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AleksAgata [21]
3 years ago
9

1. Paige was assigned some math problems for homework. She solved the first 32 of the problems before dinner. She finished the l

ast 20% of the assignment after dinner. How many math problems was Paige assigned?
A. 36
B. 38
C.40
D. 160
Mathematics
2 answers:
aev [14]3 years ago
6 0
32/x = 80/100 
32 x 100 = 80 x
3200/80 = x
40 = x
notsponge [240]3 years ago
5 0
I believe its B. 38.
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You know how a puppy is a kind of dog, but not all dogs are puppies? Well, the same thing is true for lots of other categories of things, including squares and rectangles.

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3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST
Evgesh-ka [11]
All you have to do is plug in the given values into the given equation and evaluate.

The expression is,

A(t) =  l{e}^{rt}
But we have to analyze the problem carefully. This is a natural phenomenon that can be modelled by a decay function. The reason is that, after every hour we expect the medicine in the blood to keep reducing.

Therefore we use the decay function rather. This is given by,


A(t) =  l{e}^{-rt}

where,

l = 100 \: milligrams

r =  \frac{14}{100}  = 0.14

and

t = 10 \: hours

On substitution, we obtain;

A(10) =  100 \times {e}^{ - 0.14 \times 10}


A(10) =  100 \times {e}^{ - 1.4}



Now, we take our calculators and look for the constant
e

,then type e raised to exponent of -1.4. If you are using a scientific or programmable calculator you will find this constant as a secondary function. Remember it is the base of the Natural logarithm.



If everything goes well, you should obtain;

A(10) =  100 \times 0.24659639


This implies that,


A(10) =  24.66

Therefore after 10 hours 24.66 mg of the medicine will still remain in the system.
3 0
3 years ago
Peljsjdhehehfhfuhfhfhf pls awnserrhrh
jok3333 [9.3K]

Hello there!

3.14 is rational. Hope this helps!

Why? Because pi is irrational, pi squared and the square root of pi is irratonal as well. Hope this helps you!

~Just an emotional teen

SilentNature

5 0
2 years ago
How to solve it the answer
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She gave away 8 apples because 13 minus 5 is 8
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Given f(x) = 7x^9, find f^-1 (x). Then state whether f^-1 (x) is a function
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A though without graphing software it would appear to be C


Step-by-step explanation:
The inverse of a function is the function reflected across the line y=x. This results in the coordinate points (x,y) of the function becoming (y,x) for the inverse function. Algebraically to find the inverse, switch the x and y locations and solve for y.
y = 7x^9
x = 7y^9
x/7 = y^9
(9)√(x/7) = y
This is a ninth root of (x/7) also written in exponents as y = (x/7)^(1/9).
This is a function. While it appears not to be a function because the middle portion over the origin appears vertical, it is a function because the middle portion over the origin is changing and graphing software shows it has no input with more than one output. Without graphing software you would rule it is not a function.
7 0
3 years ago
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