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zepelin [54]
3 years ago
13

5 ogarithmic equation in exponential form: log(5k + 4) = 8r

Mathematics
1 answer:
alexandr1967 [171]3 years ago
7 0

Given:

\log (5k+4)=8r

To find:

The exponential form of given equation.

Solution:

We have,

\log (5k+4)=8r

According to the property of the logarithm,

\log_ax=y\Rightarrow x=a^y

Using the above property of the logarithm, we get

5k+4=10^{8r}        

Therefore, the required equation in exponential form is 5k+4=10^{8r}.

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Ali, Ben, and Cliff plant seedlings in their neighborhood park. Ali plants 40% of the total number of seedlings, Ben plants 45%
Juli2301 [7.4K]

Answer:

580 seedlings altogether.

Step-by-step explanation:

Given that,

Ali plants 40% of the total number of seedlings, Ben plants 45% of the total number of seedlings, and Cliff plants the rest of the seedlings. Cliff plants 87 seedlings.

The percentage of the seedling planted by Cliff = 100% - 45% - 40% = 15%

<em>Let x = the total number of seedlings</em>

<em />15\%\ of\ x=87\\\\x=\dfrac{87\times 100}{15}\\\\x=580

Hence, three boys plant 580 seedlings altogether.

7 0
3 years ago
Can anyone help me please
guajiro [1.7K]

Answer:

a) 5 people

b) Yes.

Step-by-step explanation:

The best way to solve this problem is to use the amount of work needed each week and divide it by the amount worked by each person (150/32). This will give you 4.6875. However, you cannot have 6/10 of a person, so you must round up to the next whole number, 5. There are 5 people needed to fulfill the amount of hours posted. For Part B, you will be decreasing the hours worked by each person from 32 to 30. Use the same method you did above and divide the total amount of work needed by the amount worked by each person (150/30) to get 5 on the dot. Your answer is Yes.

I hope this helps! Good luck!

6 0
3 years ago
You have a summer job running errands for a local business. You earn 12.25 per day, plus $1.50 for each errand. Write and solve
Stella [2.4K]

Hello!

You have already earned 12.25 dollars. So now, you need to earn $31.75. If each errand is $1.50, you can divide $31.75 by $1.50. You would get roughly 21.17. Since you can not do 21 errands and .17 of an errand, you would need to do about 22 errands to get the money you need, which is the $31.75. 1.50 times 22 is equal to thirty-three, so youd be getting about a dollar and 25 cents more than what you need. We can had 33 (what we earn from our 22 errands) to 12.25, which is what we already have, and we get 45.25! So you can earn more money than you need to earn.

Hope this helps, have an awesome day!

7 0
3 years ago
What is the answer to both of these?
asambeis [7]

Answer:

C   and    D

Step-by-step explanation:

8 0
4 years ago
the sale price of an item is $180 after a 25% discount is applied. What is the original price of an item ?...
Paha777 [63]
AFTER 25%

oriignal=100%

discount of 25% means minus 25%

100%-25%=75%

therefor

180=75% of original
180=0.75 times originail
divide both sides by  0.75
240=original

$240
4 0
4 years ago
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