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Delicious77 [7]
3 years ago
7

Sadie has $1 worth of nickels and dimes. She has twice as many nickels as dimes. Write a system of equations that could be used

to determine the number of nickels and the number of dimes that Sadie has. Define the variables that you use to write the system.
Mathematics
1 answer:
zepelin [54]3 years ago
6 0
N + 2d =1
This is the system of equations because it is 2 times more than nickels
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find the value of the letter in each of the following and give reasons for the steps involved 1 2 A+6 A B=A 0 9​
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Question:

Find the value of the letter in each of the following and give reasons for the steps involved:

1 2 A

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Answer:

128 + 681 =  809

Step-by-step explanation:

Here, let's use the general form of numbers where any  letter must represent one value and each digit must be represented by just one letter.

Take the following:

A = 8

B = 1

Thus, A +B = 8 + 1 = 9

Also add:

8 + 2 = 10

In general form, tens digit is zero and the 1 is carried over.

I.e, A = 1 + 6 + 1 = 8

We can now see that,

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B = 1

Therefore,

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Will be written as:

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3 years ago
Write a quartic trinomial with a leading coefficient of 2 using standard form
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2x^4 + x^3 + 0x^2 + 0x + 30

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Answer:7

Step-by-step explanation:

Remember,

PEMDAS

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Answer:

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