Answer:
y=2x+5
Step-by-step explanation:
To find a linear equation you must find the slope and y intercept to create an equation in y=mx+b form (slope-intercept form)
So slope is = y2-y1 / x2-x1 [2 and 1 are subscripts] so 11-7/3-1 so m=4/2 = 2
Slope = 2, now find b
So using y = mx + b, substitute what you know so 7 = 2(1) + b so b=7-2 = 5
Put it all together y = 2x + 5
2^4
Answer:
Let's solve the problem step-by-step:
We are given that the sum of three numbers is 2100. Let's call the first number x and the other two numbers y and z.
From the information given, we know that x = y + z, and y = z (the other two numbers are equal to each other).
Substituting y = z into x = y + z, we have x = 2z.
We are also given that the sum of the three numbers is 2100. So, we can write the equation x + y + z = 2100.
Substituting x = 2z and y = z, we have 2z + z + z = 2100.
Simplifying the equation, we have 4z = 2100.
Dividing both sides of the equation by 4, we find z = 525.
Substituting z = 525 back into y = z, we find y = 525.
Finally, substituting z = 525 and y = 525 back into x = 2z, we find x = 1050.
Therefore, the three numbers are x = 1050, y = 525, and z = 525.
Among the options provided, the correct answer is A) (1050, 525, 525).
Answer:
h = 13cm and b= 54cm.
Step-by-step explanation:
We have that the area and the base is two centimeters longer than four times the height, that is
where b is the base and h the height. Now, the area is
.
Now, we are going to use the general formula to solve quadratic ecuations:
where a=4, b= 2 and c= -702.
or
As we are searching for the lenght, we choose the positive result:
.
2y - 4x =
10
5
10
Answer: -10
Step-by-step explanation:
Answer:
23.8 years
Step-by-step explanation:
85% can be written as 0.85
0.85 * 28 = 23.8 years
Answer:
Step-by-step explanation:
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