Answer:
<h2><em><u>
y = -x - 1</u></em></h2>
Step-by-step explanation:
The line is going in a negative direction. This means that the line is negative. The slope is -1. The y- intercept is the coordinate (0,-1). SO the equation is y = -x - 1.
Note 1: A constant number (A number without an exponent) will have the degree of 0. Always.Note 2: A variable without a visible exponent obtains an exponent of 1. Ex. x = Note 3: The operation sign before a coefficient/constant indicates if it's positive or negative. If no subtraction (or even addition) sign is in front of a value, it's positive. If a subtraction sign stands in front of a value, the value is negative. If an addition sign stands in front of the value, the value is negative.Note 4: When a number is not standing in front of a variable, it translates to 1 times that variable. Ex. x = 1xNote 5: coefficients contain a number and a variable.
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Step 1: Remove the parentheses. [we do this by distributing what's in the parentheses by 1. For the first part (-7ab + 7a-1), you can simply just remove the parentheses because it doesn't affect what's in the parentheses whatsoever. For the second one, (ab +8) however, you distribute -1 which gets us, essentially, different number signs.
Result:
Step 2: Order, Sort, and Combine like terms.View attachment!
Step 3: Solve.
Answer:
Answer:
75 students
Step-by-step explanation:
So firstly lets make convert these words to alegbra :
30 people are 40%of the total students at the event meaning that the following equation can be made :
30 = 40% of x (x is the unknown amount of students there)
30 = 40% * x
30 = 0.4x (we can convert the precentage into a decimal by dividing by 100)
Now that we have the equation that 30 = 0.4x we can evalute it and find x :
30=0.4x
30/0.4=0.4x/0.4 (divide by 0.4 on both sides)
75=x
So thats how we get that 75 students were in the event in total.
The answer is 24 because 2x12=24
Answer:
its the third one
Step-by-step explanation:
y=1/2x-3
because the y intercept is -3 so its the third one