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Sergeeva-Olga [200]
2 years ago
6

Henry has quarters, dimes, nickels and pennies in a coin jar. He says that the total amount of money is two dollars and forty-on

e cents. He also claims that there are exactly twenty-three pennies. Let q be the number of quarters, d be the number of dimes, and n be the number of nickels. Which equation represents the relationship expressed above?
a. q + d + n = 23
b.q + d + n + 23 = 241
c. 25q + 10d + 5n + 23 = 2.41
d.25q + 10d + 5n + 23 = 241
Mathematics
1 answer:
Gala2k [10]2 years ago
7 0

Answer: D

Step-by-step explanation:

All would add up to 241 instead of 2.41 because you are not using decimals for the constants (Example: 25q not .25q)

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A building has an entry the shape of a parabolic arch 74 ft high and 28 ft wide at the base as shown below.
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The equation of a parabola with vertex at (h,k) is 
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we see that one point is (14,-74)
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-37/98=a

the equation is 

y= \frac{-37}{98} x^2




6 0
2 years ago
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Which inequality is true if p= 3.4?
BigorU [14]

Answer:

None of the equations are true for p = 3.4

Step-by-step explanation:

In order for the inequality to be valid we need to apply the value for p and check wether or not it is true. We gonna do for each of the following:

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10.2 < 10.2

Not true, since the left side is equal to the right side and not less.

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13.6 < 13.26

Not true since 13.6 is greater than 13.26

C. 5p > 17.1

5*3.4 > 17.1

17 > 17.1

Not true since 17 is less than 17.1

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8.5 > 8.5

Not true since the left side is equal to the right side.

7 0
2 years ago
Identify two tables which represent quadratic relationships
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Answer:

Tables 3 and 5

Step-by-step explanation:

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A machine takes 5.4 hours to make 9 parts. At that rate how many parts can the machine make in 25.8 hours
Sliva [168]
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Use the Midpoint Formula three times to find the three points that divide the line segment joining (x1, y1) and (x2, y2) into fo
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We are given points A(x_1,y_1) and B(x_2,y_2). 

We first find the midpoint M, of AB, which divides the segment AB into 2 equal parts, 

then we find the midpoint N of AM, and midpoint K of MB.

Thus each of the half parts is divided into 2 equal parts. The whole segment is divided into 4 equal parts.




The coordinates of M, N and K are found as follows:


the coordinates of M are: ( \frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})


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similarly, the coordinates of k are:

=\displaystyle{(\frac{x_1+3x_2}{4}, \frac{y_1+3y_2}{4})}


6 0
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