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2 years ago

5

Solving quadratic equations using the quadratic formula.

1 answer:

mixer [17]2 years ago

8 0

Answer:

what is there supposed to be a picture

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Estimate sum 542+328=

Ghella [55]

542 --> 500

328 --> 300

Estimate: 800

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3 years ago

I need help with them Please some one help

Aleksandr [31]

8 / 32 x 100 = 25%
answer: 25% students went on a trip

30/60 x 100 = 50%
answer: he spent 50% of his money

40 - 10 = 30 candies after gave away 10

10/40 x 100 = 25%
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book 300 pages
she read 75 pages
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answer: she read 25% of the book

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3 years ago

What is the answer to 3/x=-3/3x+5

Aleonysh [2.5K]

Answer:

$-\frac{5}{4} =x$

Step-by-step explanation:

We first need to bring x up into the numerator. I will find common denominators by multiplying both sides by each denominator.

$\frac{x(3x+5)}{1} *\frac{3}{x} =\frac{-3}{3x+5}*\frac{x(3x+5)}{1}$

This will eliminate both denominators and leave me with

$(3x+5)3=-3(x)\\9x+15=-3x$ after I simplify the parenthesis.

Now I will solve the equation for x by subtracting 9x from both sides.

$9x-9x+15=-3x-9x\\15=-12x$

Then divide by the coefficient of x.

$\frac{15}{-12}=\frac{-12x}{-12}$

$-\frac{5}{4} =x$

7 0

3 years ago

Can u please help me please. Please

jonny [76]

The answer is
C = 4 ÷ 1/5

6 0

3 years ago

A group of 8 friends go to the movies. A bag of popcorn costs $2.99. How much will it cost to get one bag of popcorn for each fr

Akimi4 [234]

Answer:

23.92

Step-by-step explanation:

You can round 2.99 to 3 and do 3x8 mentally then subtract 8 cents ¯\_(ツ)_/¯

7 0

2 years ago

Read 2 more answers