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Reil [10]
3 years ago
9

Sonji has $5.25 in nickels and dimes . The coin value can modeled by the equation 0.10+0.05n=5.25, where d represents the number

of dimes and n represents the number of nickels . If sonji has 21 dimes, how many nickels does she have ?
Mathematics
1 answer:
Lyrx [107]3 years ago
6 0
63

.10d + .05n = 5.25

.10(21) + .05n = 5.25

2.1 + .05n = 5.25

.05n = 3.15

n = 3.15/.05

n = 63
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Helen [10]

The value of "x" is 14400 dollars that will make their weekly pay the same

<em><u>Solution:</u></em>

Given that,

<em><u>Brandon is paid $235 per week plus 6% of his total sales in dollars, x, which can be represented by g (x) =235 + 0.06x</u></em>

g(x) = 235 + 0.06x ----- eqn 1

<em><u>Nolan is paid $667 per week plus 3% of his total sales in dollars, x, which can be represented by f(x ) = 667 + 0.03x</u></em>

f(x) = 667 + 0.03x ----------- eqn 2

<em><u>Determine the value of x, in dollars, that will make their weekly pay the same</u></em>

For their weekly pay to be same, g(x) = f(x)

235 + 0.06x = 667 + 0.03x

Move the variables to one side and constants to other side

0.06x - 0.03x = 667 - 235

0.03x = 432

x = 14400

Thus value of "x" is 14400 dollars that will make their weekly pay the same

6 0
3 years ago
Cam and Madison were investing money into two different accounts. They both invested $550
Arlecino [84]

Answer:

After 5 years, Cam's account will have $ 616.04 while Madison's account will have $ 638.53.

Step-by-step explanation:

Given that Cam and Madison were investing money into two different accounts, both investing $ 550 each, and Cam invested into an account at an annual interest rate of 2.7% compounded monthly while

Madison invested into an account that had an annual interest rate of 3% compounded quarterly, to determine the balances of both accounts after 5 years, the following calculations must be performed:

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X = 550 (1 + 0.027 / 12) ^ 5x12

X = 550 (1 + 0.027 / 12) ^ 60

X = 616.04

Madison

X = 550 (1 + 0.03 / 3) ^ 5x3

X = 550 (1 + 0.03 / 3) ^ 15

X = 638.53

Thus, after 5 years, Cam's account will have $ 616.04 while Madison's account will have $ 638.53.

4 0
3 years ago
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Zepler [3.9K]

Answer:

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Step-by-step explanation:

We need to read the graph to determine the answer.

The input is 10 hours

Using the x, go up until you hit the red line and read the y value

The y value is 100 miles

3 0
1 year ago
(12) - (23 +131) =<br> Express your answer in the form (a + bi),
4vir4ik [10]

Answer:

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Step-by-step explanation:

First solve parenthesis,

(12) - (23 +131) =

(12) -154

Finally subtract,

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