A system of equations is created by using the line represented by 2 x + 4 y = 0 and the line represented by the data in the table below. x
y
–1
8
3
–4
5
–10
6
–13

What is the x-value of the solution to the system?

1 1/5

step-by-step explanation:

12cm

the answer is d

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

what level of math? also i don't need to be paid if i can you.