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dexar [7]
3 years ago
15

Simplify each expressionplease be sepific to 7(3x + 5y) =

Mathematics
1 answer:
anyanavicka [17]3 years ago
7 0

Answer:

21x+35y

Step-by-step explanation:

7*3x+7*5

21x+35y

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66/85

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A train travels 2,000 miles in 40 hours ,going the same distance each hour .how many miles does the train travel each hour
Oksana_A [137]

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50

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2000/40=50

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Mason is multiplying 3 x 5 x 0.1 x 0.1 what demical multiplication problem is he solving
Mariulka [41]

Answer:

The answer is 0.15

Step-by-step explanation:

3 × 5 × (0.1) × (0.1)

15 × (0.01) = 0.15

Thus, The answer is 0.15

<u>-TheUnknownScientist 72</u>

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3 years ago
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Explain how you would graph the line containing a slope of –1/5 that goes through the point (1,–4).
Anettt [7]
Slope = -1/5
Coordinate = (1, -4)

We know, y - y1 = m(x - x1)
y + 4 = -1/5 (x - 1)
y + 4 = -1/5x + 1/5
y = -1/5x -19/5

When, x = 1, y = -1/5(1) - 19/5 = -20/5 = -4
x = 2, y = -1/5(2) - 19/5 = -21/5
x = 3, y = -1/5(3) - 19/5 = -22/5

Here, Your Coordinates would be: (0, -4), (1, -21/5), (2, -22/5)
Mark them & draw the lines. Graph is done!

Hope this helps!
5 0
3 years ago
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A student has some​ $1 and​ $5 bills in his wallet. He has a total of 11 bills that are worth ​$31. How many of each type of bil
aleksley [76]

Answer:

6 $1 bills, 5 $5 bills

Step-by-step explanation:

Say the student has x $1 bills.

Then they have 11 - x $5 bills.

31 = 1 * x + (11 - x) * 5 = 55 - 4x

4x = 55 - 31 = 24

x = 6

So, they have 6 $1 bills and 11 - 6 = 5 $5 bills

5 0
2 years ago
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