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sergiy2304 [10]
3 years ago
11

Help with question 3

Mathematics
1 answer:
lys-0071 [83]3 years ago
7 0
What are the questions??
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A radio is being discounted 20% if the sale price of the radio is $51.44 what is the original price of the radio Radio is being
Grace [21]
Original price of the radio is $64.30

Sale price - $51.44
Discount rate - 20%

This means that $51.44 is the discounted price or is equivalent to 80% of the original price, since the 20% equivalent is deducted from the original price.

To get the original price, divide $51.44 by its corresponding percentage, 80%.

$51.44 / 80% = $64.30

To get the discount, multiply the original price by its discount rate

$64.30 x 20% = $12.86

To get the sales price, deduct the discount from the original price.

$64.30 - $12.86 = $51.44
100% - 20% = 80%

6 0
3 years ago
There are 3 seventh-grade boys, 4 seventh-grade girls, 5 eighth-grade boys, and 8 eighth-
AURORKA [14]

Answer:

the answer would be 2/5

Step-by-step explanation:

you add up all of the boys to get 8

there are, in total 20 students that can be chosen, so there is an 8/20 chance that it would be a boy, simplified that is 2/5

8 0
3 years ago
Simplify radical -81
Solnce55 [7]

Step-by-step explanation:

-81

\sqrt{ - 1}  \:  \times  \sqrt{81}

\sqrt{ - 1}  = i

i \times  \sqrt{9 {}^{2} }

i \times 9

9i

5 0
3 years ago
HELP PLS BRAINLIEST IF POSSIBBLE<br> factor each polynomial completely a^2-ab-8a+8a brainly
sineoko [7]

Answer:

a(a - b)

Step-by-step explanation:

<u>given </u><u>polynomial</u>:  a²- ab - 8a + 8a

We can first simplify this answer by removing like terms,

- 8a + 8a = 0

so we have a²- ab in. the simplest form

we can take this one step further and factor out the a (not simplest form)

a time a = a²

a times b = ab

hence, a(a - b)

Learn more about Factoring here: brainly.com/question/18032923

7 0
2 years ago
List the values that make up the domain of this relation.
balandron [24]

\bf (\stackrel{\downarrow }{5},3),(\stackrel{\downarrow }{2},-7),(\stackrel{\downarrow }{1},-8),(\stackrel{\downarrow }{8},3)\qquad \quad \stackrel{\textit{the domain is always the set of the 1st coordinate}}{(5,2,1,8)}

6 0
3 years ago
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