I need help on the 3 of them

Mathematics

1 answer:

Tamiku [17]3 years ago

6 0

Answer:

1) 75 minutes / 1hour 15minutes

Step-by-step explanation:

to get one question done takes (45 ÷ 12) minutes. then times by 20.

Answer

2) I'm not too sure, I got 208.3 reoccurring, but that doesn't seem right so sorry if it's wrong

Answer

3)168 girls

step-by-step explanation

364 ÷ (6+7) × 6

You might be interested in

What number should be placed in the box to help complete the division calculation?

LenKa [72]

Answer:

Step-by-step explanation:

25x14=350

8 0

3 years ago

It takes a hose 2 minutes to fill a rectangular aquarium 8 inches long, 10 inches wide, and 14 inches tall. How long will it tak

kari74 [83]

Answer:

66 minutes, or 1 hour and 6 minutes.

Step-by-step explanation:

let us first do the rectangular aquarium:

8 x 10 = 80

80 x 14 = 1120

now the second box

23 x 25 = 575

575 x 33 = 18975

we can divide the boxes volume:

18975/575 = 33

so all we have to do is times 33 by 2 which equals:

66 minutes, or 1 hour and 6 minutes.

4 0

2 years ago

What is 2^30 write using exponents explain ur reasonging

padilas [110]

2 to the 30 power is <span>1073741824</span>

5 0

3 years ago

Part 1. Please show work. Please assist me with these math problems.

Vitek1552 [10]

Answer: 1) 2, 3, 4, 9, 32, 279, 8896, 2481705, 22077238784

2) 2,490,924

3) Neither

<u>Step-by-step explanation:</u>

$S_n=S_{n-2}\cdot (S_{n-1}-1)\quad \\\\S_1=2\quad given\\S_2=3\quad given\\S_3=S_1(S_2-1)\quad =2(3-1)\quad =4\\S_4=S_2(S_3-1)\quad =3(4-1)\quad =9\\S_5=S_3(S_4-1)\quad =4(9-1)\quad =32\\S_6=S_4(S_5-1)\quad =9(32-1)\quad =279\\S_7=S_5(S_6-1)\quad =32(279-1)\quad =8,896\\S_8=S_6(S_7-1)\quad =279(8896-1)\quad =2,481,705\\S_9=S_7(S_8-1)\quad =8896(2481705-1)\quad =22,077,238,784$