Step-by-step explanation:
the midpoint of the line segment joining the points (-3,-1) and (-7,6) :
X = (-3-7)/2= -10/2 = -5
Y = (-1+6)/2 = 5/2 = 2.5
=> (-5, 2.5)
We know that Step 1 is correct, because it is just a restatement of the equation. Therefore, we can eliminate Step 1:
2(5y – 2) = 12 + 6y
In Step 2, the student tried using the Distributive Property. The Distributive Property can be written as one of the two following formulas:
a(b + c) = ab + ac
a(b – c) = ab – ac
In this case, we'll use the second formula. Substitute any known values into the equation above and simplify:
2(5y – 2) = 2(5y) – 2(2)
2(5y – 2) = 10y – 4
In Step 2, the student calculated 2(5y – 2) to equal 7y – 4. However, we have just proven that 2(5y – 2) is equal to 10y – 4.
The student first made an error in Step 2, and the correct step is:
Step 2: 10y – 4 = 12 + 6y
I hope this helps!
0.7, 70% are a equivalent decimal and percent
Hello!
ANSWER:
5 10/13 rounded to the nearest tenth is A) 5.7.
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EXPLANATION:
Convert 5 10/13 to an improper fraction.
First, multiply the denominator by the whole number:
5 × 13 = 65
Next, add that to the numerator:
65 + 10 = 75
This is the new numerator. Place it over the old denominator.
5 10/13 = 75/13
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Now, convert the improper fraction to a decimal by dividing its numerator by its denominator:
75 ÷ 13 = 5.7692307692
This can be rounded to 5.7.
x+x+90=180
x+x+90=1802x+90=180
x+x+90=1802x+90=1802x=180-90
x+x+90=1802x+90=1802x=180-902x=90
x+x+90=1802x+90=1802x=180-902x=902x/2x =90/2
x=45
9y+9y+90=180
18y+90=180
18y=180-90
18y=90
18y/18 =90/18
y=5
