In an ant colony, 690 ants die in four days.

Each night, 35 more ants die than the night before.

How many ants died on the third night?

Many thanks ]]>

Please can someone assist. I am trying to help my 10 years old with his Maths homework.

First question is:

Simon went on a road trip for 4 days.

Over the first two days he drove a total of 112 km. He drove 6 km more on the second day than he did on the first day. How much km did he drive on the first day?

Second question is:

On the third and fourth day, Simon drove a total of 165 km. He drove four times as much on the third day as he did on the fourth day. How much km did he travel on the fourth day?

Thank you for your help. ]]>

I am doing a Wildlife Biology degree program and am in semester one with an Essential Scientific Maths exam next Tuesday. There is a question in past exam papers that I am finding difficulty in. At first I thought it was sim equations but that doesn't seem like it will work. Here is the question:

"The cost of admission to a exhibition for an adult is 3 times the cost of a child. Ayouth is charged more than a child but less than an adult. The total cost for an adult,a youth and a child is 28 euros. If 5 youths 2 children and 2 adults pay 80 euros, whatis the cost of admission for a youth?"

Thank You ]]>

Thank you. ]]>

Capture.PNG

Answer options:

a) 7

b)8

c)11

d)13

e)15

A) 12

B) 18

C) 36

D) 72

E)108

Right answer is option-- C)36. ]]>

< 8: does it mean value greater than 8?

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Without any understanding but playing with a calculator he worked out that to multiply fractions you multiply across:

E.g. 2/7 x 3/5 = 6/35.

Then he started with dividing fractions and typed in

12/24 divide 2/4 ,

He decided you do this in the same way but divide top and bottom so (12 divide 2 ) / ( 24 divide 4) = 6/6 =1

This works and a bit of algebra and you can see why.

And it is consistent with the multiplication algorithm, however the standard way of dividing fractions is to invert the second one and multiply.

Does my son's approach which doesn't work as easily for all fractions offer anything in terms of understanding dividing fractions? ]]>

Adam spent $27

Eve spent $9

Satan spent $36

Who owes who what?

Note: They share costs at a rate of about 30% or 1/3 (divide by 3) ]]>

My textbook says the answer is

The course work consists of 2 different pieces of work that are marked separately

the first course work piece is worth 20% and the second is worth 80%.

In the first coursework I got 17% out of the possible 20%

The second course work is marked in two parts

The first part is out of 22- of which I got 12

The second part is out of 30 - which I haven’t received a mark for yet

What mark do I need to get in the second part of the second course work to get an overall

mark of 50% for both course works combined?

Any help would be appreciated ]]>

I just have no idea how to work this out... can anyone please help? Its driving me nuts!!!

The pot of money is £6772.50 ]]>

example

I want to calculate row

So how to i calculate inc/dec for the following columns ?

"total volume A : 2804 B: 73924

"Avg OR A : 38.8% B: 21.1%

"Avg CTR A : 12.91% B: 5.74%

as you can see in the image

math.jpg

thank you in advance for you help and guidance

$5480 x 1.3 x 1.3 x 1.3 = $7907.08

What is the 1.3? Or where is this value coming from? Why three times? Is it for each decade? Does the 1.3 correspond to that 13%? Sorry I’m just trying to understand the process and reasoning for future problems. Thanks! ]]>