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Lunna [17]
3 years ago
11

What is the answer for 10.3(3)+9.5(4)=? +38.0

Mathematics
1 answer:
Vikki [24]3 years ago
4 0

multiply and add then subtract. steps are in the picture.

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An item is regularly priced at $80. Juan bought It at a discount of 20% off the regular price. How much did Juan pay?
Gnesinka [82]
Hello there! So, the item has a 20% discount, but Juan still had to pay 80% for the item. To find the amount he paid, all you have to do is multiply the price by the percentage. We multiply by 80%, because he still had to pay the portion of the price. 80 * 80% (0.8) is 64. The. Juan paid $64.
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Which movie should I watch?? sorry I'm bored......
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Step-by-step explanation:

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PLEASE HELP VENN DIAGRAM!
algol13

Answer:

Yes.

Step-by-step explanation:

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4 0
2 years ago
For which of the following equations are x = 5 and x = –5 both solutions?
Minchanka [31]
Short Answer B
Argument
A
A will give you x = +/- 5i 
x^2 + 25 = 0
x^2 = - 25       Take the square root.
sqrt(x^2) = +/- sqrt(-25)
x = +/- (5)i which is a complex number.


B
Is the answer
x^2 = 25
sqrt(x)^2 = sqrt(25)
x = +/- 5

C
Can't be factored just by looking at it. You can show that C is not true just by putting 5 into the equation
f(x) = x^2 + 10x - 25
f(5) = 25 + 10*5 - 25
f(5) = 50
C is not true.

D
D can be eliminated as C was
f(x) = x^2 - 5x - 25
f(5) = -25 ( l'll let you show this is not true). 5 is not a solution because it does not make f(x) = 0
6 0
3 years ago
Read 2 more answers
If the original quantity is 15 and the new quantity is 19, estimate the percent change.
Eddi Din [679]

15 to 19 was about a 27% in increase

3 0
2 years ago
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