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Alona [7]
3 years ago
9

A soduim isotpe, Na24, has a life of 15 hours

Mathematics
1 answer:
masha68 [24]3 years ago
4 0
What's the question?
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What is the relationship among direct variation,lines,rates of change, and slope?
JulsSmile [24]
A direct variation is a proportional equation. Such as:

For every 3 cookies, linda gets 1 glass of milk. The equation for this is y=3x where y is the glasses and x is the cookies. this is a direct variation. It also has a linear line. Linear means straight. Rate of change and slope are the exact same thing. They are the value of 'm' in y=mx+b
5 0
3 years ago
Solve the system of equations displayed in the picture.
bagirrra123 [75]

The answer is D) (-1,-12)

Reason:

1) substitute 2x-10 for y in y=4x-8

2) 2x-10=4x-8

3) -2x-10=-8

4) -2x=2

5) x=-1

6) substitute -1 for x in y=2x-10

7) y=(2)(-1)-10

8) y=-12

Answer

x=-1 and y=-12

7 0
3 years ago
Can someone help me solve this question !
Flura [38]

Answer:

m= 2/3

Step-by-step explanation:

up 2 right 3

y= 2/3x-2

8 0
3 years ago
Read 2 more answers
1. The scale on a map reads 3 inches = 25 miles.
KonstantinChe [14]

Answer:

D. 62.5

Step-by-step explanation:

2 ways

1.

7.5 ÷ 3 = 2.5

25 times 2.5 = 62.5

2.

3/7.5 = 25/x

3x = 187.5

187.5 ÷ 3 = 62.5

3 0
2 years ago
Compare the decimals 6,324.50 and 6,324.5.
nignag [31]
The answer is A, hope this helps brooo
7 0
3 years ago
Read 2 more answers
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