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kupik [55]
3 years ago
9

Solve the liner equation 17-x=1/2(15)+6

Mathematics
1 answer:
Genrish500 [490]3 years ago
8 0

Answer:

x = 3.5

Step-by-step explanation:

15(1/2) = 7.5

7.5+6 =13.5

subtract 17 and divide by -1 to isolate x 13.5-17/-1

x = 3.5

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The 4th term in a geometric sequence is -15, the 5th term is 45 and the 6th term is -135. Find the sum of the first 7 terms.
Andreas93 [3]

Answer:

d) 303 8/9

Step-by-step explanation:

4th term = ar^3  and 5th = ar^4   where a = first term and r = common ratio.

So ar^4 / ar^3

= r = 45/-15 = -3.

Working back,:

The first term a = ar^3/ r^3

= -15 / (-3)^3

= -15/-27

= 5/9

Sum of n terms = a * (r^n - 1)/(r-1)

= 5/9 * ((-3)^7 - 1 ) / (-3 -1)

= 303 8/9

3 0
2 years ago
Read 2 more answers
2x 26<br> Please I need help I am failing math !!
almond37 [142]

Answer:

2*26=52

Step-by-step explanation: you can just use a calculator to find 2*26 and you will find that the answer to your question is 52.

3 0
3 years ago
Read 2 more answers
What are the answers to this?
galina1969 [7]
Try Mäthwáy it works pretty good
6 0
3 years ago
Brian has 40000 to invest in a mix of corporate and municipal bonds. The corporate bond pays 10% simple annual interest and the
jonny [76]

Answer:

Sum of money invested in corporate bonds = 30,000

Step-by-step explanation:

Total sum = 40,000

The rate of interest for corporate bonds = 10 % = 0.1

The rate of interest for municipal bonds = 6 % = 0.06

Total interest = 3600

Let sum of money invested in corporate bonds = x

The sum of money invested in municipal bonds = 40000 - x

x × 0.1 × 1 + (40000 - x) × 0.06 × 1 = 3600

(0.1- 0.06)x + 2400 = 3600

0.04 x = 1200

x = 30,000

Since x =  sum of money invested in corporate bonds

So  sum of money invested in corporate bonds = 30000

4 0
3 years ago
The height of a distance marker is 8 2/13 feet. 4/5 of the pole is painted white and rest is painted blue. How much of the pole
Mashcka [7]
1) Convert the mixed number 8 and 2/13 into a fraction:

8 and 2/13 = 8 + 2/13 = (8*13 + 2) / 13 = 106 / 13

2) Calculate 4/5 of 106 / 13

(4 / 5) * ( 106 / 13) = (4*106) / (5*13) = 424 / 65

That is (390 + 34) / 65 = 390/65 + 34/65 = 6 + 34/65 is painted white

3) Calculate the rest

 (1/5) * (106 / 13) = 106 / 65 = 1 + 41/65 is painted blue


6 0
3 years ago
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