Answer:
1 1/7 miles
Step-by-step explanation:
Since Kenny can run 2/7 of a mile in 1/4 of a hour we can multiply 2/7 by 4 and we end up with 1 1/7 miles ran.
for these you need to rearrange the equations and do substitutions.
#3 = if x+y=5 then you know x = 5-y
now substitute that equation for x in the 2nd one so x + 2y = 8 becomes
5-y + 2y = 8 2y - y becomes 1y which becomes y then subtract 5 from each side to get y =3
now replace y with 3 in the first equation x = 5-3 so x = 2
so (2,3) is the answer
same type of work for #4
2x-y=6 ,S0 y = 2X+6
so now you have 4x+2(2x+6)=-4
that becomes 4x +4x+12 = -4
8x+8 = 1, x =1
y = 2(1)-6 = -4
so answer is (1,-4)
A toothbrush weighs that much. a paperclip weighs less then an ounce, about 0.049 oz.
have a nice day
Answer:
=> ( 546 x 65 ) /35 = 294
total seats are there : 294 +546 = 840 seats
Step-by-step explanation:
Pizzas cost $8 and sandwiches cost $2.50
