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topjm [15]
3 years ago
11

Tyler is a builder. When he makes mortar, he uses CEMENT, LIME and SAND in the ratio 1:2:8. If he makes 55 kg mortar, find how m

uch of : a) CEMENT b) LIME c) SAND is used
Note: Show your all working and steps​
Mathematics
1 answer:
soldi70 [24.7K]3 years ago
7 0

Ansb

wer:

Step-by-step explanation:

fr3wrwsffffffffffffffffffffffff  fdadfsd

thank you

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What is the difference and what is their value?
anastassius [24]

Answer:

Look below.

Step-by-step explanation:

For one, g+g+g+g does not equal g^4. That equals g·g·g·g.

But like you said, 4g = g·g·g·g as well, so shouldn't they be equal?

The answer is more simple than you might expect:

We'll do the second one first. I don't know why, that is just how it is going to be done.

Let's assign a value to 'g'. We'll call it g = 3.

3 to the 4th power is

1) 3·3 = 9

2) 9·3 = 27

3) 27·3 = 81.

So g^{4} = 81.

But, you probably figured out, with g = 3, that 4g = 12, since 3·4 = 12.

Obviously, 81 ≠ 27, meaning these are not the same, and that is the main difference.

3 0
3 years ago
John has a 6cm long rose candle. He lights the candle at 7pm. After two hours it was 3cm long. Find the slope of the line.
kifflom [539]

slope = change in height/change in time

(0,6) (2,3)

   = (6-3)/ ((0-2)

   = 3/-2

   =-3/2

The slope is -3/2

5 0
4 years ago
A whopping 3,289 people attended the
astraxan [27]

Answer:

126 women

Step-by-step explanation:

7 0
3 years ago
Based on concerns raised by his preliminary research, the biologist decides to collect and examine 150 frogs.
Delicious77 [7]

Answer:

Answered and explained below

Step-by-step explanation:

A) We are told that frequency of the trait is still 1 in 8. Thus, population proportion; p = 1/8 = 0.125

Sample size; n = 150

Formula for mean is;

μ = np

μ = 150 × 0.125

μ = 18.75

Formula for standard deviation is;

σ = √(np(1 - p))

σ = √(150 × 0.125(1 - 0.125))

σ = √16.40625

σ = 4.05

B) usually, when np ≥ 10 , we make use of normal distribution.

I'm this case, it is 18.75 which is greater than 10.

Thus,we can use a normal model to approximate the distribution.

C) we are told that he found the trait in 22 of the frogs.

Thus;

Proportion is now; 22/150 = 0.1467

This is a higher probability that the initial one of 0.125 and we can say that the trait has become more common.

6 0
3 years ago
The points (1,r) and (5, -3) lie on a line with slope<br> 4<br> Find the missing coordinate r.
OverLord2011 [107]

Answer:

-19

Step-by-step explanation:

5-1=4

x/4=4

16/4=4

-3-16=-19

6 0
4 years ago
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