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gtnhenbr
3 days ago
15

How could the headline best be revised to make it

Mathematics
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Jessica has 48 coins, some of them are nickels and some are dimes. How many of each does she have if she has $3.25 total?
Svet_ta [12734]

what is the method to create an equation

6 0
3 months ago
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Helena has taken out a $9,300 unsubsidized Stafford loan to pay for her college education. She plans to graduate in four years.
Leona [12618]
The effective annual interest rate calculations yield:
i = (1 + 0.064/12)^12 - 1 = 0.066
For year 1: the interest amounts to $613.80 (calculating $9300 multiplied by 0.066)
For year 2: the interest totals $654.31 (adding year 1’s interest to $9300 and multiplying by 0.066)
For year 3: the interest is $656.98 (following the same process as year 2)
For year 4: the interest is $657.16

The cumulative interest totals: $2582.25
The present value of this sum is:
P = 2582.23 / (1 + 0.066)^4 = $1999.72

Thus, the final answer is $1999.72.
8 0
2 months ago
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Diego's club earns money for charity when members of the club perform community service after school,
babunello [11817]

Answer: Indeed, because the input value ranges from 0 to 12.

Step-by-step explanation:

To address this query, we first need to formulate a function that reflects the situation.

Every student engaging in community service earns the club $5

E(s) = 5 s

Where:

  • E= total earnings
  • n = number of students participating in community services (input value)

Indeed, since the input value n indicates how many students from the club engage in community service, and with the total number of students being 12, the input can indeed vary between 0 and 12.

6 0
3 months ago
În vacanța de vară, Mihai, Maria și
Leona [12618]

Răspuns:

Mihai = 12kg

Maria = 15kg

Teodor = 13 kg

Explicație pas cu pas:

Să folosim x pentru cantitatea de plante medicinale adunate de Mihai.

Să denumim y cantitatea adunată de Maria.

Fie z cantitatea de plante medicinale adunate de Teodor.

În vacanța de vară, Mihai, Maria și Teodor au adunat în total 48 de kilograme de mentă;

x + y + z = 48......... 1

Dacă Maria a adunat cu 3 kilograme mai mult decât Mihai, atunci y = x + 3..... 2

Dacă Teodor a adunat de două ori mai puțin decât Mihai, atunci z = y - 2

Deci, z = (x + 3) - 2

Astfel, z = x + 1.... 3

Înlocuim ecuațiile 3 și 2 în ecuația 1;

<pDin ecuația 1:

x + y + z = 40

x + (x + 3) + (x + 1) = 40

3x + 4 = 40

Scădem 4 din ambele părți

3x = 36

x = 12

Substituim x = 12 în ecuația 2 pentru a determina y

y = x + 3

y = 12 + 3

y = 15

De asemenea, z se calculează astfel: z = x + 1

z = 12 + 1

z = 13

Astfel, Mihai a recoltat 12 kg de plante medicinale, Maria a adunat 15 kg, iar Teodor a strâns 13 kg.

8 0
3 months ago
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