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3 years ago

R1 - Writing and using formulae

Mathematics

1 answer:

svetlana [45]3 years ago

8 0

Answer:

im trying to do a challenge because this kid deleted all my answers

Step-by-step explanation:

You might be interested in

3 discounts of30% ,35%, and 20% are applied to an item what will be thetotal percent markdown?

kobusy [5.1K]

Answer:

85%

Step-by-step explanation:

We have 30, 35, and 20.

Your question is asking what the total percent is. Since these percents are all on only a single item, we can just add them together.

30 + 30 = 60

60 + 25 = 85

There we go! 85%

<u>Brainliest</u> would be awesome.

Your Welcome, and thanks in advance.

6 0

3 years ago

The first five terms of a pattern are shown.

Andrej [43]

Answer:

Step-by-step explanation:

There is a common ratio between consecutive term in the sequence, that is

$\frac{3}{10}$ ÷ $\frac{3}{100}$ = 3 ÷ $\frac{3}{10}$ = 30 ÷ 3 = 300 ÷ 30 = 10

This indicates the sequence is geometric with n th term

$a_{n}$ = a $(r)^{n-1}$

where a is the first term and r the common ratio

Here a = $\frac{3}{100}$ and r = 10 , thus

$a_{n}$ = $\frac{3}{100}$ $(10)^{n-1}$

= $\frac{3}{10^{2} }$ × $10^{n-1}$

= 3 × $10^{-2}$ × $10^{n-1}$

= 3 × $10^{n-3}$

Thus

$a_{n}$ = 3 $(10)^{n-3}$ → C

6 0

3 years ago

What mathematical term describes both 5.3 and 8.2 in the expression 5.3x-8.2y+11.1?

kiruha [24]

Answer:

Step-by-step explanation:

Coefficients

5 0

2 years ago

HELP!!!!

Olin [163]

So if she picked 32 apples on Tuesday, and she picked 15 more apples than on Monday, then she picked 17 apple on Monday, because 17+15=32. A=17

6 0

2 years ago

H(x) = x2<br> j(x) = 2x2-5<br> find h(x) - j(x)

yKpoI14uk [10]

Answer:

Step-by-step explanation:

h(x) - j(x) => $x^2-(2x^2-5)$

The negative sign out in front of the set of parenthesis changes the signs of everything inside the parenthesis, so now we have, without parenthesis:

$x^2-2x^2+5$ which simplifies down to

$-x^2+5$

4 0

2 years ago