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Phoenix [80]
3 years ago
9

Witch expression represents the value of 5 nickels and x dimes

Mathematics
2 answers:
Kitty [74]3 years ago
7 0

Answer:

5(0.05) + 0.10x

Step-by-step explanation:

This would be correct because, first of all,  you have 5 nickels. The value of a nickel is 0.05, and you would then multiply that by 5. That's how we would get 5(0.05)

Next, we know the value of a dime is 0.10 (10 cents), but we don't know how many dimes there are. So, the unknown amount of dimes would be represented by x. Then, we multiply 0.10 by x.

We also want to add the two expressions, because of the word "and."

So, altogether, we would get 5(0.05) + 0.10x

Setler [38]3 years ago
4 0
10x+25 (expressions don't have equal signs)
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Convert 13pi/6 to a degree measure <br><br> A=390<br> B=2450.44<br> C=30<br> D=780
Burka [1]

Answer:

390 degrees

Step-by-step explanation:

The conversion factor is 180/pi

13 pi /6 * 180/pi

13/6 *180

390

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3 years ago
Solve x. 10(2x - 4) = 100x
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Answer:

x=1/2

Step-by-step explanation:

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There is an automatic fee of $10 just to enter the parking lot, and when she leaves the lot, she will have to pay an additional
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3 years ago
1. Find the length of X (in the picture) plssss I need help.​
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3 0
3 years ago
Sarah saved $12.75 every week for a number of weeks, w. She received an additional $25 during the last week in which she saved m
Umnica [9.8K]

Answer:

12.75w + 25 = 114.25

w = 7

Step-by-step explanation:

since sarah is receiving 12.75 each week for a number of weeks, w (we don't know its value yet)  we know that first part of the equation: that 12.75 is the coefficient next to w. Then we have the extra 25, so we know that adding 12.75w and 25 would give us sarah's total amount, which is 114.25.

to find out what w represents, we have to solve for it. solving for w means isolating it on one side. so, what we can do first is subtract 25 from both sides. that would then make the equation:

12.75w = 89.25

now, we have only one step left to isolating w, and that's to get 12.75 on the other side somehow. since we're multiplying 12.75 with w, and we're applying additive inverse properties, meaning the opposite of what is happening to cancel it out on the side it's in, we would divide 12.75 on both sides. in the left, 12.75 would cancel out, and in the right, we would divide 89.25 by 12.75. the quotient is 7.

now there's nothing left to take out to isolate w, so we have:

w = 7

sarah saved up for 7 weeks.


3 0
3 years ago
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