Can all help me please

The price of a certain painting increased by 20% during the first year and decreased by 15% during the second year. The price of

Rina8888 [55]

Answer:

A.102%

Step-by-step explanation:

Let cost price of painting=$100

In first year price increased 20%

Then , the price= $100+100(0.20)=$ $120

In second year

Price decreased 15%

Then , the price of painting= $120-120(0.15)$

The price of painting=$102

Percent = $\frac{final\;price}{Initial\;price}\times 100$

By using this formula

Then, we get

Percent of the original price= $\frac{102}{100}\times 100$

Percent of the original price=102%

Option A is true.

8 0

3 years ago

2. Which of the following are terms of the series with nth term T-3n +17? a) 80 b) 170 c)217 d) 312 e) 278 f) 3566

pishuonlain [190]

Answer:

The correct options are a,b,e and f.

Step-by-step explanation:

It is given that the nth terms of the series is defined as

$T_n=3n+17$

Subtract 17 from both the sides.

$T_n-17=3n$

Divide both sides by 3.

$\frac{T_n-17}{3}=n$

The term Tₙ is a term of given series if n is a positive integer.

(a) The given term is 80.

$n=\frac{80-17}{3}=21$

Since n is a positive integer, therefore 80 is a term of given series.

(b) The given term is 170.

$n=\frac{170-17}{3}=51$

Since n is a positive integer, therefore 170 is a term of given series.

(c) The given term is 217.

$n=\frac{217-17}{3}=66.67$

Since n is not a positive integer, therefore 217 is a term of given series.

(d) The given term is 312.

$n=\frac{312-17}{3}=98.33$

Since n is not a positive integer, therefore 312 is a term of given series.

(e) The given term is 278.

$n=\frac{278-17}{3}=87$

Since n is a positive integer, therefore 278 is a term of given series.

(f) The given term is 3566.

$n=\frac{3566-17}{3}=1183$

Since n is a positive integer, therefore 3566 is a term of given series.

Thus, the correct options are a, b, e and f.

7 0

3 years ago

Can you please help me thanksss!!!!!!!

Allushta [10]

The correct answer is: H.

4 0

2 years ago

Please answer correctly !!!!!!! Will mark brainliest !!!!!!!!!!

MissTica

Step-by-step explanation:

x2 + 10x + 24

x2 + 6x + 4x + 24

x(x + 6) + 4(x + 6)

(x + 6) (x + 4)

7 0

3 years ago

Read 2 more answers

Please, help me :)

lord [1]

60+60 - hour heads up
80x-each hour travels 80miles
And both have a variable (x) that represent the number of hours
Equation:
60+60x=80x
Combine terms:
60=20x
Divide both sides by 20:
X=3
Soooo that means at 3:00pm two trains will be at the same distance from Chicago which is 240 miles
Hope this helps

5 0

2 years ago