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Anni [7]
3 years ago
8

What is 40% of $20? Show your work.

Mathematics
2 answers:
bekas [8.4K]3 years ago
8 0

Answer:Thus, a product that normally costs $20 with a 40 percent discount will cost you $12.00, and you saved $8.00. You can also calculate how much you save by simply moving the period in 40.00 percent two spaces to the left, and then multiply the result by $20 as follows: $20 x . 40 = $8.00 savings.

Step-by-step explanation:

Ket [755]3 years ago
3 0

Answer:

$8

Step-by-step explanation:

0.4 times 20 equals 0.8

times by 10  =8

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-0.113 blank =0.452x + 0.452
nataly862011 [7]

Answer:

a=-4

b=-4

Step-by-step explanation:

-0.113 blank =0.452x + 0.452

-0.113(a+bx) =0.452x + 0.452

-0.113a-0.113bx  =0.452x + 0.452

so we have

-0.113a=0.452

a=-0.4520/0.113= -4

-0.113bx  =0.452x

b=-0.452/0.113= -4

8 0
3 years ago
Find the equation of the line that is perpendicular to y = -2/3x and contains the point (4, -8)
Mashutka [201]

i dont get it plz explan

4 0
3 years ago
hi so i have no idea what combining like terms means, or how to do it. can someone help explain, with examples?
Marina CMI [18]

Answer:

Combining like terms is a mathematical process used to simplify an expression or to add or subtract polynomials.

Step-by-step explanation:

How do I combine like terms?

1. Step 2: Combine the coefficients.

2. 5h + 11g + 1h - 8g.

3. (5 + 1)h + (11 - 8)g.

4. 6h + 3g.

5. Step 1: Organize your like terms.

6. 5x + 8x + 10x2 - 7x2 - 4x.

7. Step 2: Combine the coefficients. (5 + 8 - 4)x + (10 - 7)x2 9x + 3x2

3 0
3 years ago
Read 2 more answers
A sequence is defined by the recursive function f(n 1) = f(n) – 2.if f(1) = 10, what is f(3)?16830
iogann1982 [59]
Hello,

f(n+1)=f(n)-2
f(1)=10
f(2)=8
f(3)=6
...
5 0
3 years ago
Read 2 more answers
A and B are two events.
Vesna [10]
In order to determine if the events are independent or not we need to find the conditional probabilities.

The conditional probability of event A, given event B is denoted as P(A|B)

P(A|B)= \frac{P(A*B)}{P(B)}

P(A*B) indicates P(A and B)

Using the values, we get:

P(A|B)= \frac{0.28}{0.8}=0.35

Since P(A|B) is not equal to P(A) this indicates that occurrence of event B has an impact on the occurrence of event A. This shows that the two events are dependent.

Therefore, the correct option is the second one.
2. A and B are not independent events because P(A∣∣B)≠P(A)
5 0
3 years ago
Read 2 more answers
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