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DIA [1.3K]
3 years ago
14

Please help me with these 2 answers!

Mathematics
2 answers:
fgiga [73]3 years ago
4 0
7 is 71+7/3+78
8 is 60x2x2
snow_lady [41]3 years ago
3 0

Answer:

Answer 1: b. $104

Answer 2: b. $240

Step-by-step explanation:

Answer 1 explanation : Because he ended up with $71.00, the is no way he earned $64 or $13. He spent $7 on snacks, which means he would have had $78 then. But, he spent 1/4 of his money on the movie (not the snacks) so that means he would have more than $78 dollars to start with.  

Answer 2 explanation: Because Jani spent half of her money on her bicycle, then and another half on a stereo set. That means she spent 1/4 of her money. Multiply 60 x 4, then you'll get 240.


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An item is regularly priced at $80 . Sam bought it at a discount of 60% off the regular price. How much did Sam pay?
Neporo4naja [7]

Answer:

$32.00

Step-by-step explanation:

$80 - 60% = $32.00

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4 0
3 years ago
a population of 430 animals decreases at an annual rate of 21% find the multiplier for the rate of exponential decay
Inga [223]
If the population of the animals decreases by about 21% of its current population, it means that the population next year is only 1 - 0.21 or 0.79 of its current population. Thus, the multiplier for the rate of the exponential decay is 0.79. 
8 0
3 years ago
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What is the scale factor of a triangle with a vertex of A(–6, 4) that has been dilated with a center of dilation at the origin s
Aliun [14]
A(-6,4)=(xa,ya)→xa=-6, ya=4
A'(-24,16)=(xa',ya')→xa'=-24, ya'=16
Scale factor: f 

xa'=f*xa→-24=f*(-6)
Solving for f:
-24/(-6)=f*(-6)/(-6)
4=f
f=4

or:
ya'=f*ya→16=f*4
Solving for f:
16/4=f*4/4
4=f
f=4

Answer: The scale factor of the triangle is 4
4 0
3 years ago
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If f(x) = x/(2x - 1) and and g(x) = (x + 1)/(- x) then find g(f(x)) and state the domain of this composition function .
IgorC [24]

Step-by-step explanation:

First thing to do is insert f(x) in for x in g(x) to make g(f(x))

g(f(x)) =  (\frac{x}{2x - 1}  + 1) \div ( -  \frac{x}{2x - 1} )

f(x) is in the domain of g(x) which create the composition function.

7 0
3 years ago
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timurjin [86]

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Step-by-step explanation: Chlorine is an element with atomic number 17 and thus contains 17 electrons. Valence electrons are the electrons which are present in the valence shell.

Electronic configuration of chlorine:

Cl:17=1s^22s^22p^63s^23p^5

Chlorine atom has 7 valence electrons (2 in 3s and 5 in 3p orbital) and thus need to share one electron with other chlorine atom to complete its octet and attain stability.

6 0
3 years ago
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