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3 years ago

An article that is marked $500 was sold for $450 after a discount is given. Calculate the percentage discount given

Mathematics

1 answer:

Gwar [14]3 years ago

6 0

Answer:

10% discounted

Step-by-step explanation:

500× X = 450

while X is the sale price

so we solve for X

(500X)÷500 = 450 ÷ 500

X = 0.9

then we turn that into percentage

0.9 × 100 = 90%

finding the discount percentage

100% - 90% = 10%

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2. You are trying to determine which box of Honey Nut Cheerios to buy, The Family Size box weighs

Katyanochek1 [597]

Answer:

Mega Size

Step-by-step explanation:

Given

Family Size

$Weight = 19.5\ oz$

$Cost = \$3.64$

Mega Size

$Weight = 29.4\ oz$

$Cost = \$4.98$

Required

Determine which has a better value

First, we calculate the unit rate of both.

$Unit\ Rate = \frac{Cost}{Weight}$

For the family size:

$Unit\ Rate = \frac{\$3.64}{19.5\ 0z}$

$Unit\ Rate = \$0.187\ per\ 0z$

For the mega size:

$Unit\ Rate = \frac{\$4.98}{29.4\ 0z}$

$Unit\ Rate = \$0.169\ per\ 0z}$

By comparing the unit rates, the mega size has a better value because it costs cheaper per unit rate

8 0

3 years ago

HELP I NEED HELP IMIDIETLY SORRY I CANT SPELL IM SO CONFUSED

LenaWriter [7]

Answer:

I'm pretty sure you need more information, but I could be wrong

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Given the recursive formula for an arithmetic sequence find the common difference and the 52nd term

Mice21 [21]

Answer:

Common difference(d) $a_{52}$

(21) -10 -548

(22) -7 -323

(23) 10 547

(24) -100 -5118

Step-by-step explanation:

Let the common difference be denoted by 'd'.

Also the nth difference of an arithmetic sequence is given by: $a_{n}=a_{1}+(n-1)\times d$

(21)

We are given a recursive formula as:

$a_{n}=a_{n-1}-10$

The first term is given by:

$a_{1}=-38$

The common difference for an arithmetic sequence is given by:

$a_{n}-a_{n-1}$

Hence, here we have the common difference as:

$d=-10$

The nth term of an arithmetic sequence is given by:

$a_{n}=a_{1}+(n-1)\times d$

Here $a_{1}=-38$ and $d=-10$ .

Hence, $a_{52}=-38+(52-1)\times (-10)$

Hence, $a_{52}=-548$

(22)

$a_{n}=a_{n-1}-7$

$a_{1}=34$

The common difference for an arithmetic sequence is given by:

$a_{n}-a_{n-1}$

Hence, here we have the common difference as:

$d=-7$

Here $a_{1}=34$ and $d=-7$ .

Hence, $a_{52}=34+(52-1)\times (-7)$

Hence, $a_{52}=-323$

(23)

$a_{n}=a_{n-1}+10$

$a_{1}=37$

The common difference for an arithmetic sequence is given by:

$a_{n}-a_{n-1}$

Hence, here we have the common difference as:

$d=10$

Here $a_{1}=37$ and $d=10$ .

Hence, $a_{52}=37+(52-1)\times (10)$

Hence, $a_{52}=547$

(24)

$a_{n}=a_{n-1}-100$

$a_{1}=-18$

The common difference for an arithmetic sequence is given by:

$a_{n}-a_{n-1}$

Hence, here we have the common difference as:

$d=-100$

Here $a_{1}=-18$ and $d=-100$ .

Hence, $a_{52}=-18+(52-1)\times (-100)$

Hence, $a_{52}=-5118$

5 0

4 years ago

A shirt originally cost $42.39, but it is an sale for $38.15. What is the percentage decrease of the price of the shirt? If nece

blsea [12.9K]

C. 42.39 times 0.1 is 4.239. 42.39-4.239= 38.151 which rounds to 38.15

6 0

3 years ago

Which of the following is proper notation to describe the set of all letters in the alphabet?

Mice21 [21]

I think the third option is correct

4 0

3 years ago