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patriot [66]
3 years ago
7

X/6 + 7 = -11 please show your work.

Mathematics
1 answer:
lana [24]3 years ago
5 0

Answer:

x= -108

Step-by-step explanation:

x/6 + 7 = -11

x/6= -11-7

x/6= -18

x= -18*6

x= -108

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On a chilly day in New York, the temperature changed at -4 degrees per hour. How many hours did it take for the temperature to c
Aleks04 [339]

Answer:

9 hours

Step-by-step explanation:

36 degrees total /4 degrees per hour = 9 hours

6 0
3 years ago
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Superman needs to save Lois from the clutches of Lex Luther. After flying for 15 seconds, he is 2100 meters from her. Then at 18
posledela

Part A

x = time in seconds that have gone by

y = distance in meters Superman is away from Lois

"After flying for 15 seconds, he is 2100 meters from her" means we have the point (x,y) = (15, 2100)

"at 18 seconds he is 1980 meters from her" tells us we have a second point (x,y) = (18,1980)

--------

Find the slope of the line through these two points

m = (y2-y1)/(x2-x1)

m = (1980-2100)/(18-15)

m = (-120)/(3)

m = -40

The slope is -40 which means Superman is getting 40 meters closer each second. I.e, the distance is dropping 40 meters per second

--------

Use one of the points and the slope to find the y intercept b

y = mx+b

2100 = (-40)*15 + b

2100 = -600 + b

2100+600 = b

b = 2700

This is the starting distance Superman is away from Lois

--------

Since m = -40 and b = 2700, we know the y = mx+b equation becomes y = -40x+2700.

Replace x with s, replace y with m. We now have m = -40s+2700

---------

<h3>Final Answer:  m = -40s+2700</h3>

============================================

Part B

Plug s = 6 into the equation we found for part A. Then simplify.

m = -40s+2700

m = -40*6+2700

m = -240+2700

m = 2460

---------

<h3>Final Answer: 2460 meters</h3>
7 0
2 years ago
Suppose you toss a coin 100
Mademuasel [1]
I searched the answer up becuase I didn’t know how they got the number but I hope this helps

8 0
3 years ago
8x + 8 = 180 help me please
Alex_Xolod [135]

Answer:

Step-by-step explanation:

8x=180-8

8x=172

8x/8=172/8

x=21.5

7 0
3 years ago
Read 2 more answers
Carla is arranging square patches of grass on her rectangular lawn her lawn is 10 yards wide and 3 and 1/2 yards long how many s
mezya [45]

Answer:

I don't know if this is correct but wouldn't it be 560?

Step-by-step explanation:

If you have 10 on one side, you divide 10 by 1/4 to get 40. So you need 40 blocks to fill one side, and 3 1/2 on the other only needs 14. 14*40=560.

5 0
3 years ago
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