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zheka24 [161]
3 years ago
6

Simon has $40 to buy baseballs for her team's practice. Each baseball cost $3. Which inequality represents this situation?

Mathematics
2 answers:
Mrac [35]3 years ago
6 0
A; because the end cost can't equal more than $40
Liula [17]3 years ago
4 0
3b<40 because no matter what the price cannot be over 40 because she only has 40
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Step-by-step explanation:

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3 years ago
19 is 10% of what number
hram777 [196]
19=10%X. 19/.10=190. X=190 :)
7 0
4 years ago
Read 2 more answers
What is the inverse of function f?<br><br><br><br> A. <br><br> B. <br><br> C. <br><br> D.
fomenos
<h3>Answer: Choice D</h3>

f^{-1}(x) = 3-7x\\\\

=====================================================

Work Shown:

f(x) = \frac{3-x}{7}\\\\y = \frac{3-x}{7}\\\\x = \frac{3-y}{7}\\\\7x = 3-y\\\\7x+y = 3\\\\y = 3-7x\\\\f^{-1}(x) = 3-7x\\\\

The idea is to swap each x and y, then solve for y to find the inverse.

3 0
2 years ago
You have 22 coins, dimes and nickels. If the number of dimes and nickels were reversed, you would have $0.40 less than you actua
fenix001 [56]
The coins differ in value by 5¢, so swapping the numbers of them will change the value by 5¢ for each unit difference in the numbers of coins. Since
40¢ = 8 * 5¢
there must be 8 more dimes than nickels.

There are (22 +8)/2 = 15 dimes and 7 nickels.

_____
You could write some equations for this problem. Let n, d represent numbers of nickels and dimes.
.. n +d = 22
.. 10d +5n - (10n +5d) = 40 . . . . . . . cents
.. 5(d -n) = 40 . . . . . . . . . . . . . . . . . . reversing the coin count changes the total by 5 cents for each unit of difference (d -n), as stated above.
.. d -n = 8 . . . . . . . . . . . . . . . . . . . . . . divide the preceding equation by 5
Adding this last equation to the first gives
.. 2d = 22 +8
.. d = 30/2 = 15
.. n = 22 -15 = 7
There are 15 dimes and 7 nickels.
4 0
4 years ago
Write the value of the 5s in 25,578
Reika [66]

Answer:

5 on the left of the coma is in the thousands place

5 on the right of the coma is in the hundreds place

Step-by-step explanation:

7 0
3 years ago
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