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eimsori [14]
3 years ago
10

Show how to solve this two step problem. My item is 40% off. The original price is X. Explain the two one step equations you wou

ld use to solve this (to find the sales price). a. Now, I figured out that the original cost was $145, what is the real sales price?
Mathematics
1 answer:
fredd [130]3 years ago
4 0
40% of (times) X
4/10 of (times) X or 2/5 or .4
145 (times) .4 which is 58
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17 = 9 + 2r<br><br> r = what
Simora [160]

Answer:

r = 4

Step-by-step explanation:

17 = 9 + 2r   subtract both sides by 9

8 = 2r          divide both sides by 2

4 = r

7 0
3 years ago
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A x 4 = E
lana [24]
A * 4 = E........A = E / 4
B / 4 = E........B = 4E
C + 4 = E......C = E - 4
D - 4 = E.......D = E + 4

A + B + C + D = 100
(E/4) + (4E) + (E - 4) + (E + 4) = 100
E/4 + 6E = 100 ....multiply by 4
E + 24E = 400
25E = 400
E = 400/25
E = 16 <===


7 0
3 years ago
PLEASE HELP! i have a couple minutes left
swat32

Answer:

1.8

Step-by-step explanation:

slope formula: (y2-y1)/(x2-x1)

(86-32)/(30-0)

54/30

1.8

8 0
4 years ago
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The radius of the hydrogen atom is 0.529x10/-10 and the radius of the nucleus is 1.2x10/-15m. Compare the radius of each by writ
raketka [301]

we know that

The radius of the hydrogen atom is  0.529*10^{-10}m

The radius of the nucleus is  1.2*10^{-15}m

the ratio is equal to

\frac{0.529*10^{-10}}{ 1.2*10^{-15}} = 44,083.33

that means the radius of the hydrogen atom is 44,083.33 times the radius of the nucleus

therefore

<u>the answer is</u>

the ratio is equal to 44,083.33

7 0
3 years ago
Isabel has ridden 16 miles of a bike course. The course is 80 miles long. What percentage of the course has Isabel ridden so far
OlgaM077 [116]

Answer:

20%

Step-by-step explanation:

Divide 16 by 80 and you get 0.2 as an answer and to get a percent you move the decimal 2 places to the right to fet 20%

7 0
3 years ago
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