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zalisa [80]
3 years ago
13

What is negative 6k plus 7k

Mathematics
2 answers:
Juli2301 [7.4K]3 years ago
8 0

Answer:

1000

Step-by-step explanation:

ends up positive

QveST [7]3 years ago
4 0

Answer:1000

Step-by-step explanation:

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George bought 7 ounces of grapes for $3.36. What was the price of the grapes per<br> ounce?
White raven [17]

Your answer is quite simple, really. All you have to do is divide $3.36 by 7 (The ounces of grapes he bought), and your answer should come out to be $.48, to check if this is correct, you then should add .48, 7 times, or multiply it by 7. Which, is what I did. And that should bring you to 3.36!

8 0
3 years ago
Tìm x : 2x^2-7x+3=0<br> giúp tui zới, please
Gnoma [55]
<h2>Solving Quadratic Equations with the Quadratic Formula</h2>

<h3>Answer:</h3>

x = 3 and x = \frac{1}{2}\\

<h3>Step-by-step Explanation: </h3>

Recall:

if we have a quadratic equation, ax^2 +bx +c = 0, where a, b and c are real numbers and a \neq 0, x = \frac{-b \pm \sqrt{b^2 -4ac}}{2a}.

Given:

2x^2 -7x +3 = 0

Solving for x:

x = \frac{-(-7) \pm \sqrt{(-7)^2 -4(2)(3)}}{2(2)} \\ x = \frac{-(-7) \pm \sqrt{49 -4(2)(3)}}{2(2)} \\ x = \frac{7 \pm  \sqrt{49 -24}}{4} \\ x = \frac{7 \pm \sqrt{25}}{4} \\ x = \frac{7 \pm 5}{4}

Solving with the positive value:

x = \frac{7 +5}{4} \\ x = \frac{12}{4} \\ x = 3

Solving with the negative value:

x = \frac{7 -5}{4} \\ x = \frac{2}{4} \\ x = \frac{1}{2}

7 0
3 years ago
Find a number which decreased by 10 is 4 times its opposites.
Katena32 [7]

Answer:

40

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
URGENT, WILL MARK BRANLIEST!!! PLEASE HELP PHOTO BELOW
Goryan [66]

Answer:

DBE=50 degrees

ABD=140 degrees

Step-by-step explanation:

CA is a line which means that it equals 180 degrees total. Subtract the other angle measurements to find that DBE is 50 degrees. Then add the angles DBE, EBF, and FBA. Hope this helps!

5 0
3 years ago
A. Solve the differential equation <img src="https://tex.z-dn.net/?f=y%27%3D2x%20%5Csqrt%7B1-y%5E2%7D%20" id="TexFormula1" title
kirill [66]
y' = \frac{dy}{dx}

seperable differential equations will have the form
\frac{dy}{dx} = F(x) G(y)

what you do from here is isolate all the y terms on one side and all the X terms on the other
\frac{dy}{G(y)} = F(x) dx
just divided G(y) to both sides and multiply dx to both sides

then integrate both sides
\int \frac{1}{G(y)} dy = \int F(x) dx&#10;&#10;

once you integrate, you will have a constant. use the initial value condition to solve for the constant, then try to isolate x or y if the question asks for it


In your problem,
G(y) = \sqrt{1-y^2}&#10;&#10;F(x) = 2x

so all you need to integrate is
\int \frac{1}{\sqrt{1-y^2}} dy = \int 2x dx
5 0
4 years ago
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