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wariber [46]
4 years ago
9

What is the sum of 8 (4/5) and 4 (1/2)

Mathematics
1 answer:
sp2606 [1]4 years ago
7 0

Answer:

8(0.8)+4*0.5

=6.4+2

=8.4 ANS

Step-by-step explanation:

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Negitive 4/5 - 7/8 pls help confused about this
GrogVix [38]
For -4/5-7/8 it is -1.675


But for 4/5-7/8 it is.075
4 0
4 years ago
Two consecutive vertices of a regular octagon are located at (1, 4) and (4,8). This octagon's perimeter is.....?
igor_vitrenko [27]

Answer:

40 units

Step-by-step explanation:

An octagon is a polygon with 8 sides. A regular octagon is an octagon in which all their sides and angles are equal to each other.

Since the vertices of a regular octagon are located at (1, 4) and (4,8), hence the length of the side is gotten using the formula for calculating the distance between two points X(x_1,y_1)\ and\ Y (x_2,y_2).

|XY|=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Hence:

Length=\sqrt{(4-1)^2+(8-4)^2}=5\ units

Since all the sides of a regular octagon are equal, therefore:

Perimeter = 8 × length = 8 × 5 = 40 units

4 0
3 years ago
What is the x-value in the solution to this system of linear equations?
Nadusha1986 [10]

Step-by-step explanation:

2x - y = 11 -----(1)

x + 3y = -5 ------(2)

By

eliminating "y"

multiple equation 1 by 3 and equation 2 by 1

3×2x - 3y = 3×11

6x - 3y = 33 -----(3)

x + 3y = -5 ------(2)

add eqn (3) and eqn(2)

7x + 0 = 28

7x/7 = 28/7

x = 4

I hope this will help you, good luck!!!

6 0
3 years ago
If 2x + 5y = -5 what is x if y = -5<br> HELP ASAP
mash [69]

Answer:

x=10

Step-by-step explanation:

first substitute y with the value (-5)

2x+5(-5)=-5 which is simplified to 2x+-25=-5

add 25 to -5 which gives you 2x=20

then divide 20 by 2 which makes x=10

7 0
3 years ago
Juan has 4 purple Gatorade, 5 clear Gatorade, and 11 red Gatorade. What is the
hodyreva [135]
55%. Also love your pfp!
8 0
3 years ago
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