Solve 13 and 14, please.

Mathematics

1 answer:

Amiraneli [1.4K]2 years ago

3 0

Answer: The answer to 13 is 30. but one row will only have 1

Step-by-step explanation:If you divide 121 by 4 you will get a answer of 30 with a remainder of 1. since it is a uneven number. So you will have one row with only 1 chair.

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Please help me with this problem

Alexus [3.1K]

(a) It is leaking 18 liters per minute.

Explanation : From 15 minutes to 20 minutes, your starting point at 15 is 590 liters and at 20 you have exactly 500. Next you have 25 which is now at 410. So it's leaking 90 liters every five minutes, so of course dividing the two (90 ÷ 5) you get 18.

(a)² it increases for about the same time that it would decrease of course.

(b) The vat started at 860 liters before they started draining it.

Explanation : Well, all it takes is just working backwards, add 90 liters to the liters at 15 minutes and deduct five minutes from 15. Do this process until you arrive at 0. It's simple

7 0

3 years ago

Use the quadratic formula to solve the equation to the exact value or round to two decimal places.

lys-0071 [83]

First set everything to 0.
${x}^{2} + x - 5$
Giving you A= 1 , B= 1 and C= -5
Then input everything into the quadratic formula and either solve by hand or use a calculator.
Note exact values are found by hand, decimals are found using a calculator.