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SpyIntel [72]
3 years ago
7

Wich is the unknown number? which property did u use?

Mathematics
2 answers:
Gwar [14]3 years ago
3 0
The answer is 9. because... (8+9) + 32= 49
Airida [17]3 years ago
3 0
The answer is 9 it is actually very easy just use the operations there. Also do you go to Ps68Q ?
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3 3/5+ 4 1/8=<br> PLS PLS PLS PLS ANSWER
Jet001 [13]
I think the answer is 7.725 so sorry if I’m wrong but see if that answer is correct
5 0
2 years ago
Need help with all of these!!! ASAP!!<br><br> 15, 16, 17, 18!!!
vodomira [7]

Answer:

15. A

16. B

17. B

18. C

Step-by-step explanation:

8 0
3 years ago
A wheel with radius 1 foot makes 1 revolution in 4 seconds. What is the linear velocity, in feet per second, of a point on the e
Alona [7]

In one revolution of the wheel, a point on the edge travels a distance equal to the circumference of the wheel.

The wheel has radius 1 ft, so its circumference is 2π (1 ft) = 2π ft.

Then the point has a linear speed of

(1/4 rev/s) * (2π ft/rev) = 2π/4 ft/s = π/2 ft/s

5 0
3 years ago
Find x and Y pls help
lisabon 2012 [21]

Answer:

Step-by-step explanation:

Comment

The angle supplementary to x and 3x are equal.

Supplementary angles = 180

Solution

x + 3x = 180

4x = 180                  Divide by 4

4x/4 = 180/4

x = 45

The angle supplementary to x is 3x

3x = 3*45

3x = 135

This angle is vertically opposite y. Vertically opposite angles are equal. So  y = 135

Answer

x = 45

y = 135

3 0
1 year ago
9x - 7x + 10 = 18; 3 plz help it's solution to equations. ​
zhenek [66]

Answer:

9x - 7x + 10 = 18 \\ x(9 - 7) = 18 - 10 \\ 2x = 8 \\ x =  \frac{8}{2}  \\  \\ { \boxed{ \boxed{x = 4}}}

3 0
2 years ago
Read 2 more answers
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