Can someone help me please ASAP PLEASE PLEASEEEEEE

Mathematics

2 answers:

malfutka [58]3 years ago

7 0

S = standard
h = high quality

$\left \{ {{s + h = 840} \atop {2.7s + 4.4h = 2846}} \right.$

s + h = 840Subtract s from both sides.
h = -s + 840

Input h to the other equation.

2.7s + 4.4(-s + 840) = 2846
2.7s + -4.4s + 3696 = 2846
Subtract 3696 from both sides.
-1.7s = -850
Divide both sides by -1.7
s = 500

h = -500 + 840
h = 340

There were 500 downloads of the standard form

Andrews [41]3 years ago

3 0

Make 2 equations one for the total downloads and the other for total size
Let x = number of standard downloads and y = number of quality downloads.

x + y = 840
2.7x + 4.4y = 2846

from first equation y = 840 -x Now plug this into the second equation:_

2.7x + 4.4(840 - x) = 2846

-1.7x = -850

x = 500 Number of standard versions downloaded = 500 Answer

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Read 2 more answers

According to the rational root theorem, what are all the potential rational roots of f(x)=5x^3-7x+11

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$\pm11,\pm1,\pm\frac{11}{5},\pm\frac{1}{5}$

Step-by-step explanation:

The given polynomial function is

$f(x)=5x^3-7x+11$

According to the Rational Roots Theorem, the ratio of all factors of the constant term expressed over the factors of the leading coefficient.

The potential rational roots are

$\pm\frac{11}{1}=\pm11$