A bridge that crosses a river 16 feet wide requires 4 reels of cable, 7.5 ten-foot steel rods, 3.012 pounds of
bolts, and 18.25 hours to assemble. If a bridge were to
be built across the Mississippi River (1,600 feet wide),
how much of each of the following items would be
needed: pounds of bolts, ten-foot steel rods, reels of
cable, and hours to assemble?

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

answer: 0.26

i used the calculator on google

25/6

step-by-step explanation:

you multiply 4 by the denominator (4*6=24) and add it to the numerator which makes it 25/6.