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vekshin1
2 years ago
5

Find the value of 2x - y when x = -3 and y = -4​

Mathematics
1 answer:
Gre4nikov [31]2 years ago
8 0

Answer:

-2

Step-by-step explanation:

<u>We are given the following;</u>

  • \text{Expression:} \ 2x - y
  • y = -4
  • x = -3

Plug the value of y and x into the expression;

\implies 2x - y

\implies 2(-3) - (-4)

Simplify the expression as needed;

\implies 2(-3) - (-4)

\implies -6 + 4

\implies \boxed{-2}

Therefore, -2 is the value of 2x - y, when x = -3 and y = -4.

Leran more about this topic: brainly.com/question/556937

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One number is 9 more than twice another. If their difference is 22, what is the larger number?
mafiozo [28]
Let, the numbers are: x, y
So, Equations will be: x - y = 22
x = 2y + 9

Substitute the value of x in first equation, 
2y + 9 - y = 22
y = 22 - 9
y = 13

x - 13 = 22
x = 22 + 13 = 35

In short, Larger number would be 35

Hope this helps!
4 0
3 years ago
A cheetah ran 300 feet in 2.92 seconds. What was the cheetah’s average speed in miles per hour? Show your work.
alexdok [17]

Answer:

about 70.0 mph

Step-by-step explanation:

speed = distance/time

(300 ft)/(2.92 s)·(1 mi)/(5280 ft)·(3600 s)/(1 h) = (300·3600/(2.92·5280)) mi/h

≈ 70.0498 mi/h

8 0
3 years ago
What would your salary each year be if you earned $5,000 per week?
choli [55]
Yearly salary would be 240,000 for 5,000 and 48,000 for 1,000 a week
8 0
3 years ago
How state the roots as points when I have <br> x=6 and x=-2
dem82 [27]

I don't really know what you're trying to ask because

x = -2 and x=6 are your roots.

But if you want to convert them back to their equation form,

get the other side of the equation to be 0.

x = 6

x - 6 = 0

x = -2

x + 2 = 0

so your original equation had something like (x+2)(x-6)

6 0
3 years ago
Please check my answer : Find the equation of the line that has a slope of 8 and passes through the point (-3,4). I got y=8x-20
Paladinen [302]
The answer is y = -8x - 20. If you were to use y = 8x - 20 then you'd get 4 = -44, which, obviously, is not true. To fix it all you need to do is add a negative sign in front of the 8. y = -8x - 20.
7 0
3 years ago
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