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Alchen [17]
3 years ago
7

llean works as a welder in web designer as a welder she earns $18 per hour last week she works x hours as a wlder and her Fran p

aid her $75 to design a webpage.write an expression to represent the total amount llean earned last week
Mathematics
1 answer:
melamori03 [73]3 years ago
5 0
18 times x = $75

I wasn’t able to find the multiplication sign on my keyboard and didn’t want to confuse you so I replaced x with times
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Joey has a full 40 coins consisting of only quarters and nickels if the total value is $5.00 how many of each does joey have.
Archy [21]
Q + n = 40....q = 40 - n
0.25q + 0.05n = 5

0.25(40 - n) + 0.05n = 5
10 - 0.25n + 0.05n = 5
-0.25n + 0.05n = 5 - 10
 - 0.20n = -5
n = -5 / -0.20
n = 25 <=== 25 nickels

q + n = 40
q + 25 = 40
q = 40 - 25
q = 15 <== 15 quarters
7 0
3 years ago
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Sadie has a blue ribbon and a red ribbon. The blue ribbon is 12 inches long. The blue ribbon is 3 times longer than the red ribb
yanalaym [24]
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7 0
3 years ago
Solve the equation
Vikki [24]

Answer:

x ≈ - 5.32, x ≈ 1.32

Step-by-step explanation:

Given

x² + 4x - 7 = 0 ( add 7 to both sides )

x² + 4x = 7

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(2)x + 4 = 7 + 4

(x + 2)² = 11 ( take the square root of both sides )

x + 2 = ± \sqrt{11} ( subtract 2 from both sides )

x = - 2 ± \sqrt{11}

Thus

x = - 2 - \sqrt{11} ≈ - 5.32 ( to 2 dec. places )

x = - 2 + \sqrt{11} ≈ 1.32 ( to 2 dec. places )

4 0
3 years ago
40 pounds of cashews costing $9.20 per pound were mixed with 100 1b of peanuts costing $3.32 per pound. Find the cost of the res
TEA [102]
It cost 12.52 cents all together
7 0
3 years ago
Write each percent as a decimal a 80% B 3% C 12.5% D 125%​
Tema [17]

Answer:

a .8

b .03

c .125

d 125.0

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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