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Stella [2.4K]
3 years ago
8

Jerome bought 2 postcards and received $1.35 in change back in quarters and dimes. If he got 6 coins back, how many of each coin

did he get?
Mathematics
2 answers:
iogann1982 [59]3 years ago
4 0

Jerome would get 5 quarters and a dime back.

antoniya [11.8K]3 years ago
3 0

Answer:5 quarters and 1 dime

Step-by-step explanation:

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BRAINLIESTTT ASAP! PLEASE HELP ME :)
dsp73

Answer:

14x^(2)/15) / 7x

= (14x^(2)/15) * (1/7x)

= 14x^(2)/15*7x

= 14x^(2)/105x

= 2x/15 (Divide both the numerator and denominator by 7x)

Therefor, each person would receive 2x/15 dollars.

8 0
3 years ago
I need help with this
Harman [31]

By finding the proportional relation, we can get the complete table:

time (hours)    rain (inches)

1.43                               1

1                                0.7

5                               3.5

9.5                              6.56

x                                0.7*x

<h3></h3><h3>How to complete the given table?</h3>

Here we need to complete the table:

time (hours)    rain (inches)

a                               1

1                                b

5                               3.5

9.5                              c

x                                d

We know that the rain and the time must meet a proportional relationship, so if y is the rain in inches and x is the time in hours, the relation is:

y = k*x

Where k is the constant of proportionality.

We know that after 5 hours, 3.5 inches of rain have fallen, then we can replace that in the above formula:

3.5  = k*5

3.5/5  = k

0.7= k

Then the proportional relation is:

y = (0.7)*x

Now let's complete the table. On the first pair we have:

x = a, y = 1

Replacing that in the proportional relation we can find the value of a.

1 = 0.7*a

1/0.7 = a = 1.43

For the next pair, we have x = 1, y = b

b = 0.7*1 = 0.7

the next pair is x = 9.5, y = c

c = 0.7*9.5 = 6.65

The last pair is just the prooortional relationship:

d = y = 0.7*x

Then the complete table is:

time (hours)    rain (inches)

1.43                               1

1                                0.7

5                               3.5

9.5                              6.56

x                                0.7*x

If you want to learn more about proportional relationships:

brainly.com/question/12242745

#SPJ1

8 0
2 years ago
3 times 80,000,00 equal what
RoseWind [281]

Answer:

240000000

Step-by-step explanation:

3*80000000

=240000000

7 0
3 years ago
Read 2 more answers
The mean GPA for 127 residents of the local apartment complex is 1.6. What is the best point estimate for the mean GPA for all r
madam [21]

By the Central Limit Theorem, the best point estimate for the mean GPA for all residents of the local apartment complex is 1.7.

The Central Limit Theorem established that, for a normally distributed random variable X, with mean and standard deviation, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean  and standard deviation ;

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

The sample of 112 residents has a mean GPA of 1.7.

By the Central Limit Theorem, the best point estimate for the mean GPA for all residents of the local apartment complex is 1.7.

Learn more about Mean:

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4 0
2 years ago
Please quick responses!!
mamaluj [8]

Answer:

6 7/8 inches

Step-by-step explanation:

The first thing to do is to get the measurements in either inches or feet.  You can't have both.  Let's go from feet to inches.

3 feet = 36 inches

13.75 feet = 165 inches

Now we can set up a proportion to solve for the number of inches the model is:

\frac{model}{real}:\frac{1.5}{36}  =\frac{x}{165}

Now we can cross multiply:

36x = 247.5 so

x = 6.875 or 6 7/8 inches

4 0
3 years ago
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