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777dan777 [17]
2 years ago
7

Which is the value of this expression when a= -2 and b= -3?

Mathematics
1 answer:
madam [21]2 years ago
5 0

Answer:

d: 729/64

Step-by-step explanation:

Plug-in the variables

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3x=9y find slope and intercept
miv72 [106K]
Slope = ⅓
y-intercept = 0
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3 years ago
Suppose y varies directly with x. Write an equation if y = 4 when x = 0.4.
Roman55 [17]
Yes correct
0.04
step by step explanation:
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2 years ago
In a bag, there are 5 red marbles, 2 blue marbles, and 3 purple marbles. What is the probability of drawing a purple marble?
Kitty [74]

Answer:

3/10 or 30%

Step-by-step explanation:

Add all of the marbles: 5+2+3=10

Then use a fraction to represent the three purple marbles: 3/10

That porportion is your answer

7 0
1 year ago
Solve for v. -9/8 = v - 1/2
Usimov [2.4K]

Answer:

-  \frac{5}{8}

Step-by-step explanation:

-  \frac{9}{8}  = v -  \frac{1}{2}  \\  \\  \frac{1}{2}  -  \frac{9}{8}  = v \\  \\ \frac{4}{8}  -  \frac{9}{8}  = v \\  \\  \frac{4 - 9}{8}  = v \\  \\ v =  -  \frac{5}{8}  \\

3 0
3 years ago
A candle shop sells scented candles for $16 each and unscented candles for $10 each.The shop sells 28 candles today and makes $4
Aliun [14]
Lets call s the number of scented candles sold, and u the number of unscented candles sold and write as an equation the info provided in the problem:
16s + 10u = 400
s + u = 28
that is, the first equation synthesize the fact that the amount of unscented candles times its quantity plus the amount of scented candles times its quantity equals $400
and the second equation synthesize the fact that the number of scented and unscented candles add up to 28
Now you just need to solve the system of two linear equations with two unknowns to get the specific value of the scented and unscented candles.
3 0
3 years ago
Read 2 more answers
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