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IceJOKER [234]
2 years ago
5

What is the rate of change (slope), given these two points (1,-3) and (7,-6)

Mathematics
1 answer:
nadezda [96]2 years ago
5 0

Answer: -1/2

Step-by-step explanation: to find slope, use the equation (y2-y1) / (x2-x1)

(-6 - -3) / (7 - 1)

-3 / 6

= -1/2

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3 years ago
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What is the height of the support beam?
Marysya12 [62]

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36 meters

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There are three blue marvels and five red marvels in a bag you randomly select a marble and put it it back in the back if you do
olga nikolaevna [1]

Answer:

25 times

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2 years ago
① 5J+2S =12.20 ② 5J+ 10S =15.80 elimination method
hram777 [196]

Answer:

<h2>S = 9/20</h2><h2>J = 113/50</h2>

Step-by-step explanation:

5J +2S =12.20 ........(1)\\5J+10S=15.80......(2)\\Multiply \:equation \:(1)\:by\:the\:coefficient\:of\:x\:in equation\:(2)\\\\Multiply\:equation(2)\: by\: the\: coefficient\:of \:x\: in \:equation (1)\\\\5J +2S =12.20 ........(1) \times 5\\5J+10S=15.80......(2)\times 5\\\\25J+10S=61......(3)\\25J+50S = 79......(4)\\Subtract\:equation\:(4)\:from\: equation\: (3)\\-40S =-18\\\frac{-40S}{-40}=\frac{-18}{-40}\\  S = 9/20\\

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4 0
3 years ago
When Janice is 20 years old; her brother is half her age. When Janice is 30 years old; how old is her brother?
Snezhnost [94]
20 years old
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3 years ago
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