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lapo4ka [179]
3 years ago
14

NEED HELP ASAP WILL GIVE MEDAL FOR CORRECT ANSWER

Mathematics
1 answer:
Sati [7]3 years ago
4 0

Answer:

The correct option is c.

Step-by-step explanation:

It is given that Judy completes a puzzle by herself, it takes her 3 hours.

The part of puzzle completed by Judy in one hour is \frac{1}{3}.

Rate is a part of word done by a person in one unit of time.

It means the Judy's rate to complete the puzzle is \frac{1}{3}.

Therefore the correct option is c.

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Use the distributive property to remove the parentheses. (-2+2w+4w)(-7)
kotegsom [21]

The parentheses of the expression (-2+2w+4w)(-7) is removed using the distributive property and the resultant expression is -14-42w.

<h3>What is distributive property?</h3>

The distributive property says that the product of a number and sum of two numbers is equal to the addition of the product of that number with the individual number of the sum.

c×(a+b)=ac+ab

The given expression in the problem is,

(-2+2w+4w)(-7)

Now, use the distributive property to remove the parentheses as,

(-2+2w+4w)(-7)

-2×-7+2w×-7+4w×-7

-14-14w-28w

-14-42w

Hence, the parentheses of the expression (-2+2w+4w)(-7) is removed using the distributive property and the resultant expression is -14-42w.

Learn more about the distributive property here;

brainly.com/question/11279503

#SPJ1

8 0
2 years ago
What is a coefficient for (4x-2)
zubka84 [21]
The coefficient in (4x-2) is the -2
5 0
3 years ago
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What is 0.275 0.20 0.572 and 0.725 greatest to least
Andru [333]
.725 , .572 , .275, .2
You look at the first decimal place to see which is the greatest. 7 is greater than 5 and 2 so it's first. Then 5 is greater than 2 so it is next. For the last two numbers since 2 is the same value you look at the next decimal place. Since 7 is greater than 0 it comes next!
6 0
3 years ago
A gold mine has two​ elevators, one for equipment and another for the miners. The equipment elevator descends 4 feet per second.
Ad libitum [116K]

Let d_m,\ d_e represent the depth of the miner and equipments elevator, respectively. We know that equipment elevator descends with a velocity of v_e = 4 feet per second, and the miners one descends with a velocity of v_m = 15 feet per second.

If we start counting time (t=0) when the equipment elevator begins to descend, after t seconds its depth will be

d_e(t) = v_et = 4t

On the other hand, the miner elevator follows the same rule, but we have to use its velocity, and remember that it starts with a delay of thirty seconds:

d_m(t) = v_m(t-30) = 15(t - 30)

Now, we have to wait the 30 seconds of delay, and then another 14 seconds. This means that we want to know the positions of both elevators when t = 44. Let's plug this value into the two equations:

d_e(44) = 4\cdot 44 = 176

d_m(44) = 15(44-30) = 15\cdot 14 = 210

So, the equipment elevator is 176 feet deep, and the miner elevator is 210 feet deep, and thus this is the deeper one.

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3 years ago
What is 145x 587 = blank help me plz
EleoNora [17]
The answer is 85,115.
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2 years ago
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