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spayn [35]
3 years ago
6

PLEASE HELP ASAP!!

Mathematics
1 answer:
34kurt3 years ago
4 0

Answer:

$123

Step-by-step explanation:

230/20=11.5

11.5x2=23

23+100=123

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The expression 1.7j-3.4 factored is?
marshall27 [118]
1.7(j-2)


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3 0
3 years ago
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
3 years ago
Drag and drop the correct answer into each box to complete the proof.
Rudiy27
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4 0
3 years ago
I will make Brailiest, DO IT STEP BY STEP PLZ! Mrs. Fisher jogs every morning. On average, it takes her 7 ½ minutes to run one m
Kazeer [188]

Answer:

22 1/2

Step-by-step explanation: 7 1/2 x3 = 22 1/2

proof 7 1/2 +7 1/2 +7 1/2 = 22 1/2

6 0
2 years ago
Micah's Family ate some of the two pies that he baked. which number represents the amount of pies that is left​
steposvetlana [31]

Answer:

The answer is 6/8

Step-by-step explanation:

6/8 is the only logical answer because you need to have an answer that is less than one, 8/6 evens out to 1 1/3, 6/2 evens out to 3, and 8/4 evens out to 2. 6/8 is the only fraction that is less than one.

4 0
3 years ago
Read 2 more answers
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