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Paraphin [41]
3 years ago
10

4^x+7 = 8^2x-3 Solve each equation showing work please

Mathematics
1 answer:
bazaltina [42]3 years ago
6 0

Hi sorry for the messy writing ignore everything else written in pencil

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25​% of what number is 20​?
anastassius [24]

Answer:

80

Step-by-step explanation:

25/100 is one fourth so flip the fraction then multiply by 20 for your answer

7 0
4 years ago
Megan has 25 phone numbers stored in her cell phone. Abby has some phone numbers stored in her cell phone.Together they have a t
Mkey [24]

Answer:

The number of phone numbers Abby has stored in her cell phone, n = 61 - 25 = 36

Step-by-step explanation:

Megan has 25 phone numbers stored in her cell phone. Abby has some phone numbers stored in her cell phone.Together they have a total of 61 phone numbers stored.

Given that n= the number of phone numbers Abby has stored in her cell phone.

We have combined contacts = 61

                25 + n = 61

                   n = 61 - 25 = 36

The number of phone numbers Abby has stored in her cell phone, n = 61 - 25 = 36

7 0
3 years ago
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Solve for x x-4=-7. Please
Alecsey [184]

Answer:

-3

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x - 4 = - 7

Carry over the - 4 and make x the subject.

x= - 7 + 4

x= - 3

Therefore x is - 3

8 0
4 years ago
You want to apply a weed killer to your lawn. The directions on the bottle call for mixing 3 ounces of weed killer with 2 gallon
Alborosie

5/2 = 2.5

3 ounces x 2.5 = 7.5 ounces of weed killer

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Caseys took 25 tests in 135 days at this rate in how many days will she take another 10 test
Butoxors [25]
It will take her 54 days to take 10 more tests
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3 years ago
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