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Ivan
2 years ago
15

Both students made a mistake.

Mathematics
2 answers:
sweet-ann [11.9K]2 years ago
8 0

Answer:

Then the formula will help you find the roots of a quadratic equation, i.e. the values of x x xx ... First we need to identify the values for a, b, and c (the coefficients). ... Now you can also solve a quadratic equation through factoring, completing the square, ... Let's first get it into the form where all terms are on the left-hand side:.Step-by-step explanation:

Licemer1 [7]2 years ago
7 0

Answer:

true answer I'm search in Goole

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What is the area of the following circle?
Licemer1 [7]
U tell me cause idk
7 0
3 years ago
Help please i suck at this
kap26 [50]

Answer:

Mistake: -3-5=-2, -3-5=-8

Step-by-step explanation:

-3-(7x+5)+9x=-8+3x+10

-3-7x-5+9x=4x+2

-8+2x=4x+2

-8-2=4x-2x

-10=2x

-10/2=x

-5=x

5 0
2 years ago
A chemist wishes to mix a 30% acid solution with a 65% acid solution to obtain 175 quarts of 55% acid solution . How many quarts
Eva8 [605]

x = quarts of 30% acid solution

y = quarts of 65% solution

x + y = 175

Each quart of the 30% solution contributes 0.30x quarts of acid; similarly, each quart of the 65% solution contributes 0.65y quarts of acid. So

0.3x + 0.65y = 0.55*175 = 96.25

That is, the chemist wants 175 quarts of a new mixture with a 55% concentration of acid, which comes out to 95.25 total quarts of acid. The total amounts of acid from either sides of this equation must balance out.

Now solve for x and y:

x + y = 175  ==>  y = 175 - x

0.3x + 0.65y = 96.25  ==>  0.3x + 0.65(175 - x) = 96.25

==>  0.3x + 113.75 - 0.65x = 96.25

==>  17.5 = 0.35x

==>  x = 50  ==>  y = 125

7 0
2 years ago
A fish tank has 150 gallons of water and is being drained at a rate of 12 gallon each second. A second fish tank has 120 gallons
Artyom0805 [142]

Answer:

Just start with 14 and go up and then start at 150 and go down by 12 until they meet

7 0
2 years ago
Read 2 more answers
If Michelle had 5 cups of water 4 cups sugar and 3 cups of powdered lemonade what is the fraction of powdered lemonade
m_a_m_a [10]
I think it would be 2/3 maybe
4 0
3 years ago
Read 2 more answers
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