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Assoli18 [71]
3 years ago
9

What is the answer to 9 over 15= 3 over 5

Mathematics
1 answer:
statuscvo [17]3 years ago
3 0

Answer:

3 over 5

Step-by-step explanation:

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The width of a rectangular painting is 5 inches shorter than it's length. Creat a table of values to include possible widths,len
Misha Larkins [42]
A = L * W
W = L - 5

                                these are in inches...
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                  10                      5                       50 in^2
                  9                        4                       36   "
                  8                        3                       24   "
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6 0
4 years ago
a collection of dimes and quarters is worth $19.85. There are 128 coins in all. How many of each type of coin are in the collect
PolarNik [594]

Number of dimes were 81 and number of quarters were 47

<em><u>Solution:</u></em>

Let "d" be the number of dimes

Let "q" be the number of quarters

We know that,

value of 1 dime = $ 0.10

value of 1 quarter = $ 0.25

<em><u>Given that There are 128 coins in all</u></em>

number of dimes + number of quarters = 128

d + q = 128 ------ eqn 1

<em><u>Also given that collection of dimes and quarters is worth $19.85</u></em>

number of dimes x value of 1 dime + number of quarters x value of 1 quarter = 19.85

d \times 0.10 + q \times 0.25 = 19.85

0.1d + 0.25q = 19.85  -------- eqn 2

<em><u>Let us solve eqn 1 and eqn 2</u></em>

From eqn 1,

d = 128 - q -------- eqn 3

<em><u>Substitute eqn 3 in eqn 2</u></em>

0.1(128 - q) + 0.25q = 19.85

12.8 - 0.1q + 0.25q = 19.85

12.8 + 0.15q = 19.85

0.15q = 7.05

<h3>q = 47</h3>

Therefore from eqn 3,

d = 128 - q

d = 128 - 47

<h3>d = 81</h3>

Thus number of dimes were 81 and number of quarters were 47

4 0
3 years ago
What is the slope of the line (2,3) (1,-2)?
jarptica [38.1K]

Answer: The slope is 5

Step-by-step explanation:

You can calculate the slope of the line with this fomula:

m=\frac{y_2-y_1}{x_2-x_1}

Given the points (2,3) and (1,-2), you can identify that:

y_2=-2\\y_1=3\\x_2=1\\x_1=2

Now, the final step is to substitute these values into the formula  m=\frac{y_2-y_1}{x_2-x_1}, getting that the slope of this line is:

 m=\frac{-2-3}{1-2}

m=\frac{-5}{-1}\\\\m=5

8 0
3 years ago
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7, 2x+2y= 16<br> 2x + (y= 28
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Answer:

its k haha

Step-by-step explanation:

6 0
3 years ago
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How many reflectional symmetries does this figure have?
liubo4ka [24]

Answer:

1 & 1

Step-by-step explanation:

6 0
3 years ago
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