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3 years ago

a spool holds 6.75 meters and a craft club buys 21 spools. what is the total cost if the ribbons costs 2 dollars per meter?

1 answer:

3 0

● To do this, you need to multiply 6.75 by 21 to find out how many meters are in all. 6.75×21 is 141.75

● Next you multiply 141.75 by 2 to see how much it costs which is 283.5

● Since we're dealing with money, it would have two place values so we add a zero and we get $283.50

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A patrolman gives a driver a speeding ticket if the driver’s speed is greater than 15% over the posted speed limit. If the speed

daser333 [38]

Answer:

No faster than 46 mph

Step-by-step explanation:

40*.15=6

6+40=46

(This is assuming they can go 15% over the speed limit and not that the car needs to be below 15% over the soeed limit)

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4 years ago

What is 20:50 (Equivalent Ratios)

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Answer: 20 : 50 (m1 = 1) 40 : 100 (m2 = 2) 60 : 150 (m3 = 3) 80 : 200 (m4 = 4) 100 : 250 (m5 = 5) . Bababoi

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Dafna1 [17]

I’m just gonna guess but I think 6

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The equation

ra1l [238]

<h2>Explanation:</h2>

Let's use a trial and improvement method to find this solution.

Step 1. Let's choose x = 8.5

Substituting into the equation:

$(8.5)^2+ 3(8.5) - 94=0? \\ \\ 72.25+25.5-94=0? \\ \\ 3.75\neq 0$

Step 2. Let's choose x = 8.4

Substituting into the equation:

$(8.4)^2+ 3(8.4) - 94=0? \\ \\ 70.56+25.2-94=0? \\ \\ 1.76\neq 0$

Step 3. Let's choose x = 8.3

Substituting into the equation:

$(8.3)^2+ 3(8.3) - 94=0? \\ \\ 68.89+24.9-94=0? \\ \\ -0.21\neq 0$

Since the sign of the equation changes from positive to negative when evaluating from 8.4 to 8.3, then x = 8.3 seems to be a reasonable value. Finally, the solution to 1 decimal place is:

$x=8.3$

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3 years ago