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STALIN [3.7K]
2 years ago
15

PLAS HELP MAH IM ALMOST DONE >:( 25 POINTS AND BRAINLIEST!

Mathematics
1 answer:
Novay_Z [31]2 years ago
5 0

Answer:

Remember, here -- with addition -- the parentheses are just extras there to throw you off track!

We can remove the parentheses:

7a + 9 + 4a - 7

Now simplify!

7a + 4a + 9 - 7

11a + 2

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The cost of a train ticket increases by
erastova [34]

It costs $122.4 dollars before the increase.

<h3>How to calculate percentage of a number. Use the percentage formula: P% * X = Y</h3>
  • Convert the problem to an equation using the percentage formula: P% * X = Y.
  • P is 17%, X is 7.20, so the equation is 17% * 7.20 = Y.
  • Convert 10% to a decimal by removing the percent sign and dividing by 100: 10/100 = 0.10.

Therefore, It costs $122.4 dollars before the increase.

Learn more about Finding the Percentage here:

brainly.com/question/24862040

6 0
2 years ago
What is 40 3/4 as a decimal
soldier1979 [14.2K]

Answer:

40.75

Step-by-step explanation:

3/4 = 0.75

40 + 0.75= 40.75

4 0
3 years ago
Given f(x)= 2x²+4x-6 and g(x)=2x-2, find each function
valkas [14]
F(x)= 2x²+4x-6 and g(x)=2x-2, find each function
1. (f/g) (x) = f(x)÷g(x) = (2x²+4x-6)÷(2x-2)
First factor both top and bottom:
(2x-2)(x+3)÷(2x-2) = x+3

2. f(a + 2) = plug (a+2) in anywhere there is an x in f(x)=2x²+4x-6 -->
2(a+2)^2 +4(a+2)-6 = 2(a^2+4a+4)+4a+8-6, now distribute:
2a^2+8a+8+4a+2, combine like terms
2a^2+12a+10

3. g(a/2) = plug (a/2) in anywhere there's an x in g(x)=2x-2:
2(a/2)-2 = a-2
5 0
3 years ago
Given g(x)= 10x + 2, find g(2)
nataly862011 [7]

Answer:

22

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Janae's savings account has $50 on September 19. If she plans to save $5 every day, how much money will Janae have in her saving
Akimi4 [234]

Janae will have $ 95 in her account after 10 days.

<h3>What is an Arithmetic Progression?</h3>

A sequence of numbers that has a fixed common difference between any two consecutive numbers is called an arithmetic progression (A.P.)

Given,

Amount in Janae's account = $ 50

Amount she wishes to save for 10 days = $ 5

This scenario models an arithmetic progression(A.P)

In an A.P,

a _n = a + (n-1)d

where a _n = nth term, a is the first term, n is the no. of terms and d is the common difference.

In this question, a = 50, n = 10, d = 5 and we have to find out a _n

Therefore, a _n = 50 + (10-1)x5

                         = 50 + 45 = 95

Answer:- Janae will have $ 95 in her account after 10 days.

To learn more about arithmetic progression, refer to:

brainly.com/question/24191546

#SPJ10

8 0
1 year ago
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