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MAXImum [283]
3 years ago
7

What is the y intercept of 2x - y = -1

Mathematics
1 answer:
professor190 [17]3 years ago
3 0

Answer:

1

Step-by-step explanation:

You have to rewrite this into slope intercept.

Find Y

2x-y=-1\\\\-y=-1-2x\\\\\frac{-y=-1-2x}{-1} \\y=1+2x

Therefore, the y intercept is 1

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PLZZ HELP.... I NEED MY GRADE TO GO UP BC ITS ALMOST MY BIRTDAY AND I CANNOT FAIL!! PLLLLLLLSSSSSSS WILL MARK Brainliest
Papessa [141]

Answer:

Each cupcake cost $2.50 and each brownie cost $2.00

Step-by-step explanation:

Let x represent the price of each cupcake and let y represent the price of each brownie.

Lily and Maddie bought one cupcake and one brownie for $4.50. Hence the equation is:

x + y = 4.50                (1)

Also Jessica purchased 3 cupcakes and one brownie for $9.50. Hence the equation is given by:

3x + y = 9.50              (2)

To find the price of each cupcake and brownie, we solve equation 1 and 2 simultaneously. To find x, subtract equation 1 from equation 2:

2x = 5

x = $2.50

Put x = $2.50 in equation (1):

2.50 + y = 4.50

y = $2.00

Therefore each cupcake cost $2.50 and each brownie cost $2.00

7 0
3 years ago
Given the points (-7, 9) and (5, 5) find the slope.<br> m=
-Dominant- [34]
Answer:

Step-by-step explanation:

Hey sweetie!

We are given two points: (-7, 9) & (5, 5)

And we are asked to find the slope

To do this only given two points use the Slope-Formula to solve for the slope

m = slope
m = y2-y1/x2-x1
m = 5-9/5–7
m = -4/12
m = - 1/3

The slope will be - 1/3

Final Answer: m = - 1/3
4 0
3 years ago
Zoe would like to be able to save for night courses at the local college. Which of these would be a good way for Zoe to make mor
nalin [4]

A. Spend 10 percent on clothing and 10 percent on entertainment

B. Spend 10 percent on entertainment and 20 percent on clothing

C. Spend 10 percent on rent and 10 percent on food

D. Spend 20 percent on food and 5 percent on gas.

Answer:

Spend 10% on clothing and 10% on entertainment

Step-by-step explanation:

Before answering this question, you need to know 2 types of expenses:

1. Fixed

2. Variable

Fixed expenses is the obligatory expenses which we do not have much control, and usually we have to pay in a certain amount of type. For example rent, student loan, grocery etc. In this case, the only fixed expenses is rent which you have to pay every month.

The other options: entertainment, clothing,food and gas are considered variable as it is not obligatory and you can choose how much you would spend.

Option C is not applicable since rent is a fixed expenses and can't be easily change.

Between A, B and C, A is the less amount of percentage compared the other.

7 0
3 years ago
How do I solve this equation?
frosja888 [35]

Answer:

x=-3/11

Step-by-step explanation:

(x+3)/5 +2x=0

Multiply both sides by 5 to get rid of the fraction

5*( x+3)/5 +5*2x=0*5

x+3 + 10x =0

Combine like terms

11x +3 = 0

Subtract 3 from both sides

11x+3-3 =0-3

11x = -3

Divide by 11

11x/11 = -3/11

x = -3/11

4 0
3 years ago
Garrett chooses to invest $1800 in a simple. The account earns 3% interest over 5 years which equation represents garrets invest
Alla [95]

The interest earned in 5 years would be $270

<u>Explanation:</u>

Given:

Principal, P = $1800

Rate of interest, r = 3%

Time, t = 5 years

Simple interest, I = ?

We know,

I = \frac{p X r X t}{100}

On substituting the value we get

I = \frac{1800 X 3 X 5}{100} \\\\I = 270

Therefore, interest earned in 5 years would be $270

6 0
4 years ago
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