The answer is b hope im rite
Answer:
She has 11 dimes and 17 nickels
Step-by-step explanation:
dimes --- d
nickels -- n
Equation with number of coins:
Divide by 5
sub in the other equation:
She has 11 dimes and 17 nickels
check:
total = 11 + 17 = 28 , check!
value: 10(11) = 5(17) = 195 , check!
Started at first floor
went up 18 floors, so now we are at 1+18 or 19th floor
then cam down 11 floors, so now we are at 19-11 or 8th floor
then went up 16, so now at 16+8 or 24th floor
it stopped at 24th floor
Hello from MrBillDoesMath!
Answer: The first bullet point: 5b + 3 - b -b - 4
Discussion:
5b +3 -b -b -4 =
(5b - b -b ) + ( 3 -4 ) =
3b + (-1) =
3b -1
Thank you,
MrB
6.2m, 6.2m, 3.2m
the legs of an isosceles triangle are equal
let the leg be x then the base is x - 3 ( 3 smaller than a leg )
perimeter is the sum of all 3 sides, thus
x + x + x - 3 = 15.6 ( solve for x )
3x - 3 = 15.6 ( add 3 to both sides )
3x = 15.6 + 3 = 18.6
divide both sides by 3
x = = 6.2
the sides are 6.2m, 6.2m, 3.2m