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Tems11 [23]
2 years ago
6

Plz help me If u do u are smart and gain 10 pts

Mathematics
1 answer:
Neporo4naja [7]2 years ago
4 0

Answer:

White:1.2kg

green:2kg

black:2.8

Step-by-step explanation:

Total ratio = 3+5+7=15

white :

=  \frac{3}{15}  \times 6

= 1.2

green:

\frac{5}{15}  \times 6

= 2

black:

\frac{7}{5}  \times 6

= 2.8

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How many significant digits are there in 17.0
svet-max [94.6K]
The answer is three significant figures. The 1 and the 7 are both significant, because they are non-zero quantities.
This is where significant figures gets a little more complicated, because if a zero is used as a placeholder (i.e. 0.00027 cm) then it is insignificant.
But in the case above, the zero isn't being used as a placeholder, and thus, is significant.
4 0
3 years ago
A nursery has 10 tree seedlings to give out at 2 workshops. It wants to give out a minimum of 2 seedlings at each workshop. How
11111nata11111 [884]

We are given total 10 tree seedlings.

Number of workshops = 2.

Here order doesn't matters.

<em>When order doesn't matters we apply combination.</em>

We know formula of combination:

C(n,r) = \frac{n!}{r!(n-r)!}

For the given situation, we have

n=10 and r=2.

Plugging values in formula, we get

\frac{10!}{2!(10-8)!}  = \frac{10\times 9\times8!}{2!8!}

\frac{10 \times 9}{2} = \frac{90}{2} =45

<h3>Therefore, 45 different ways can the nursery give out seedlings.</h3>
5 0
3 years ago
A student wants to construct the inscribed circle of a triangle. What is the first step he/she should take?
pantera1 [17]

The <em>correct answer</em> is:


d) Construct the angle bisector of each angle in the triangle


Explanation:


The incenter, or center of an inscribed circle, is the point where the angle bisectors of a triangle intersect. This means the first thing we will need to construct is the bisector of each angle of the triangle.

8 0
3 years ago
Read 2 more answers
Two simple questions
frutty [35]
Oh i love these x=4,y=9
3 0
3 years ago
An electrician charges $40 to come to your house.She also charges $55for each that she works. The electrician charges you total
shusha [124]

Answer:

Step-by-step explanation:

First, write an equation. 55x+40=190.

X represents the hours the electrician works. The 55 represents the $55 that she charges for each hour she works. The +40 for the $40 that was the price just to come to your house. The 190 is the total cost. Now, solve that equation.

55x+40=190

55x=150

x=2.72727272...

So the answer is 2.727 hours. It can be rounded as needed or turned into a decimal, 2 8/11.

5 0
3 years ago
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