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kobusy [5.1K]
2 years ago
12

Alex had 23 coins in his collection. He found 5 coins and gave Bill 8 coins. How many coins does Alex have now?

Mathematics
2 answers:
sashaice [31]2 years ago
8 0
Alex has 20 coins now
Hatshy [7]2 years ago
5 0

Answer:

alex has 20 coins since 23 + 5 - 8 = 20

step-by-step explanation:

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Shinzou wo sasageyo
OLga [1]

Answer: ty

Step-by-step explanation:

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3 years ago
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Subtract the cube root of the product of h and 3k from the square of the sum of p and q​
ehidna [41]

Answer:

(p + q)²            -          ∛(h·3k)   or   (p + q)² - ∛(h·3k)  

Step-by-step explanation:

Cube root of x:  ∛x

Product of h and 3k:  h·3k

Sum of p and q:  p + q

*****************************

From (p + q)²      subtract ∛(h·3k)      This becomes, symbolically:

=>       (p + q)²            -          ∛(h·3k)

3 0
3 years ago
A group of 10 friends ate dinner. They added a 15% tip, and it cost $99.50. What did the meal cost BEFORE the tip?
siniylev [52]
Cost of meal before tip is $86.52 

4 0
3 years ago
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Is this right?yes or no ​
baherus [9]

Answer:

yes

Step-by-step explanation:

8 0
2 years ago
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Hello, could you please explain this to me?
Viefleur [7K]

Find the value of r(q(4)), so first you need to find the value of q(4).

q(4), this means that x = 4, so substitute/plug it into the equation to find the value of q(x) when x = 4:

q(x) = -2x - 1      Plug in 4 into "x" since x = 4

q(4) = -2(4) - 1

q(4) = -8 - 1

q(4) = -9        

Now that you know the value of q(4), you can find the value of r(x) when x = q(4)

r(x) = 2x² + 1

r(q(4)) = 2(q(4))² + 1      Plug in -9 into "q(4)" since q(4) = -9

r(q(4)) = 2(-9)² + 1

r(q(4)) = 2(81) + 1

r(q(4)) = 163           163 is the value of r(q(4))

5 0
3 years ago
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