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3 years ago

Shop only had 2 types of stamps left using

Mathematics

1 answer:

saveliy_v [14]3 years ago

7 0

Answer:

{3¢, 28¢} or {4¢, 19¢} or {7¢, 10¢}

Step-by-step explanation:

54 = 1×54 = 2×27 = 3×18 = 6×9

Possible values of the stamps are 1 more than the values of a pair of factors. Of course, a 2¢ and 55¢ stamp will not permit paying 54¢ in postage, so that combination won't work. However, other pairs that will work are ...

3¢ and 28¢
4¢ and 19¢
7¢ and 10¢

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Twice a number increased by 8 is less than -4

stepladder [879]

Answer:

Twice a number : 2x

increased by : +

8 : 8

is equal to : =

the number : x

increased by : -

-4 : -4

The answer is 2x+8 < -4

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3 years ago

Marietta was given a raise of $0.75 per hour, which gave her a new wage of $12.25 per hour. Write and solve an equation to deter

guajiro [1.7K]

$0.75+a=12.25
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3 years ago

Read 2 more answers

The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mea

Archy [21]

Answer:

Step-by-step explanation:

Given data:

$\mu = 473$

standard deviation is $\sigma= 28$

As distribution is normal in shape and values are symmetrical

The standard deviation rule says that 95% of observation lies between the second standard deviation of the mean

so, approximately only 5% of observation lies outside the interval and normal shape is symmetric. hence approximately 0.15% of observation lies above the interval

$= \mu + 2\times \sigma$

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almost 0.15% of students spent more amount is 529

6 0

2 years ago

Andrea can rollerblade faster than most skateboarders, she can go 250 feet in 10 seconds. At this rate, how many miles can she r

blsea [12.9K]

Answer:

She can ride 17.045 Miles in one hour.

Step-by-step explanation:

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3 0

2 years ago

PLEASE, I REALLY NEED YOUR HELP!!

Delicious77 [7]

Answer:

|x-5|=2

Step-by-step explanation:

1- Find the mid value between the given numbers 3 and 7

(3+7)/2= 10/2 = 5

2- Find the difference btween the mid value (5) and any of the two given numbers (3 or 7). Use the absolute value for the difference.

|5-3|= 2 or |7-5|=2

3- Arrange the absolute equation like this:

|x-mid value from step 1|= absolute difference from step 2

|x-5|=2

4- Double check the answer with the given values 3 and 7 using our equation |x-5|=2

|3-5|=2 correct

|7-5|=2 correct

7 0

2 years ago