Elisa can swim 10 laps in 20 minutes. At this same rate, Elisa can swim laps in 32 minutes.

16 laps

Step-by-step explanation:

10 laps in 20 minutes means that :

for 1 lap elisa swims for ( 20 /10 ) = 2 minutes

now you can cross multiply to get the answer for how many laps elisa can swim in 32 minutes

--- us the method of cross multiplication when there is one value that you need to find out .. if the rate of change is the same...

laps                     time

 1           :                 2

 x          :               32

32 * 1 = 2x

32 = 2x

x = 32/2

hence elisa takes 32 minutes to swim 16 laps

16 laps

Step-by-step explanation:

If Elisa can swim 10 laps in 20 minutes.

That’s 10 L = 20 mins

At this same rate Elisa can swim x laps in 32 mins

Therefore

10 laps = 20 mins

x laps = 32 mins

Cross multiply

20x = 10 x 32

20x = 320

Divide both sides by 20

20x/20 = 320/20

x = 16

Elisa can swim 16 laps in 32 minutes

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.