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natima [27]
2 years ago
14

Select the number property that will justify the step in the following expression. 2(5 • 17) = (2 • 5) 17 = 10 • 17 = 170

Mathematics
1 answer:
Andreyy892 years ago
4 0

The number property that will justify the step in the following expression. 2(5 • 17) = (2 • 5) 17 = 10 • 17 = 170 is; Associative Property

<h3>What is the Number Property that was used?</h3>

The associative property is a math rule that says that the way in which factors are grouped in a multiplication problem does not change the product.

Now, this associative property is used here because we see that;

2(5 • 17) = (2 • 5) 17

In both left and right hand sides we see that despite the change in order, the result remains the same.

Read more about Number Property at; brainly.com/question/24792133

#SPJ1

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A year ago, Leila wanted to buy a necklace that cost $25.00. This year the same necklace cost $30.00. What was the percent incre
Delicious77 [7]

Answer:

20 %

Step-by-step explanation:

% Increase = Increase/Original value × 100 %

Data:

 Original = $25

This year = $30

Calculations:

   Increase =  This year - original

                  =         30       -      25

                  =                   $5

% Increase = 5/25 × 100 %

                  = 20 %

The percent increase of the price of the necklace was 20 %.

4 0
3 years ago
25 × 13 = __________ twenty-fives. 49 × 11 = __________ elevens.
andreyandreev [35.5K]

Answer:

I hope this helps. I don't quite know what you're looking for.

Step-by-step explanation:

25 x 13 = 325

325 divided by 25

= 13 twenty fifths.

49 x 11 = 539

539 divided by 11

= 49 elevenths

8 0
2 years ago
Write a ratio comparing the amount of palm kernel oil 66 grams to rose hydrosol 110 grams write as a fraction then simplify
Basile [38]
\frac{66}{110}=\frac{3}{5}


7 0
3 years ago
Explain why the graphing calculator cannot be used to solve or approximate solutions to all polynomial equations.
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4 0
3 years ago
Read 2 more answers
A shipment of 50 inexpensive digital​ watches, including 10 that are​ defective, is sent to a department store. The receiving de
ddd [48]

Answer: 0.8926

Step-by-step explanation:

Given : A shipment of 50 inexpensive digital​ watches, including 10 that are​ defective.

The probability that a digital​ watch is defective : p=\dfrac{10}{50}=0.2

Sample size : n=10

Also, they reject the whole shipment if 1 or more in the sample are found defective.

Using the binomial probability formula :

P(x)=^nC_xp^x(1-p)^{n-x}

Let x be the random variable that represents the number of defective watches.

The probability that the shipment will be​ rejected :-

P(x\geq1)=1-P(0)\\\\=1-^{10}C_0(0.2)^0(0.8)^{10}\\\\=1-(0.8)^{10}=0.8926258176\approx0.8926

Hence, the probability that the shipment will be​ rejected = 0.8926

6 0
3 years ago
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