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4 years ago

Does "more than" mean adding or subtracting?

2 answers:

iogann1982 [59]4 years ago

8 0

It means greater than. For example: Thomas baked 50 cupcakes in 1 hour and Ezra baked 25 cupcakes in 1 hour. How many more cupcakes did Thomas bake than Ezra. The answer would be 25 cupcakes. In this example you are subtracting but " more than" is greater than so I think it's subtracting.

Studentka2010 [4]4 years ago

5 0

+ means: More than, Add, In Addition, Increased, In Excess, Greater.
- means: Decreased by, Less than, Subtract, Difference, Diminished, 
........Reduced, Remainder. 
• or x means: Times as much, Percent of, Multiply, Product, Interest on. 
/ or ÷ means: Divide, Quotient, Per. 
(...) means: Quantity. 
= means: Is, Was, Equal, Will be, Results.

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If f(x) = 5x, what is f -1 (x) ?

Gala2k [10]

Answer:

$f^{-1}(x) = \frac{x}{5}$

Step-by-step explanation:

$f^{-1}\left( x\right) =y\Longleftrightarrow f\left( y\right) =x$

…………………………

f(y) = x

⇔ 5y = x

$\Longleftrightarrow y =\frac{x}{5}$

$\Longleftrightarrow f^{-1}(x) = \frac{x}{5}$

4 0

2 years ago

the length of a pool 2 km long is represented on a map with a length of 20cm. what is the map scale used?

goldenfox [79]

Answer:

The scale used is 1: 10,000 cm.

Step-by-step explanation:

Given that the length of a pool 2 km long is represented on a map with a length of 20cm, to determine what is the map scale used the following calculation must be performed:

2 km = 2,000 m

1m = 100cm

2,000 x 100 = 200,000

20: 200,000

10: 100,000

1: 10,000

Thus, the scale used is 1: 10,000 cm.

4 0

3 years ago

Read 2 more answers

A landscaper wants to create a 12-foot-long diagonal path through a rectangular garden. The width of the garden is x feet and th

dolphi86 [110]

Answer:

Width of the rectangle = 6.7 ft

length of the rectangle = 10.7 ft

Step-by-step explanation:

ABCD is the rectangle.

AB = length of the rectangle = 4 + x ft

BC = width of the rectangle = x ft

AC = Diagonal of the rectangular field = 12 ft

Since ΔABC is the Right angle triangle. So

$AC^{2} = AB^{2} + BC^{2}$

$12^{2} = (4 + x)^{2} + x^{2}$

$144 = x^{2} + 16 + x^{2} + 8 x$

$144 = 2x^{2} + 8x + 16$

$x^{2} + 4x -72 = 0$

By solving above equation we get

x = 6.7 ft

Thus is the width of the rectangle.

And length of the rectangle = 4 + x

⇒ 4 + 6.7

⇒ 10.7 ft

5 0

3 years ago

Read 2 more answers

Graph the set on the number line.

Ratling [72]

Here’s the answer w explanation :)

8 0

3 years ago

A baker purchased 12 lb of wheat flour and 15 lb of rye flour for a total cost of $18.30. A second purchase at the same prices,

vivado [14]

12w+15r=18.30 /*2
15w+10r=16.75 /*3

24w+30r=36.60, subtract this equation from the other one
45w+30r=50.25

21w=13.65
w=13.65/21
w=0.65 is a cost per pound for wheat flour

From the first equation we have
r=(18.30-12w)/15
r=(18.30-12*0.65)/15
r=0.70 is a cost per pound for rye flour

3 0

3 years ago