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joja [24]
3 years ago
14

As part of statistics project, math class weighed all the children who were willing to participate as shown below.

Mathematics
1 answer:
umka2103 [35]3 years ago
5 0

Answer:

18

Step-by-step explanation:

The key of this leaf stem-leaf plot is:

4 | 5 = 45

Therefore, the data points that represents children with weight that is less than 50 pounds would be as follows:

First row => 12, 13, 15, 15 15, 16, 16, 19

Second row => 23, 25

Third row => 33, 35, 37, 38, 39

Fourth row => 44, 45, 45

Therefore, the number of children that weigh less than 50 pounds = 18

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The model below represents the equation X-3 = 3x - 7
denis23 [38]

Answer:

ANSWER: Option B.

Step-by-step explanation:

Hey there!

The equation is;

x - 3 = 3x - 7

Now, Take 'x' to right side and '-7' to left side.

- 3 + 7 = 3x - x

Simplify them to get answer.

4 = 2x

\frac{4}{2}  = x

Therefore the value of x is 2.

<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em>

5 0
4 years ago
An elevator descends at a constant speed. What is the
Firlakuza [10]

Answer:

-42.75 meters

Step-by-step explanation:

4 0
4 years ago
Help guys but thanks to your help I got a 100 on my homework yesterday .
Alexeev081 [22]
Easy peasy
1.
d=number of dudes
l=number of ladies
total is 55 so
d+l=55

total cost is 75 so
2d+l=75
multiply first eeuqaiton by -1 and add to second

2d+l=75
<u>-d-l=-55 +</u>
d+0=20

d=20
sub
d+l=55
20+l=55
l=35
35 ladies




2.
ratio and proportion
$87 is to 8 as is $x is to 5
87/8=x/5
times both sides by 5
435/8=x
use calculator
54.375=x
round
$54.38 recieved


3.
around the edge
means perimiter
disregard how deep the pool is

60 feet long
x wide
P=2(L+W)
P=220
220=2(60+x)
divide 2
110=60+x
minus 60 both sides
50=x
it has to be 50 feet wide




4. monthly over 5 years
1 year=12 months
12 times 5=60 months
12381/60=206.35 per month
$206.35

5.
total-food-gas-utilities=left
1624-256-125-150=1093 left
you should be able to do this one no problem
$1093 let





1. 35 ladies
2. $54.38
3. 50 feet
4. $206.35
5. $1093
3 0
3 years ago
Which transformations have been applied to the graph of f(x) = x2 to produce the graph of g(x) = –5x2 + 100x – 450? Select three
RSB [31]

Answer:

The graph of f(x) is shifted up 50 units

The graph of f(x) is shifted right 10 units

The graph of f(x) is reflected over the x-axis

Step-by-step explanation:

we have

f(x)=x^{2}

This is a vertical parabola open upward

The vertex is a minimum

The vertex is the origin (0,0)

g(x)=-5x^{2}+100x-450

This is a vertical parabola open downward

The vertex is a maximum

The first thing to note is that fx) is a parabola that opens up and g(x) opens down, so a reflection across the x-axis must have been applied.

Find the vertex of g(x)

Convert to vertex form

g(x)=-5x^{2}+100x-450

Complete the square

g(x)=-5(x^{2}-20x)-450

g(x)=-5(x^{2}-20x+100)-450+500

g(x)=-5(x^{2}-20x+100)+50

g(x)=-5(x-10)^{2}+50

The vertex is the point (10,50)

so

To translate the vertex of (0,0) to (10,50)

The rule of the translation is

(x,y) ------> (x+10,y+50)

That means ----> The translation is 10 units at right and 50 units up

therefore

The transformations are

The graph of f(x) is shifted up 50 units

The graph of f(x) is shifted right 10 units

The graph of f(x) is reflected over the x-axis

5 0
3 years ago
Read 2 more answers
Here is the base of a prism.
IceJOKER [234]
She did it right ^^^^^
3 0
3 years ago
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