Answer:
713,920
Step-by-step explanation:
Round to the second place (tens)
Answer:
20 tshirts and 150 keychains
Step-by-step explanation:
let tshirts be 10x and keychains be 2y
now make a Quadratic equation,
10x+2y=500
=let x = 20
=(10×20)+2y=500
=200+2y=500
=2y=300
y=300/2 = 150
therefore 20 tshirts and 150 keychains sumsup their goal of 500 dollars
Answer:
x = 61.5
Step-by-step explanation:
The sum of the interior angles of a quadrilateral = 360°
Sum the 4 angles and equate to 360
110 + 130 + x + x - 3 = 360
2x + 237 = 360 ( subtract 237 from both sides )
2x = 123 ( divide both sides by 2 )
x = 61.5