Answer:
John is 31
Ella is 25
Step-by-step explanation:
Let sister's age be x, then John's age is (x + 6). So from sentence 2,
(3x) - 2(x + 6) = 13
3x - 2x - 12 = 13
x = 13 + 12 = 25
and x + 6 = 31
First convert the fractions into inpropper fractions by takeing the denominator and multiplying it by the whole number blus the nummerator. For 3(1/2) it becomes 7/2 and for 1(1/2) it becomes 3/2. Then multiply the fractions 7/2 x 3/2 = 21/2 now make it a mixed fraction so the answer is 2(1/2)
3,000/200 = 15 and 15 * 200 = 3,000. So the rate of change is 15
Find 2 numbers that multiply to 6 and add to 5.
3*2 = 6
3+2 = 5
x^2 + 5x+6 = (x+3)(x+2) = 0
Set each factor equal to zero.
x+3 = 0 ----> x = -3
x+2 = 0 -----> x = -2
Answer:
There are two zeros at -2 and -3.
Answer:
Length of BE is 
Step-by-step explanation:
The length of a side of a triangle is 36. A line parallel to that side divides the triangle into two parts of equal area. we have to find the length of the segment determined by the points of intersection between the line and the other two sides of the triangle.
Now, the two parts of triangle have equal area ∴ ar(ADE)=ar(BDEC)
⇒ 
⇒ 
In ΔABE and ΔABC,
∠A=∠A (Common)
∠ABE=∠ABC (Corresponding angles)
By AA similarity, ΔABE is similar to ΔABC.
Hence by area side proportionality theorem

⇒ 
⇒ 
⇒
units
Hence, length of BE is 