Jamie is 5 years older than Ella. Jamie's age is 11 years less than three times Ella's age. The system below models the relation
ship between Jamie's age (j) and Ella's age (e):
j = e + 5
j = 3e – 11
Which of the following methods is correct to find Jamie's and Ella's age? (4 points)
Solve j + 5 = 3j – 11 to find the value of j.
Write the points where the graphs of the equations intersect the x-axis.
Write the points where the graphs of the equations intersect the y-axis.
Solve e + 5 = 3e – 11 to find the value of e.
2 answers:
The correct method is to use the equation
e + 5 = 3e - 11
on solving, we get e = 8 and j = 13
Other methods are complicated.
The correct answer is to solve e+5=3e-11 for e.
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Answer:
10
Step-by-step explanation:
7*2 - 2*2 = 14 - 4 = 10
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Answer:
8 is the number
Step-by-step explanation:
3x8= 24
24-9 is 15
Area of a triangle=bh/2
27= x(x-3)/2
27= (x^2-3x)/2
54= x^2-3x
x^2-3x-54=0
(x-9)(x+6)=0
x=9, x=-6.
In this case, x must equal 9 since the base cannot be a negative number.
Final answer: Height=6 m
Step-by-step explanation:
2(10)+2(x+4)
20 + 2x + 8
20 +8 +2x
28+2x
Answer:
100 in^2
Step-by-step explanation:
Solve Area first:
5x8
= 40
Multiply by 2.5 (Enlarge)
40 x 2.5
= 100
