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inessss [21]
3 years ago
11

Wich is a step in the process of calculating successive discounts of 8% and 10% on a 50 dollar item

Mathematics
1 answer:
Otrada [13]3 years ago
8 0
Do 50 x .8% to go the discount for 8& also do 50 x 10% to go the discount for 10%
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Out of 30 questions, Ahmad answer 12 of them incorrectly. What percent of the questions did he answer correctly?
kati45 [8]
First, you would need to determine how many questions he got correct. 
30 - 12 = 18

Next, you would need to create an equation for this problem. Let x represent the unknown percentage. 
\frac{18}{30} = \frac{x}{100}

Now, you would cross multiply. 
30x = 1,800

The last step would be to isolate the x. To do this, you would divide both sides of the equal sign by 30. 
x = 60

Ahmad got 60% of the questions correct. 

I hope this helps!
7 0
3 years ago
Write an equation in which the quadratic expression 3x^2+6x-24 equals 0. Show the expression in factored form and explain what y
mr_godi [17]

Answer:

3x² + 6x - 24 = 0

(3x - 6)(x + 4) = 0

x = -4 , x = 2 when y = 0

Step-by-step explanation:

3x² + 6x - 24 = 0

(3x - 6)(x + 4) = 0

Means

3x - 6 = 0 ⇒ 3x = 6 ⇒ x = 6 ÷ 3 = 2

x + 4 = 0 ⇒ x = -4

The Parabola which represents the quadratic equation intersects x-axis at

points (2 , 0) and (-4 , 0)

5 0
3 years ago
Which equation has a variable Isolated? (PUT NO SPACES WHEN TYPING THE EQUATION y=4x and 3x+2y=55​
andrew11 [14]

Answer:

X is five, 100% :D

Step-by-step explanation:

5 0
2 years ago
I need help solving it
blagie [28]
X2-64=0
x2=64

x=8 because when multiplied by itself, and plugged back in, it works
8 0
3 years ago
Read 2 more answers
What is .007 as a fraction simplified
8090 [49]

Answer:

7/1000

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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