MATHEMATICS HIGH SCHOOL

In Canada, $1 and $2 bills have been replaced by coins. When Marissa returned home to San Fran from a trip to Canada, she found that she had acquired 37 of these coins, with a total value of 51 canadian dollars. How many coins of each denomination did she have?

Answers

Answer 1

Answer:

$1 coin is 23

$2 coin is 14

Step-by-step explanation:

We need to form mathematical equations that we can solve from this Long citation.

Firstly, let the numbers of $1 coins be a and that of $2 be b.

We know that there are 37 coins. Hence

a + b = 37

Now, total is 51 Canadian dollars.

a + 2b = 51

Let’s now solve this simultaneously

From 2 , a + b + b = 51

Let’s say this is 3. Now substitute 1 into 3.

37 + b = 51, b = 51 - 37 = 14

Since a + b = 37

a = 37 - 14 = 23

Related Questions

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Give the degree and classify the polynomial by the number of terms. 2x + 1 A. degree: 0; monomial B. degree: 1; binomial C. degree: 0; binomial D. degree: 1; monomial

Answers

If there are no exponents within then the highest power is one. Since there are two terms within (2x and 1) then it is a binomial.

The Correct answer is B. Degree: 1;Binomial Hoep you get it correct

Antony has a net spendable income of $1,950 per month. What is the maximum recommended amount of money that he should budget for food for a month? Round to the nearest dollar

Answers

$293
$332
$234
$390.........................

Brainliest please get right

Answers

Answer:

12x-9

Step-by-step explanation:

hope this helpssss

Answer:

12x + -9 or 12x-9

Step-by-step explanation:

9x-4+3x-5

Combine the like terms.

9x + 3x = 12x

-4 - 5 = -9

12x-9

Roy's average balance checking account pays simple interest of 4.8% annually, and he made $2.25 in interest last month. What was Roy's average balance last month?

Answers

$562.50.

Thats what it is but it thinks im explaining it but im not because thats more than 20 characters

4⁄8 + ¼ = ? What is the correct answer to this problem? a. 1 b. ⅝ c. ¾ d. 2⁄8

Answers

Answer:

c. ¾

Step-by-step explanation:

By adding fractions, you must follow the following steps:

1. Make sure the numbers of the denominators are equal.

2. Add the numerators and put this number over the denominator.

3. Simplify.

Since the number of the denominators are different. We must multiply and divide one fraction for a number such that the denominators stand equal. For instance, we can multiply and divide fraction 1/4 by number 2 as follows:

$(1)/(4)=(1 * 2)/(4 * 2)= (2)/(8)$

So the expression can be written as follows:

$(4)/(8)+(2)/(8)=(6)/(8) \n \n But \ (6)/(8) \ can \ be \ written \ as: \n \n (3 * 2)/(4 * 2) = \boxed{(3)/(4)}$

Janna is making a prediction of the frequency of a key that is 12 keys from middle c. which best describes her prediction? interpolation, because a key that is 12 keys from middle c is within the data set interpolation, because a key that is 12 keys from middle c is outside the data set extrapolation, because a key that is 12 keys from middle c is within the data set extrapolation, because a key that is 12 keys from middle c is outside the data set

Answers

The correct answer is:

Extrapolation, because a key that is 12 keys from middle c is outside the data set.

Explanation:

Interpolation is inserting an intermediate value into an existing series using estimation or calculations from nearby values. A key 12 keys from middle C is not in the data set involved, so this is not interpolation.

Extrapolation involves using a trend or pattern to estimate unknown values past the values we have. Since this key would be past our data set that we have, this would be extrapolation.

Among the choices the one that best describes her prediction is "extrapolation, because a key that is 12 keys from middle C is outside the data set".

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

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