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sp2606 [1]
3 years ago
9

Which algebraic expression represents the phrase “four times a number”? 4 + c c - 4 mc019-1.jpg 4c

Mathematics
2 answers:
Fofino [41]3 years ago
5 0
Four times a number....

4c <== this is basically saying 4 times an unknown number (c)
IgorC [24]3 years ago
5 0
Which algebraic expression represents the phrase “four times a number”?
the answer is 4c
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Nina has some nickels and 9 pennies in her pocket. Her friend, Maurice has twice as many nickels as Nina. Together these coins a
algol13

So Maurice would have 2N nickels  

Total number of coins is N + 2N + 9 = 3N + 9  

Each nickel is 5 pennies  

3N of nickels = 15N pennies  

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Their worth is 84 cents  

15N + 9 = 84  

15N = 75  

N = 75/15 = 5  

N = 5  


This means Nina has 5 nickels.

4 0
3 years ago
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Tomtit [17]

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6 0
3 years ago
How do I do this cause I don’t get it
mars1129 [50]

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3 years ago
A lightbulb has a normally distributed light output with mean 5000 end foot-candles and standard deviation of 50 end foot-candle
Blizzard [7]
To find the specification limit such that only 0.5% of the bulbs will not exceed this limit we proceed as follows;
From the z-table, a z-score of -2.57 cuts off 0.005 in the left tail; given the formula for z-score
(x-μ)/σ
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8 0
3 years ago
Simplify the expression. 8(s-1)
TEA [102]

Answer:

8s-8

Step-by-step explanation:

Use the distributive property: #(a-b) = #*a - #*b. In this case 8s - 8.

Hope it helps!

6 0
3 years ago
Read 2 more answers
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