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Greeley [361]
3 years ago
10

Please help me with this

Mathematics
1 answer:
luda_lava [24]3 years ago
8 0
Distributive property!

2 * 4x = 8x
2 * 9 = 18

8x - 9

3 * 7 = 21
3 * x = 3x

8x - 9 + 21 - 3x

5x + 12

I hope this helped! So sorry if it’s incorrect
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A bag contains five ping-pong balls numbered 1 to 5. Two balls are removed to form a two digit number. The smallest possible num
blsea [12.9K]

Answer:

\frac{11}{42} or 26.19%

Step-by-step explanation:

If the range of possible numbers is between 12 and 54 then that means that there are 42 (54 - 12) possible numbers that can be made. In this range, there are 11 prime numbers which are the following...

13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53

Therefore, the probability that the number formed is a prime would be \frac{11}{42} which if we divide and multiply the decimal by 100 we get the probability in percentage form.

\frac{11}{42} = 0.2619

0.2619 * 100 = 26.19%

Finally, we can see that the probability of this happening is 26.19%

3 0
2 years ago
Y = f(x) = -1^x<br> find f(x) when x=3
Anna [14]
Hello : 
<span>f(x) = (-1)^x
if x=3
f(3) = (-1)^3 = -1</span>
4 0
3 years ago
Read 2 more answers
An item is regularly priced at $40. Aldo bought it on sale for 85% off the regular price. How much did Aldo pay?
Kazeer [188]
40 x 85% = 34

40-34= 6

Your answer is $6
3 0
3 years ago
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Which expression uses the greatest common factor and the distributive property to rewrite the sum 7 + 75
Lady_Fox [76]

Answer:

75 + 45 = 15(3 + 5)

Step-by-step explanation:

Given

75 + 45 <em>-- Corrected</em>

Required

Use the GCF to write it as a distributive property

First, we find the GCF of 75 and 45

45 = 3 * 3 * 5

75 = 3 * 5 * 5

The common factor is:

GCF = 3 * 5

GCF = 15

So, 75 + 45 becomes

75 + 45 = 15 * 3 + 15 * 5

Factorize

75 + 45 = 15(3 + 5)

<em>Hence, the sum has been rewritten as </em>15(3 + 5)<em></em>

5 0
3 years ago
Y = 15x + 10, where y is the total cost of renting 1 bicycle on the boardwalk for x hours. Determine whether the function is pro
vova2212 [387]

Answer:

The function is non-proportional.

Step-by-step explanation:

If the function was proportional, when the number of hours spent riding the bicycle is equal to 0, the total cost of renting the bicycle would also be 0. In other words, the function would be proportional if y=0 when x=0. However, this is not the case.

y=15x+10

Plug 0 into the equation as x

y=15(0)+10\\y=10

When 1 bicycle has been rented for 0 hours, the customer still has to pay 10 dollars just for renting it. When x=0, y=10. This means that the function is non-proportional.

I hope this helps!

4 0
3 years ago
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