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matrenka [14]
2 years ago
15

PLEASE HELP IM STUCK

Mathematics
1 answer:
Andreyy892 years ago
3 0

Answer:

23

Step-by-step explanation:

The question gives the first equation:

0.05N + 0.10D = 2.20

It can be rewritten as:

0.05$ times the number of nickels plus 0.10$ times the number of dimes is equivalent to $2.20.

Notice that 0.05$ or 5 cents is equivalent to one nickel and 0.10$ or 10 cents is equivalent to one dime.

The question asks for N+D. We know that N stands for the number of nickels Daniel has and D stands for the number of dimes Daniel has. We also know that Daniel <u>only</u> has dimes and nickels in his pocket. Therefore N+D most be equivalent to the <u>total number of coins</u>, which is given in the question to be equal to 23 coins.

Therefore...

N+D = 23

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Your part time job pays you $14/h. You work approximately 12 hours/week.
kirill115 [55]

Answer:

  1. <u>BOX 1 </u>=  672.00

(14 * 12 = 168

168 * 4 = $ 672 )

     2. <u>BOX 2</u> = 282.95

(Cell phone= $45 A MONTH

Eating outside = $50 A MONTH

12 .50 * 4   = 50   (4 WEEKS A MONTH )

Transportation =  131.2 A MONTH

32.80 * 4 = 131.2  (4 WEEKS A MONTH )

Movie =  $16.75 A MONTH

Charity = $ 40 A MONTH

10 * 4  (4 WEEKS A MONTH )

<u> MONTHLY EXPENSE </u> = 45 + 50 + 131.2 + 16.75 + 40

<u> MONTHLY EXPENSE </u> = 282.95 )

      3. <u>BOX 3</u> = 389.05

Money that can be saved = Monthly income - Monthly expense

Money that can be saved = 672 -  282.95

                                          = 389.05

<h2><em><u>please give brainliest </u></em></h2>
4 0
3 years ago
If k = -5 find the value of -7k? Please explain step by step or show work on piece of paper to get marked.
Mnenie [13.5K]

Answer:

35

Step-by-step explanation:

Given k=-5

Substitute into the equation given

-7(-5) = 35

8 0
2 years ago
Which unit rate is the lowest price per ounce? Choice A: 6 ounces of raisins for $2.98 Choice B: 13 ounces of raisins for $7.18
pishuonlain [190]

Answer:

Choice B.

Step-by-step explanation:

2.98 divided by 6 = 0.4966∞ (rounded to the nearest hundredths) 0.50

7.18 divided by 13 =  0.5523076923 (rounded to the nearest hundredths) 0.55

The difference is 5 cents.

~~~Hope this helps~~~ :)

5 0
3 years ago
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Which of the following is a source of income?
Sav [38]

Answer:

B. Invesment

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8 0
3 years ago
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A researcher is conducting a study and you are hired to help them analyse their data. They have already looked at scatterplots a
zhenek [66]

Answer:

There is a strong positive relationship between sales of firewood and cough drops.

Step-by-step explanation:

Correlation Coefficient

  • Correlation is a technique that help us to find or define a relationship between two variables.
  • It is a measure of linear relationship between two quantities.
  • Values between 0 and 0.3 tells about a weak positive linear relationship, values between 0.3 and 0.7 shows a moderate positive correlation and a correlation of 0.7 and 1.0 states a strong positive linear relationship.

Thus, a coefficient correlation of 0.85 between weekly sales of firewood and cough drops over a 1-year period suggest that there is a strong positive relationship between sales of firewood and cough drops.

Thus, as the sale of firewood increase there is an increase in the sale of cough drops.

3 0
3 years ago
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