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4 years ago

Solve the equation for x. Plz help

Mathematics

1 answer:

Art [367]4 years ago

7 0

Answer:

C) 3

Step-by-step explanation:

2(3x-2)=14

6x-4=14

+4 +4

6x=18

6 6

x=3

<h2>I hope that helped!!!</h2>

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39. Which phrase is represented by 2(9-n)+3 ?

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Answer:

Step-by-step explanation:

It correctly describes it

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3 years ago

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There is a total of $39.55. There are 3 times as many dimes as nickels, how many of each coin type was collected ?

katovenus [111]

Number of dimes collected is 339 and number of nickels collected is 113

Solution:

Given that There is a total of $39.55

There are 3 times as many dimes as nickels

To find: Number of dimes and nickels collected

Let "d" be the number of dimes collected

Let "n" be the number of nickels collected

We know that,

1 dime = $ 0.10

1 nickel = $ 0.05

From given information,

There are 3 times as many dimes as nickels

So, we get

Number of dimes = 3(number of nickels)

d = 3n

Given that there is total of $ 39.55

number of dimes collected x value of 1 dime + number of nickels collected x value of 1 nickel = $ 39.55

$3n \times 0.10 + n \times 0.05 = 39.55\\\\0.3n + 0.05n = 39.55\\\\0.35n = 39.55\\\\n = \frac{39.55}{0.35}\\\\n = 113$

Substitute n = 113 in d = 3n

$d = 3(113) = 339$

Summarizing the results:

number of dimes collected = 339

number of nickels collected = 113

4 0

3 years ago

5 Solve for z in the literal equation - (z +11) = y. 7 Z=

Vsevolod [243]

Answer:

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Alenkasestr [34]

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dalvyx [7]

Answer:

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Step-by-step explanation:

Part a

Think of this in terms of how many "units" can the total paper be cut into. Easiest way to keep track of units is by their area. In other words, take the total area and see how many unit areas fit into it:

Number of units = total area / unit area

N = (85 x 60) / (20 x 10)

N = 5100 / 200

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Therefore the greatest number of pieces the paper can be cut into is 25 units (the 0.5 doesn't count since it's not a full pieces).

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Again, back to units. This time the "total" is 100, and our unit size is 25.5. So:

Number of units = total gifts / gifts per unit

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