9 9 2
1 6
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5 9 5 2
9 9 2
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1 5,8 7 2 <==
Answer:
(a) x + 3(x + 4) = 5(x + 2) - 5
(b) youngest: 7 years old
middle: 9 years old
oldest: 11 years old
Step-by-step explanation:
(a)
We know that x is the youngest child's age. Since the sisters' ages are consecutive odd integers, we know that the ages differ by 2. So, the middle sister's age is x + 2 and the oldest sister's age is x + 4.
Our equation to model the sentence "the sum of the age of the youngest and three times the age of the oldest is five less than five times the middle sister's age" would be:
x + 3 * (x + 4) = 5 * (x + 2) - 5
x + 3(x + 4) = 5(x + 2) - 5
(b)
Now, we can just solve the equation above:
x + 3(x + 4) = 5(x + 2) - 5
x + 3x + 12 = 5x + 10 - 5
4x + 12 = 5x + 5
x = 12 - 5 = 7
So, the youngest sister is 7 years old.
That means the middle sister is 7 + 2 = 9 years old, and the oldest sister is 9 + 2 = 11 years old.
The ages, then, are:
youngest: 7 years old
middle: 9 years old
oldest: 11 years old
Answer: (4,4)
Step-by-step explanation:
You have to make a graph then pinpoint (-3,-5) and (1,-1). Then count how mapny units up till you get to (-3,-1) (which is 4) then count to the right 4 units and you should land on (1,-1). Calculate how many times you moved units.
Triangles are congruent if any pair of corresponding sides and their included angles are equal in bothtriangles. There are five ways to test that two triangles are congruent. This is one of them
Answer:
4 >_ 3
Step-by-step explanation:
