Answer:
math.way
Step-by-step explanation:
Answer:
21
Step-by-step explanation:
90+15=105
105÷5=21
Answer:
about 32.4 meters
Step-by-step explanation:
The area of a parallelogram is the equation A=Base times Height.
Put in the known values 6.75m and 218.72meters squared into the equation.
It becomes the total area 218.72 = 6.75(h)
To get h or height by itself, you have to divide both sides by 6.75. You will get the answer 32.402, or you can round it to 32.4 meters.
1 car - 4 wheels
1 motorcycle - 2 wheels
x - number of cars
y - number of motorcycles
so, there are 70 vehicles: x + y = 70
and all togeather they've got 258 wheels: 4*x + 2*y = 258
because each car has 4 wheels, so all car wheels = 4*x,
likewise 2*y for motorcycles
x + y = 70 /* 4
4 x + 2y = 258
4 x + 4 y = 280 (R1)
4 x + 2y = 258 (R2)
2y = 22 /:2 it is R1 - R2
x = 70 - y
y = 11 /motorcycles
x = 70 - 11 = 59 /cars
check:
59 + 11 = 70 ok
59 * 4 + 11 * 2 = 236 + 22 = 258 ok
Answer:
B.) -3
Step-by-step explanation:
