Select all the correct systems of equations. Which systems of equations have no solution?
x + 4y = 23
-3x = 12y + 1
2x + y = 17
-4x = 2y - 34
2x + 4y = 22
-X = 2y - 11
3y = 10 -
2x + y = 7
2x + y = 15
x = 15 - 2y
y = 13 - 2x
4x - y = -1

$97520

step-by-step explanation:

add 6% to the value she got from selling the house.

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.

click to let others know, how is it

0.0

0 votes

1

report

read more on -

step-by-step explanation: