All categories

3 years ago

HELP ME PLEASE I WILL GIVE YOU BRAINLIEST

Mathematics

1 answer:

sattari [20]3 years ago

7 0

Answer:

Muliple choice A.

Step-by-step explanation:

Here, we have two sets that need to be subtracted from eachother. So, first we start off like we're reading a book. From top to bottom, from left to right. And we need to match up the numbers together to subtract. (i.e. the top left from both set A and B will be 5 and 1, so we subtract these. And we do that for all the numebrs.

You might be interested in

(answer with "sometimes, always, or never true") <br> A decimal number is an irrational number.

xxMikexx [17]

Answer:

Step-by-step explanation:

Sometimes. If the decimal never repeats itself and never ends, like pi, it is irrational. But if the decimal is .5 or .333333333333333... it either terminates (ends) or repeats itself forever, making it rational.

7 0

3 years ago

2. Provide the next three terms in the sequence and

vivado [14]

The next three terms of -243, 81, -27, 9 is $-3,1, \frac{-1}{3}$ The given series is geometric series

<u>Solution:</u>

Given, series is -243, 81, -27, 9, …

We have to find the next three terms of the above given series.

Now, the given series can also be written as

$-243,-243 \times\left(\frac{-1}{3}\right)^{1},-243 \times\left(\frac{-1}{3}\right)^{2},-243 \times\left(\frac{-1}{3}\right)^{3}$

We can say that, above series is in Geometric Progression with first term = -243 and common ratio = $\frac{-1}{3}$

Then, next three term would be,

$-243 \times\left(\frac{-1}{3}\right)^{4},-243 \times\left(\frac{-1}{3}\right)^{5},-243 \times\left(\frac{-1}{3}\right)^{6} \rightarrow-3,1, \frac{-1}{3}$

Hence, the next three terms of given G.P series are $-3,1, \frac{-1}{3}$

6 0

3 years ago

a shopkeeper sold a pen at loss of 20%. if he had sold it for rs 10 more, he would have gain 5%.find the cost price of pen

AlexFokin [52]

Rs 200
since the questions states that if he sold it for 10 more, he would have gained 5%, 10=5%
1%=2
100%=200

8 0

3 years ago

Please help me with math please

goldfiish [28.3K]

Answer:

no mode

The median and mode are 12

Step-by-step explanation:

The mode is the number that appears most often

Since no number repeats there is no mode

The mean is the average

Add up all the numbers

(12+12+12+12+13+13+15)/7 = 89/7 = 12 5/7

The median is the middle number

There are 7 numbers

7/2 = 3.5

The 4th number is the median

The 4th number is 12

The mode is the number that appears most often which is 12

4 0

2 years ago

Which expression can be used to find the price of a $400 telescope after a 32% markup? Select all that apply.

emmainna [20.7K]

Answer:

Expressions C and D correctly determine the markup price.

Step-by-step explanation:

A markup in mathematics is when an object's price is raised by a certain percentage. Therefore, because we are told that the telescope is originally $400 and is marked up by 32%, we can actually mathematically evaluate this.

When you markup a price, you multiply the original price by $1+x$ , where x is the percentage at which the object is marked up. However, x needs to be in decimal form for it to work out.

$\frac{32}{100} = \small\boxed{0.32}$

Therefore, with this new decimal, we can add 1 to it.

$1 + 0.32=\small\boxed{1.32}$

Finally, we multiply this result by the original price.

$1.32 \times 400=\small\boxed{528}$

Therefore, we can already confirm that Expression C is one way to find the markup price.

We can eliminate expression A because it did not use the formula $1+x$ . It only uses the decimal form of the percentage.
We can eliminate expression B because the division to convert from the percentage form to the decimal form is flawed (the expression divided by 10 instead of 100) and also forgot to add 1 to the determined value.

Now, we can test the math for expressions D and E to see if either of these will equal $528.

Expression D is basically saying to add 32% of 400 to the original price. This would work out because we marked up the original price by 32%. Therefore, we can confirm that Expression D is also an expression that can be used to determine the markup price.

$400 + 400(0.32)\\400(0.32) = 128\\400 + 128 = \small\boxed{528}$

Finally, we also need to check expression E. This expression is saying to add the already marked up price to 400. This would not be correct.

$400 \times 400(1.32)\\400(1.32) = 528\\400 \times 528 = \small\boxed{\$ 211,200}$

Therefore, it has been determined that Expression C & Expression D are both equations that will find a markup price.

7 0

3 years ago