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Misha Larkins [42]
2 years ago
9

Solve 7^x-2 =30.

Mathematics
1 answer:
Anna007 [38]2 years ago
3 0

Answer:

x = 3.748

Step-by-step explanation:

this problem requires logs

log_{7} 30 = x-2

x = 2 + log_7 (30) or 3.7479

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A person earns 23,000 one year and gets a 5% raise in salary. Calculate the new yearly salary using a percent greater than 100
Kazeer [188]

Answer:

24,150

Step-by-step explanation:

Given that :

Salary earned this year = 23,000

Percentage Raise in salary for the new year = 5%

The new yearly salary can be obtained thus ;

(100% + percentage raise in salary) * salary earned this year

(100% + 5%) * 23,000

105% * 23000

1.05 * 23000

24,150

4 0
3 years ago
What is the length of AC?
MatroZZZ [7]
The sin <ABC means that AC/AB. So we know AB=34. AC/AB=8/17. So the length of AC is 16. cos<ABC means BC/AB. tan<ABC means AC/BC.
8 0
3 years ago
Read 2 more answers
rebecca purchased a total of 17 books and toys for the woodbine play school. each book cost 6 dollars and each toy costs 11 doll
DochEvi [55]
Let x= the number of books purchased: 7 books purchased  
let y = the number of toys purchased;10 toys purchased  
Equations: x+y=17
                 6x+11y=152             x+10=17
-6(x+y=17)          y=10                  -10  -10
                                                    ------------
-6x-6y=-102                                     x=7
6x+11y=152
--------------------
0x+5y=50
     ----  ----
      5     5
8 0
4 years ago
Find the percent increase from 275 to 561.​
MakcuM [25]

Answer:

104%

Step-by-step explanation:

(275 × p) / 100 = 286

((275 × p) / 100) × 100 = 286 × 100

275p = 28600

275p / 275 = 28600 / 275

p = 104

Percent Increase = 104

7 0
2 years ago
Read 2 more answers
In a candy factory, the nutty chocolate bars contain 19.0 % pecans by mass. if 5.0 kg of pecans were used for candy last tuesday
Leokris [45]

(5 \div 19) \times 100 = 26.32
5 0
3 years ago
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