3 years ago

A markup of 75% on cost is equivalent to a 75% markup on selling price.

Mathematics

1 answer:

Archy [21]3 years ago

4 0

Answer:

Im pretty sure the answer is true

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You bike 1 mile the first day of your training, 1.3 miles the second day, 1.9 miles the third day, and 3.1 miles the fourth d

JulsSmile [24]

Answer:

19.9 miles

Step-by-step explanation:

In this problem we have:

$d_1=1 mi$ is the distance travelled during the 1st day

$d_2=1.3 mi$ is the distance travelled during the 2nd day

$d_3=1.9 mi$ is the distance travelled during the 3rd day

$d_4=3.1 mi$ is the distance travelled during the 4th day

We notice that the difference between the distance travelled on the (n+1)-th day and the distance travelled on the n-th day doubles every day. In fact:

$d_2-d_1=0.3\\d_3-d_2=2\cdot 0.3 = 0.6\\d_4-d_3=2\cdot 0.6 = 1.2$

Which can be rewritten using the general formula:

$d_{n+1}-d_n=2(d_n-d_{n-1})$

This means that

$d_{n+1}=d_n+2(d_n-d_{n-1})$

By applying this formula recursively, we can find the 7th term, which is the distance travelled on the 7th day:

$d_1=1\\d_2=1.3\\d_3=1.9\\d_4=3.1\\d_5=3.1+2\cdot 1.2=5.5\\d_6=5.5+2\cdot 2.4=10.3\\d_7=10.3+2\cdot 4.8=19.9 mi$

So, the distance travelled on the 7th day is 19.9 miles.

7 0

3 years ago

Monica paid sales tax of $1.60 when she bought a new bike helmet. If the sales tax rate was 8%, how much did the store charge fo

Lapatulllka [165]

To find the total from the percent part you have, you divide the part by the percentage.
1.50÷0.05=30
The total is $30
The total the store charged, including sales tax, is $31.50.

5 0

2 years ago

Factor completely x_ - 36. (1 point)<br> (x + 6)(x - 6)<br> (X+6)(x+6)<br> (X-6)(x - 6)<br> Prime

Andrews [41]

Answer:

Step-by-step explanation:

6 0

3 years ago

Martin thinks of two numbers. He says, "The Highest Common Factor (HCF) of my two numbers is 6 The Lowest Common Multiple (LCM)

sergiy2304 [10]

Answer:

30 and 42

Hope this helps

3 0

2 years ago

What is equivalent to a negative square root or -1

garri49 [273]

sqrt (-1) = i the imaginary number

so the negative sqrt (-1) = -i

7 0

3 years ago

A markup of 75% on cost is equivalent to a 75% markup on selling price.​

A markup of 75% on cost is equivalent to a 75% markup on selling price.