The required Rob has 16 dimes and 24 quarters as he has a total of 40 coins.
The equation model is defined as the model of the given situation in the form of an equation using variables and constants.
Here,
Let x be the number of dimes that Rob has, and y be the number of quarters.
We know that he has a total of 40 coins, so,
x + y = 40 ( 1)
We also know that the value of all his coins is $7.60. The value of x dimes is 10x cents, and the value of y quarters is 25y cents. So,
10x + 25y = 760 ( 2)
Now we can solve for x and y. Let's start by solving equation 1 for one of the variables:
x + y = 40
y = 40 - x
Substitute this expression for y into equation 2:
10x + 25y = 760
10x + 25(40-x) = 760
10x + 1000 - 25x = 760
-15x = -240
x = 16
So Rob has 16 dimes. We can use equation 1 to find the number of quarters:
x + y = 40
16 + y = 40
y = 24
So Rob has 24 quarters.
Therefore, Rob has 16 dimes and 24 quarters.
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Answer:
What is the constant rate?
Step-by-step explanation:
6. Rotate 180 degrees from origin and shift 5 units down.
7. Scale 2x at origin and reflect across the Y axis. The sizes are different so it’s similar
$8370 of the deposit money $9000 is the money the bank is free to lend given that the reserve rate is 7%. This is obtained by finding 7% of deposit money and subtracting the answer from the deposit money.
Given that, deposit = $9000
reserve rate = 7%
First we have to find 7% of $9000,
7% of $9000 = 7/100 × $9000
= $630
Money the bank is free to lend, $9000 - $630 = $8370
Hence $8370 of the deposit money $9000 is the money the bank is free to lend given that the reserve rate is 7%.
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m<1+m<2+m<3=180
m<2+ m<4=180
<2=<3
<2=<4
m<3=m<4
Answer:
Step-by-step explanation:
Let's analyze each statement and classify them as always true, sometimes true, or never true based on the figure provided:
1. m<1+m<4=180:
This statement is always true. In the figure, angles 1 and 4 are vertical angles, which means they are congruent. Therefore, m<1 = m<4, and their sum is always equal to 180 degrees.
2. m<1+m<2+m<3=180:
This statement is never true. In the figure, angles 1, 2, and 3 do not form a straight line. Therefore, the sum of m<1, m<2, and m<3 cannot be equal to 180 degrees.
3. m<2+ m<4=180:
This statement is sometimes true. In the figure, angles 2 and 4 are adjacent angles, and their sum can be equal to 180 degrees if they form a straight line. However, if angles 2 and 4 do not form a straight line, their sum will be less than 180 degrees.
4. <2=<3:
This statement is never true. In the figure, angles 2 and 3 are not congruent. Therefore, <2 is not equal to <3.
5. <2=<4:
This statement is sometimes true. In the figure, angles 2 and 4 can be congruent if they are vertical angles. However, if they are not vertical angles, they will not be congruent.
6. m<3=m<4:
This statement is always true. In the figure, angles 3 and 4 are vertical angles, which means they are congruent. Therefore, m<3 = m<4.
To summarize:
- Statement 1 is always true.
- Statement 2 is never true.
- Statement 3 is sometimes true.
- Statement 4 is never true.
- Statement 5 is sometimes true.
- Statement 6 is always true.