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olga nikolaevna [1]
2 years ago
13

I need Help with this pls

Mathematics
1 answer:
Ainat [17]2 years ago
4 0

Answer: A

Step-by-step explanation:

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❗️❗️❗️❗️❗️PLEASE HELP SIMPLE INTEREST!! Lesson 6.7 ❗️❗️❗️❗️
Flura [38]

1200 * 0.05 * 4 = 240$ the amount of interest after 4 years.

total 1200+240=1440$

4 0
3 years ago
Solve the equation. 12x – 15 = 3(2x +3)
MA_775_DIABLO [31]

Answer:

x = 4

Step-by-step explanation:

Solve for x:

12 x - 15 = 3 (2 x + 3)

Hint: | Write the linear polynomial on the left hand side in standard form.

Expand out terms of the right hand side:

12 x - 15 = 6 x + 9

Hint: | Move terms with x to the left hand side.

Subtract 6 x from both sides:

(12 x - 6 x) - 15 = (6 x - 6 x) + 9

Hint: | Combine like terms in 12 x - 6 x.

12 x - 6 x = 6 x:

6 x - 15 = (6 x - 6 x) + 9

Hint: | Look for the difference of two identical terms.

6 x - 6 x = 0:

6 x - 15 = 9

Hint: | Isolate terms with x to the left hand side.

Add 15 to both sides:

6 x + (15 - 15) = 15 + 9

Hint: | Look for the difference of two identical terms.

15 - 15 = 0:

6 x = 9 + 15

Hint: | Evaluate 9 + 15.

9 + 15 = 24:

6 x = 24

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides of 6 x = 24 by 6:

(6 x)/6 = 24/6

Hint: | Any nonzero number divided by itself is one.

6/6 = 1:

x = 24/6

Hint: | Reduce 24/6 to lowest terms. Start by finding the GCD of 24 and 6.

The gcd of 24 and 6 is 6, so 24/6 = (6×4)/(6×1) = 6/6×4 = 4:

Answer:  x = 4

8 0
3 years ago
3 different problems, sorry these type confuse me
Art [367]
F [g(x)]
= 5(6x) - 1
= 30x - 1

g [f(x)]
= 6(5x - 1)
= 30x - 6

g [f (2)]
= 6 [5(2) - 1]
= 6 (10 - 1)
= 60 - 6
=54
5 0
2 years ago
John got the follow scores on his tests what is the interquartile range of his scores 78,57,90,60,89,69,95
Aleksandr-060686 [28]
57, 60, 69, 78, 89, 90, 95 (90-60=30) Answer= C. 30
7 0
2 years ago
An owner of an repair service Company eliminates that for every 30 hours a repair person is on the job he can bill for only 72%
vredina [299]

Answer: He is idle for 8.4 hours.

Step-by-step explanation:

Since we have given that

Number of hours he repairs  =30 hours

Percentage of hours he worked = 72%

Remaining percentage of hours he remains idle is given by

100-72\\\\=28\%

So, Number of hours he is idle for a driving  is given by

0.28\times 30\\\\=8.4\ hours

Hence, he is idle for 8.4 hours.

6 0
3 years ago
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