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3 years ago

Find two decimals that are equivalent to (8x100)+(3x1/10)+(6x1/00)

Mathematics

1 answer:

cricket20 [7]3 years ago

5 0

800.36
or i guess something like 800+0.36

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In an AP the seventh term is 38 and the twelfth term is 63. What is the sum of the first twenty terms?

lorasvet [3.4K]

Answer: 1110

Step-by-step explanation:

For an arithmetic progression, the nth term is gotten by using the formula:

= a + (n-1)d

Therefore,

7th term = a + 6d = 38 ..... equation i

12 term = a + 11d = 63 ...... equation ii

Subtract equation i from ii

(a + 6d) - (a + 11d) = 38 - 63

-5d = -25

d = 25/5

d = 5

Since d = 5

From a + 6d = 38

a = 38 - 6d

a = 38 - (6×5)

a = 38 - 30

a = 8

The sum of the first 20 terms will be:

= n/2[2a + (n-1)d]

= 20/2[(2×8) + (20-1)5]

= 10[16+(19 × 5)]

= 10(16+95)

= 10(111)

= 1110

3 0

3 years ago

Please help me solve the problem. Thank you

Afina-wow [57]

9514 1404 393

Answer:

see attached

Step-by-step explanation:

The first attachment shows the rectangles with the area inside and the width on the right. The synthetic division of area by width gives the polynomial coefficients for length. The lengths are marked above the rectangles. The synthetic division is shown the 2nd and 3rd attachments.

3 0

2 years ago

A rectangle has an area of 18 square feet. A similar rectangle 1

avanturin [10]

Answer:

$Ratio = 9 :80$

Step-by-step explanation:

Given

$A_1 = 18ft^2$ --- Area of smaller rectangle

$A_2 = 160ft^2$ --- Area of bigger rectangle

Required

Determine the area of the areas.

The ratio is calculated by the dividing the areas of rectangles.

$Ratio = \frac{A_1}{A_2}$

Substitute values for A2 and A1

$Ratio = \frac{18ft^2}{160ft^2}$

$Ratio = \frac{18}{160}$

Simplify the fraction

$Ratio = \frac{9}{80}$

Represent as ratio

$Ratio = 9 :80$

<em>Hence, the ratio of the rectangles is 1 to 9</em>

8 0

3 years ago

Jamie jogged a total distance of 6 and 1 over 2 miles during the months of March and April. If Jamie only jogged 1 over 6 mile e

Talja [164]

For this kind of problems, first find the method to solve, then face the fractions.

If I jog 100 miles in a year, and I do 2 miles a day. How many days did I jog?
We know easily that it is 100 days/ 2 miles/day = 50 days.
So the number of days is total distance / how much a day, or
(6 1/2) divided by (1/6)

7 0

3 years ago

If the coordinates (-2, 1), (1, 1), and (1, 4) are translated 5 units right, the new coordinates would be ______? *If the coordi

Natali5045456 [20]

I would say B . From the 5 Units

4 0

3 years ago

Read 2 more answers