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4 years ago

I need help in these pretty please :)

Mathematics

2 answers:

GaryK [48]4 years ago

7 0

Answer:

see below

Step-by-step explanation:

= 84 / 3 = 28

= 2 * 28 = 56

= 1 * 28 = 28

280 / 8 = 35

= 3 * 35 = 105

= 5 * 35 = 175

2100 / 7 = 300

= 4 * 300 = 1200

= 3 * 300 = 900

420 / 6 = 70

= 1 * 70 = 70

= 2 * 70 = 140

= 3 * 70 = 210

360/8 = 45

45 * 5 = 225

45 * 1 = 45

45 * 2 = 90

1000 / 25 = 125

jenny = 125 x 5 = 625

chris = 125 x 3 = 375

3000 / 10 = 300

fred = 7 * 300 = 2100

freda = 3 * 300 = 900

2842 / 7 = 406

adults = 5 * 406 = 2030

children = 2 * 406 = 812

Licemer1 [7]4 years ago

5 0

Answer:

Step-by-step explanation:

84 / 3 = 28

2 * 28 = 56

1 * 28 = 28

280 / 8 = 35

3 * 35 = 105

5 * 35 = 175

2100 / 7 = 300

4 * 300 = 1200

3 * 300 = 900

420 / 6 = 70

1 * 70 = 70

2 * 70 = 140

3 * 70 = 210

360/8 = 45

5 * 45 = 225

1 * 45 = 45

2 * 45 = 90

1000 / 25 = 125

jenny = 125 x 5 = 625

chris = 125 x 3 = 375

3000 / 10 = 300

fred = 7 * 300 = 2100

freda = 3 * 300 = 900

2842 / 7 = 406

adults = 5 * 406 = 2030

children = 2 * 406 = 812

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Please solve the problem with steps

Debora [2.8K]

Answer:

Infinite series equals 4/5

Step-by-step explanation:

Notice that the series can be written as a combination of two geometric series, that can be found independently:

$\frac{3^{n-1}-1}{6^{n-1}} =\frac{3^{n-1}}{6^{n-1}} -\frac{1}{6^{n-1}} =(\frac{1}{2})^{n-1} -\frac{1}{6^{n-1}}$

The first one: $(\frac{1}{2})^{n-1}$ is a geometric sequence of first term ( $a_1$ ) "1" and common ratio (r) " $\frac{1}{2}$ ", so since the common ratio is smaller than one, we can find an answer for the infinite addition of its terms, given by: $Infinite\,Sum=\frac{a_1}{1-r} = \frac{1}{1-\frac{1}{2} } =\frac{1}{\frac{1}{2} } =2$

The second one: $\frac{1}{6^{n-1}}$ is a geometric sequence of first term "1", and common ratio (r) " $\frac{1}{6}$ ". Again, since the common ratio is smaller than one, we can find its infinite sum:

$Infinite\,Sum=\frac{a_1}{1-r} = \frac{1}{1-\frac{1}{6} } =\frac{1}{\frac{5}{6} } =\frac{6}{5}$

now we simply combine the results making sure we do the indicated difference: Infinite total sum= $2-\frac{6}{5} =\frac{10-6}{5} =\frac{4}{5}$

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3 years ago

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16oz=1 pound blank ounces equal 4.5 oz

nevsk [136]

.28125 lb? I did 16/4.5 and it equals 3.5555, then we did 1/3.5555 then we got .28125 lb
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3 years ago

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Substitute for p and solve for r.

schepotkina [342]

P is being divided with r

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4 years ago

Taylor is comparing the prices of two mattress cleaning companies. Company A charges $30 per mattress and an additional $15 as s

Oduvanchick [21]

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3 years ago

Yakvenalex [24]

Answer:

D.648 inches

Step-by-step explanation:

A yard is a unit that mostly used in America and Canadia to measure the length of something field-size, so it's used a lot in sport. One yard equal to three feet, while one foot equals to 12 inches. There is a higher unit than yard called miles which equals to 1760 yards or 1.60934 kilometers.

Since the measurement is 18 yards, the length in feet will be: 18 yards * 3 feet/yard= 54 feet.

The measurement in inch will be: 54 feet * 12 inches/feet = 648 inches.

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3 years ago