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3 years ago

Find the 11th term of the arithmetic sequence 10,-40,160,….

Mathematics

1 answer:

meriva3 years ago

3 0

Answer:

10,485,760

Step-by-step explanation:

Multiply -4

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Discounts and what is the outcome

Pachacha [2.7K]

Answer:

with discount+tax= $23.15

Step-by-step explanation:

board game is 25

discount: 15%

tax: 7.5%

discount means you take off that amount

tax means you add that amount

discount: 15% off

tax: +7.5%

to find 15% of 25 multiply 25 by 15% (15/100=0.15)

25*0.15

= 3.75

then subtract that from 25

25-3.75

=21.25

tax:

0.075*25

=1.875

~1.9

21.25+1.9

=23.15

5 0

3 years ago

can someone help me with this question I tried all apps and it gives me the wrong answer, the due date is today plus its half of

ikadub [295]

Answer:

$4\frac{1}{12}$ miles.

Step-by-step explanation:

The goal of the family is to hike $11 \frac{2}{3}$ miles in total. Converting this to an improper fraction, we need a total of $\frac{35}{3}$ miles.

On Monday the family completed $2 \frac{1}{12}$ miles, or $\frac{25}{12}$ miles.

On Tuesday the family completed $2 \frac{1}{3}$ miles, or $\frac{7}{3}$ miles.

On Wednesday the family completed $3 \frac{1}{6}$ miles, or $\frac{19}{6}$ miles.

Next, we can add the total amount of hiking the family has completed from Monday-Wednesday.

$distance= \frac{25}{12} + \frac{7}{3} + \frac{19}{6}$

In order to add these values, we need to convert all of the fractions so that they have the same denominator. The least common multiple (LCM) of 12, 3, and 6 is 12, so the fractions can all be converted into having a denominator of 12.

Monday's distance $\frac{25}{12}$ already has a denominator of 12.

Tuesday's distance is $\frac{7 * 4}{3 * 4} = \frac{28}{12}$ .

Wednesday's distance is $\frac{19 * 2}{6 * 2} = \frac{38}{12}$ .

Convert the total distance goal to have a denominator of 12 as well. $\frac{35 * 4}{3 * 4} = \frac{140}{12}$ .

Sum the total distance the family has walked on Monday-Wednesday. $\frac{25}{12} + \frac{28}{12} + \frac{38}{12} = \frac{91}{12}$ .

Subtract this value from the total hiking distance. $\frac{140}{12} - \frac{91}{12} = \frac{49}{12}$ . The family needs to walk $\frac{49}{12}$ miles, or $4 \frac{1}{12}$ miles on Thursday to complete their goal.