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trapecia [35]
3 years ago
14

12 grapes cost 90 $how many can bought in 40$

Mathematics
2 answers:
Nastasia [14]3 years ago
5 0

Answer:

5 grapes

Step-by-step explanation:

You can use a proportion.

12 grapes is to 90$ as x grapes is to 40$

12/90 = x/40

90x = 12 * 40

9x = 12 * 4

9x = 48

x = 5.33

Since you cannot buy 1/3 of a grape, you need to round down to the nearest whole number.

Answer: 5 grapes

likoan [24]3 years ago
4 0

Let x = the amount of grapes that can be bought for 0.40.


Note: By 90 I assume you mean 90 cents. The same for 40.


12/x = 0.90/0.40


0.90x = 12(0.40)


0.90x = 4.80


x = 4.80 ÷ 0.90


x = 5.33333


We can round the decimal to the ones place to get 5 grapes.




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kurt drives a total of 32 miles to and from work everyday. he works 5 days a week. how many miles does kurt drive in a week for
galben [10]

Answer:

320 miles

Step-by-step explanation:

he drives to work 5 times a week and back 5 times a week, so 5+5 = 10 and 32x10 is 320

7 0
3 years ago
Plsss need help!!! will give brainliest !!!
Vesna [10]

Answer:

The relationship between the graphs of the two functions is "They are reflections of each other across the y-axis" ⇒ B

Step-by-step explanation:

  • If the function f(x) reflected across the x-axis, then the new  function g(x) = - f(x), which means the signs of the y-coordinates of the points on f(x) are opposite in g(x)
  • If the function f(x) reflected across the y-axis, then the new  function g(x) = f(-x), which means the signs of the x-coordinates of the points on f(x) are opposite in g(x)

∵ The points on f(x) are (-2, -31), (-1, 0), (1, 2), (2, 33)

∵ The points on g(x) are (2, 3), (1, 0), (-1, 2), (-2, 33)

∵ All x-coordinates on f(x) multiplied by -1 to get the x-coordinates of g(x)

→ By using the 2nd rule above

∴ g(x) is the image of f(x) after reflection across the y-axis

∴ The relationship between the graphs of the two functions is

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7 0
3 years ago
What is -0.8+1.4n=2+0.7n
Sergio [31]

Answer:

n=4

Step-by-step explanation:

To solve combine your like terms.

You can start by adding 0.8 to both sides and subtracting 0.7n from both sides.

-0.8+1.4n=2+0.7n\\1.4n=2.8+0.7n\\0.7n=2.8

Next, divide both sides by 0.7 to isolate for n.

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Required
svetlana [45]
3.99•10^13 is the answer
5 0
3 years ago
Simplify <br> (-8.5) (-5) (-2).
Ber [7]

Answer:

-85

Step-by-step explanation:

(-8.5)(-5)(-2)

=(-8.5)(10)

=-85

8 0
3 years ago
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