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Karo-lina-s [1.5K]
3 years ago
14

What is 5X minus Y equals six minus 2X plus Y equals eight

Mathematics
1 answer:
34kurt3 years ago
5 0

Answer:

x = 8/3, y = 22/3

Step-by-step explanation:

5x-y=6-2x+y=8

5x-y=8 --- 1

6-2x+y=8 --- 2

by solving 1 and 2, x = 8/3, y = 22/3

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What is the lcm of 36 and 78
pochemuha
36|2
18|2
9|3
3|3
1

78|2
39|3
13|13
1

LCM(36,78)=2^2\cdot3^2\cdot13=468

7 0
3 years ago
Harold brought 5 apples for $3.90.What is the unit price?
klio [65]

Answer:

.78

Step-by-step explanation:

3.90/5 = .78

6 0
3 years ago
On circle C points A and B are separated by an arc whose length is 18 centimeters. If the radius of C is 8 centimeters, what is
alex41 [277]

Answer:

2.25 radians

Step-by-step explanation:

First we need to find the length of the circunference, using the formula:

C = 2 * pi * r

Where r is the radius. Using r = 8, we have:

C = 2 * pi * 8 = 50.2655 cm

Now, to find the measure of the central angle related to that arc of 18 cm, we can use a rule of three, knowing that the whole circunference has a central angle of 2pi radians:

2pi rad -> 50.2655 cm

x -> 18 cm

x = 18 * 2pi / 50.2655

x = 2.25 rad

6 0
3 years ago
Help asap for brainliest
sineoko [7]

Answer:

282 ft

Step-by-step explanation:

Area of 2 triangles = 6+6

= 12 ft

Area of 3 rectangles = 90+90+90

= 270 ft

therefore

the surface area = 12 + 270

= <u>282 ft</u>

I think that I am right

4 0
2 years ago
A rectangle has a width of 4 units and a length of m units. Write an expression for the area of this rectangle.
Kipish [7]

Answer:

P=12, P=8,8, P=4,5

Step-by-step explanation:

P=4*m, P=area

If m=3, P=4*3=12

if m=2,2 P=4*2,2=8,8

if m=1/5 P=4*1/5=4/5

if P=11 then 4*m=11, m=11/4

The area of ​​the rectangle is 11 if m =11/4

7 0
3 years ago
Read 2 more answers
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