2 years ago

If $16 is 80% of the money I have in my wallet, how much do I have in total?

Mathematics

2 answers:

Bond [772]2 years ago

4 0

Answer:

it would be 20 dollars or 2 dollars

Step-by-step explanation:

pychu [463]2 years ago

3 0

Answer:

$20

Step-by-step explanation:

to check

16/20

divide

= .80

times 100

80%

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<img src="https://tex.z-dn.net/?f=15%20x%5E%7B2%7D%20%2B14x-49%3D0" id="TexFormula1" title="15 x^{2} +14x-49=0" alt="15 x^{2} +1

Alex777 [14]

$15x^2+14x-49=0\\\\
Terms:\\
a=15\ \ \ \ b=14\ \ \ \ c=-49\\
Quadratic\ Formula:\\\\
x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\
x=\dfrac{-14\pm\sqrt{196+2,940}}{30}\\\\
x=\dfrac{-14\pm\sqrt{3,136}}{30}\\\\
x=\dfrac{-14\pm56}{30}$

$Roots:\\\\
x'=\dfrac{-14+56}{30}\\\\
x'=\dfrac{42}{30}\\\\
x'=\dfrac{21}{15}\\\\
\boxed{x'=\dfrac{7}{5}}\\\\\\\\
x''=\dfrac{-14-56}{30}\\\\
x''=\dfrac{-70}{30}\\\\
\boxed{x''=\dfrac{-7}{3}}$

8 0

3 years ago

Read 2 more answers

HELP ME PLZ

larisa86 [58]

I believe it’s 9:11

6 0

3 years ago

Which of the following could be the measure of a pair of consecutive angles of a rhombus?

LiRa [457]

Your answer would be A. 122° and 58° because both angles have to equal 180°

4 0