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Brilliant_brown [7]
3 years ago
12

Suppose the tree diagram below represents all the students in a high school

Mathematics
1 answer:
Lunna [17]3 years ago
8 0

Answer:

Ok to find the probity we add the amount of boys and the amount of girls together to get 500 and out of these 100 are left handed so 1/5 also know as 20%

Hope This Helps!!!

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Mrs. Spect lost 1.25 pounds last week. She lost 2 pounds two
kenny6666 [7]

Answer:

On average she looses 1.33 pounds per week

Step-by-step explanation:

3/4=0.75

1.25+2+0.75=4 -> total weight loss

There are 3 weeks in total.

4/3=1.33

5 0
2 years ago
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
Who's is the solution set of the compound inequality 3.5x-10>-3 and 8x-9<39
velikii [3]
3.5x-10>-3  add 10 to both sides

3.5x>7  divide both sides by 3.5

x>2

... now for the other inequality:

8x-9<39  add 9 to both sides

8x<48  divide both sides by 3

x<6

So we have x>2 and x<6, so the compound inequality is:

2<x<6  and this means that the solution set is:

x=(2, 6)
4 0
3 years ago
Read 2 more answers
Pls help with year 8 maths
agasfer [191]

Answer:

a) 1

b)11

c)4

d)1

I hope it helps you...

3 0
3 years ago
Read 2 more answers
Triangle E D F has sides that are of varying lengths. Side E D has a length of 4 and side E F has a length of 9.
9966 [12]

Answer:

D E + E F greater-than D F

5 less-than D F less-than 13

Triangle D E F is a scalene triangle

Step-by-step explanation:

we know that

The Triangle Inequality Theorem states that the sum of any 2 sides of a triangle must be greater than the measure of the third side

we have the triangle EDF

where

ED=4\ units\\EF=9\ units

<u><em>Applying the triangle inequality theorem</em></u>

1)

ED+EF > DF\\4+9 > DF\\13 > DF\\DF < 13\ units

2)

ED+DF > EF\\4+DF > 9\\DF > 5\ units

so

The length of DF is the interval -----> (5,13)

The triangle DEF is a scalene triangle (the three length sides are different)

therefore

<em>The statements that are true are</em>

D E + E F greater-than D F

5 less-than D F less-than 13

Triangle D E F is a scalene triangle

3 0
3 years ago
Read 2 more answers
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