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Mekhanik [1.2K]
3 years ago
11

(9m-12)+(-3^2+15-5m)

Mathematics
1 answer:
uranmaximum [27]3 years ago
4 0

Answer: 4m - 6

Step-by-step explanation:

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Plz help! Sam had an appointment 90 miles away from home at 2pm. He drove there at 60 mph, and was 15 minutes late. What time di
never [62]

Answer:

12:45 pm

Step-by-step explanation:

First we find out the amount of time it takes to drive 90 miles at 60 mph.

speed = distance/time

time * speed = distance

time = distance/speed

time = 90 miles / 60 mph

time = 1.5 hour = 90 minutes

It takes 1.5 hour, or 90 minutes, to drive 90 miles at a speed of 60 mph.

To get there at 2:00 pm, he should have left at 12:30 pm.

He got there 15 minutes late, so he must have left 15 minutes late.

He left at 12:45 pm.

Answer: 12:45 pm

3 0
3 years ago
I will mark u brainliest please help
musickatia [10]

Answer:

30+(2x+7)+63=180(sum of angles of triangle )

30+2x+7+63=180

2x+100=180

2x=180-100

x=80/2

x=40

6 0
3 years ago
Read 2 more answers
Two 2 1/2 inch plastic strips and two 5 1/3 inch plastic strips are used to form a rectangle. What is the perimeter of the recta
svp [43]
In this question the given information's should be closely noted. The length and width of the perimeter are already given. Based on those information's the answer to the question can be easily deduced.
Length of the rectangle = 2 1/2 inch
                                       = 5/2 inch
Width of the rectangle = 5 1/3 inch
                                         = 16/3 inch
Then
Perimeter of a rectangle = 2 ( Length + Width)
                                        = 2 [(5/2) + (16/3)]
                                         = 2 [ (45 + 32)/6]
                                         = 2 * (77/6)
                                         = 77/3 inch
                                         = 25 2/3 inch
So the perimeter of the rectangle in question is 25 2/3 inch. I hope the procedure is clear to you.
5 0
3 years ago
Read 2 more answers
2. In the figure, what is m ZC? (1 point)<br> 15°<br> 35°<br> 50°<br> 65°
Doss [256]

Answer:

35°

Step-by-step explanation:

By the property of intersecting secants outside of a circle.

m\angle C = \frac{1}{2} \times (100° - 30°)\\\\m\angle C = \frac{1}{2} \times 70°\\\\\huge \red {\boxed {m\angle C = 35°}}

3 0
3 years ago
What is the best name to describe an object that has four right angles, the opposite sides are parallel, and it has four equal s
MAXImum [283]

Answer:

D-Square

Step-by-step explanation:

That describes a square, so the answer a square.

6 0
3 years ago
Read 2 more answers
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