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mestny [16]
3 years ago
7

Ivan has 6 times as many blue beads as red beads he has 49 red and blue beads in all how many blue beads does Ivan have

Mathematics
1 answer:
Charra [1.4K]3 years ago
8 0
Ivan has 42 blue beads and 7 red beads
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Please help <br> Show workings <br> Pleasssssseeeeee
Ad libitum [116K]
Just set them equal to each other
2x-2= x+3

2x-5=x
-5= -x
X=5

Hope it helps
7 0
3 years ago
Find the range and interquartile range (IQR) of the data set in the box plot.
Eduardwww [97]

Answer:

Range = 23

IQR= 14.5

Step-by-step explanation:

Range is the biggest number- smallest number

so 30-7=23

IQR - Interquartile range = upper quartile - lower quartile

24-9.5=14.5

6 0
3 years ago
Line DE contains the points D (–1, –4) and E (3, 3). Line FG contains the point F (–3, 3). Which set of coordinates for point G
Bond [772]

Answer:

The set of coordinates for point G that make the two lines perpendicular are given through the relation

7y = -4x + 9

Step-by-step explanation:

The condition for perpendicularly of two lines is that the products of the slope of the two lines, m₁ and m₂ must be equal to -1.

For a line whose two points (x₁, y₁) and (x₂, y₂)

on the line are known, the slope of the line, m, is given as

m = (Δy/Δx) = (y₁ - y₂) ÷ (x₁ - x₂)

points D (–1, –4) and E (3, 3).

Let the slope of DE be m₁ and the slope of FG be m₂

Since the two lines are perpendicular,

m₁m₂ = -1

m₁ = (Δy/Δx) = (-4 - 3) ÷ (-1 -3) = (7/4) = 1.75

Since, m₁m₂ = -1, this means that,

m₂ = (-1/m₁) = (-1/1.75) = -(4/7)

Let the coordinates of point G be (x, y)

m₂ = (3 - y) ÷ (-3 - x)

(-4/7) = [(3-y)/(-3-x)]

-4(-3-x) = 7(3-y)

12 + 4x = 21 - 7y

7y = -4x + 9

Hope this Helps!!!

8 0
3 years ago
Find the two-digit number which is 2 times the sum of its digits. Find a statement and number, please.
poizon [28]
A two-digit number is twice the sum of its digit. If the tens digit is 7 less than the unit digit, find the number. 
Let x= the unit digit
Then y= the tens digit
<span>And 10y+x= the number 


</span>x+y= the sum of the digits 
<span>Now we are told that 10y+x=2(x+y) ------1st equation </span>
<span>We are also told that y=x-7 ----------- 2nd Equation </span>
<span>So our equations to solve are: </span>
(1) 10y+x=2(x+y)
<span>(2) y=x-7 
</span>

Hope it helps
5 0
3 years ago
Read 2 more answers
Describe the cross section
hichkok12 [17]
The answer for the exercise is the third option, which is: Hexagon.
 The explanation is shown below:
 As you can see in the figure attached, the cross section is a polygon of six sides and six angles. Therefore, it has six vertexes. In geometry, this type of polygon is known as "Hexagon".
6 0
3 years ago
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