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jekas [21]
3 years ago
15

Diane averages 10 mph riding her

Mathematics
1 answer:
aksik [14]3 years ago
4 0

Answer:

20 miles

Step-by-step explanation:

d miles × (1 h)/(10 miles) = d/10 hours

d miles × (1 h)/(40 miles) = d/40 hours

d/40 = d/10 - 3/2

d = 4d - 60

d = 20 miles

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DanielleElmas [232]

Answer:

do 49 x 49 which equals 2,401 then check it

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5 0
3 years ago
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A = 6 and b = 24 work out the values a) a+b b) ab c) b/a d) d) (a+b)^2
Oksanka [162]

Answer:

a) 30

b) 144

c) 4

d) 900

Step-by-step explanation:

a) 6 + 24 = 30

b) 6 * 24 = 144

c) 24 ÷ 6 = 4

d) 30^2=900

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3 years ago
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Consider this function. f(x)-3x+3. Which graph represents the inverse of function f?
Kamila [148]

9514 1404 393

Answer:

  graph Y

Step-by-step explanation:

The inverse function can be found by solving ...

  x = f(y)

  x = -3y +3

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  y = -1/3x +1 . . . . . matches graph Y

_____

<em>Additional comment</em>

Writing the original equation in standard form can help you see its intercepts.

  3x +y = 3

  3x = 3   ⇒   x = 1 . . . . x-intercept (at y=0)

  y = 3   . . . . y-intercept (at x=0)

The inverse function has the x- and y-intercepts swapped, so you're looking for a line through (0, 1) and (3, 0). The lower left graph (Y) is that graph.

3 0
3 years ago
Sally's mother wants to buy a cell phone. The price of the cell phone she wants increased this week from $200 to $240. What is t
Mice21 [21]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
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What is (2x2 + 4x − 3)(x2 + 2) distributived ?
Effectus [21]

Answer:

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Step-by-step explanation:

(2x² + 4x - 3)(x² + 2)

2(x² + 2) · x² + 4x(x² + 2) - 3(x² + 2)

2x⁴ + 4x² + 4x(x² + 2) - 3(x² + 2)

2x⁴ + 4x² + 4x³ + 8x - 3x² - 6

2x⁴ + x² + 4x³ + 8x - 6

2x⁴ + 4x³ + x² + 8x - 6

6 0
2 years ago
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