0.275÷0.25 with working<br> plsss its very urgent!!!!

Maddie mailed y letters in january. she mailed 3 times

Digiron [165]

The expression which shows the amount of money, in dollars Maddie spent on mailing letters in March is 3.7 +0.74 y.

Given Maddie mailed y letters in January. She mailed 3 times as many letters in February. In March she mailed 10 letters more than half of what she mailed in January and February.

Expression is combination of numbers, symbols, fraction, coefficients which are not found in equal to form.

Letters mailed in January=y

Letters mailed in February=3y

Letters mailed in March=10+(y+3y)/2

=10+2y

Amount of mailing of 1 letter=$0.37.

Amount of mailing of letters in March=0.37(10+2y)

=3.7+0.37*2y

=3.7+0.74y

Hence the expression which shows the amount of letters mailed in March is 3.7+0.74 y.

Learn more about expression at brainly.com/question/723406

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8 0

1 year ago

9/5 times a number plus 6 is 51 ?

sveticcg [70]

- so 9/5 the number is 51-6=45.
- the number is 45 divided by 9/5
- the number is 45 times 5/9
- the number is 25

6 0

3 years ago

Read 2 more answers

Lester rents his vacation home for 6 months and lives in the home during the other 6 months of 2018. The gross rental income fro

zepelin [54]

Answer:

$ 500

Step-by-step explanation:

Data provided:

Gross rental income from the home = $ 4,500

Real estate taxes for the year = $ 800

Interest per year = $ 3,000

Utilities and maintenance expenses = $ 2,200

Depreciation expense = $ 4,000

Now, for 6 months

Real estate taxes for the year = $ 800 × 0.5 = $ 400 (0.5 as the for half a year i.e 6 months)

Interest per year = $ 3,000 × 0.5 = $ 1500

Utilities and maintenance expenses = $ 2,200 × 0.5 = $ 1,100

Depreciation expense = $ 4,000 × 0.5 = $ 2,000

Thus,

Total expenses for 6 months = $ 400 + $ 1500 + $ 1,100 + $ 2,000 = $ 5000

Therefore,

Net loss from renting his vacation home = Total expenses - Gross income

or

Net loss from renting his vacation home = $ 5000 - $ 4500 = $ 500

6 0

3 years ago

Describe how to simplify the expression StartFraction 3 Superscript negative 6 Baseline Over 3 Superscript negative 4 Baseline E

Minchanka [31]

Answer:

Keep the base the same and then subtract the exponents.

Step-by-step explanation:

According to one of the law of indices, for given values a, m and n;

a^m/a^n = a^(m-n)

The base value which is a is maintained and the difference of exponents are taken. In indices division becomes subtraction.

Now given the expression

3^-6/3^-4

As we can see, both the numerator and denominator has the same base which is 3, therefore we will keep the base and take the difference of its exponents according to the law above:

3^-6/3^-4 = 3^(-6-(-4))

= 3^(-6+4)

= 3^-2

= 1/3^2

= 1/9

3 0

3 years ago

Read 2 more answers

For a sample of n=64, the probability of a sample mean being less than 20.5 if u = 21 and sigma = 1.31 is (Round to four decim

Svetlanka [38]

Answer:

The mean is usual

Step-by-step explanation:

We have that the mean (m) is equal to 21, the standard deviation (sd) = 1.31 and the sample size (n) = 64

They ask us for P (x <20.5)

For this, the first thing is to calculate z, which is given by the following equation:

z = (x - m) / (sd / (n ^ 1/2))

We have all these values, replacing we have:

z = (20.5 - 21) / (1.31 / (64 ^ 1/2))

z = -3.05

With the normal distribution table (attached), we have that at that value, the probability is:

P (z <-3.05) = 0.0002

The mean is usual because P (x> 20.5) = 1 - P (x <20.5) = 1 - 0.0002 = 0.9998 is a fairly high probability.

6 0

3 years ago

0.275÷0.25 with working plsss its very urgent!!!!