do the calculation, 17.7 is the answer
</span>HOPE HELPED:D
this is 5th grade,lol

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melomori [17]

First: markup rate × wholesale price = amount of markup

Second: Well the markup rate is a percentage, you have to convert it into a decimal. Percent means "out of one hundred," so <span>80%</span> is equivalent to <span>80/100 </span>which is also equal to <span>80÷100</span>.

<span>Third: 80÷100=0.80</span>

0.80 × $93.00 = $74.40

Fourth: The markup rate is a percentage of the wholesale price that is added to get the retail price, you can find the retail price with the following equation: amount of markup + wholesale price = retail price

<span>$74.40</span> + <span>$93.00</span> = <span>$167.40</span>

The retail price of the chair should be <span>$167.40</span>.

7 0
4 years ago
Factor completely 5ax2 − 20x3 2a − 8x. (a 4x)(5x2 2) (a 4x)(5x2 − 2) (a − 4x)(5x2 2) (a − 4x)(5x2 − 2).
antiseptic1488 [7]

The complete factor of the polynomial 5ax² − 20x³ + 2a − 8x is (5x² + 2) (y − 4x). Then the correct option is C.

<h3>What is polynomial?</h3>

Polynomial is an algebraic expression that consists of variables and coefficients. Variable are called unknown. We can apply arithmetic operations such as addition, subtraction, etc. But not divisible by variable.

Factor completely 5ax² − 20x³ + 2a − 8x.

Take 5x² common from the first two terms and 2 from the last two terms. we have

5ax² − 20x³ + 2a − 8x

5x²(a − 4x) + 2 (a − 4x)

Take (a - 4) common, then we have

(5x² + 2) (y − 4x)

The complete factor of the polynomial 5ax² − 20x³ + 2a − 8x is (5x² + 2) (y − 4x). Then the correct option is C.

More about the polynomial link is given below.

brainly.com/question/17822016

8 0
2 years ago
IF the sum of four times a number and four less than three times a number is seventeen what is the number
Virty [35]

Answer: 3

Step-by-step explanation: This equation can be written as 4x+3x-4=17

We can now solve.

Moving the 4 to the other side (adding) and we get 21.

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X = 3.

3 0
2 years ago
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Andrei [34K]

Answer:

The element is Boron(B)

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5 0
3 years ago
Solve for d <br> d + 8 &lt; 35
9966 [12]

Answer:

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Step-by-step explanation:

Solve for d by subtracting 8 from both sides.  This isolates d:

d + 8 < 35

   -8      -8

-------    -------

  d    <   27

5 0
3 years ago
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