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pychu [463]
3 years ago
12

1. A radio cost $20, Harold buys it for $12, what percent off the original price did he receive?

Mathematics
2 answers:
Dima020 [189]3 years ago
7 0
1. 20•.4=8 so 40%
2. 20%
forsale [732]3 years ago
4 0
1. you put it in a fraction: 12/20 on a calculator and you get 60%
2. 20%
3. 12%
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Tyler says he invented a number puzzle.
maksim [4K]

Answer:

Read this section of the text:

These raptors eat primarily flying insects, so they do most of their hunting on the wing.

What does primarily mean in this sentence?

Step-by-step explanation:

4 0
3 years ago
In a contest to guess the number of jelly beans in a jar, Alice guessed 25;Betty, 18;Clare,23;Dotty,19;Edith,24;and Fran,17. Two
vampirchik [111]

Answer:

<em>There are 21 jelly beans in the jar.</em>

Step-by-step explanation:

Suppose, the number of jelly beans in the jar is  x

Two were off by 2, two were off by 3, two were off by 4. That means, the six guessed number will be:  (x+2), (x-2), (x+3), (x-3), (x+4), (x-4)

Given that, Alice guessed 25; Betty, 18; Clare, 23; Dotty, 19; Edith, 24; and Fran, 17.

So, the sum of all six guessed number will be:  25+18+23+19+24+17=126

Thus, the equation will be..........

(x+2)+(x-2)+(x+3)+(x-3)+(x+4)+(x-4)= 126\\ \\ 6x= 126\\ \\ x=\frac{126}{6}=21

So, the number of jelly beans in the jar is 21.


5 0
3 years ago
Draw a number line to show 1/4 and 4/16 are equivalent
tiny-mole [99]
|____|____|____|____|____|____|____|____|
0    1/16  2/16  3/16  4/16  5/16  6/16  7/16  8/16  
| _________________| _________________|
0                                1/4                               2/4
7 0
3 years ago
Read 2 more answers
Which of the following is the product of the rational expressions shown below?
Anarel [89]

Answer:

D

Step-by-step explanation:

A P E X

7 0
3 years ago
The equation for the cost in dollars of producing automobile tires is c = 0.000015x2 - 0.03x + 35, where x is the number of tire
statuscvo [17]
The cost function is
c = 0.000015x² - 0.03x + 35
where x = number of tires.

To find the value of x that minimizes cost, the derivative of c with respect to x should be zero. Therefore
0.000015*2x - 0.03 = 0
0.00003x = 0.03
x = 1000

Note:
The second derivative of c with respect to x is positive (= 0.00003), so the value for x will yield the minimum value.

The minimum cost is
Cmin = 0.000015*1000² - 0.03*1000 + 35
          = 20

Answer:
Number of tires = 1000
Minimum cost = 20
3 0
3 years ago
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