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3 years ago

PLEASE HELP!! ABCD is a rectangle. If AC = 4x - 60 and BD = 30 - x, find BD.

Mathematics

2 answers:

frutty [35]3 years ago

5 0

Answer:

bd=12

Step-by-step explanation:

slega [8]3 years ago

5 0

Answer:

x=18 if u are solving and bd=12

Step-by-step explanation:

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4x-2y=7 -3x+3y=10 Find the point of intersection of the equations

garri49 [273]

4x-2y=7 (1)
-3x+3y=10 (2)
3y= 3x+10
y= x+10/3 (3)
sub (3) into (1)
4x-2(x+10/3)=7
4x-2x-20/3=7
2x-20/3=7
+20/3 +20/3
2x= 41/3
x= (41/3) / 2
x= 41/6
sub x= 41/6 into (3)
y= 41/6+10/3
= 61/6

Therefore the point of intersection is (41/6, 61/6)

4 0

3 years ago

Read 2 more answers

1998 and 25years later what year will it be

SOVA2 [1]

25 years after 1998 would be the year 2023

7 0

3 years ago

Solve the equation - 9x – 2y=-12 2x+5y=-11 X= Y=

inysia [295]

Answer:x=2, y=3

Step-by-step explanation:

solving this equation simultaneously

-9x - 2y=-12.............(1)

2x + 5y=-11.. ...........(2)

Using elimination method

Multiply equation 2 by 2 and equation 1 by 5

-45x -10y= -60...........(3)

4x + 10y=-22...............(4)

Subtracting equation 2 from 1

-41x + 0=-82

41x=82

x=82/41

X=2

To find y put x in equation 1

-9x - 2y= -12

-9(2)-2y=-12

-18-2y=-12

-2y=-12+18

-2y=6

Y= 6/2

Y=3

X=2, Y=3

3 0

4 years ago

Dalton's dad rode his bike 1 kilometer north,1 kilometer west,1 kilometer south,and 2 kilometer east.How many total kilometers w

Georgia [21]

1 + 1 + 1 + 2 = 5

5 x 9 = 45

Therefore, the total number of km is 45.

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3 years ago

A cone has a volume of 567 cubic centimeters. What is the volume of a cylinder

monitta

Answer:

Dunno

Step-by-step explanation:

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3 years ago