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Contact [7]
3 years ago
14

How do i find the sum or difference of this fraction

Mathematics
1 answer:
gregori [183]3 years ago
7 0
1st use the Step! Please, Excuse, My, Dear, Aunt, Sally! Ehich also means (PEMDAS) Parenthesis (), Exponents ", Multiple ×, Division÷, Addition+, and Subtraction-. Than your going to solve! (3n+5)×9=n×7
27n+45=7n
27n-7n=-45
20n=-45
n=-45/20= -9/4
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At a pizza Parlour, you can order single, double, triple cheese in the crust. You also have the option to include ham, olives, p
ki77a [65]

Answer:

381 different types of pizza (assuming you can choose from 1 to 7 ingredients)

Step-by-step explanation:

We are going to assume that you can order your pizza with 1 to 7 ingredients.

  • If you want to choose 1 ingredient out of 7 you have 7 ways to do so.
  • If you want to choose 2 ingredients out of 7 you have C₇,₂= 21 ways to do so
  • If you want to choose 3 ingredients out of 7 you have C₇,₃= 35 ways to do so
  • If you want to choose 4 ingredients out of 7 you have C₇,₄= 35 ways to do so
  • If you want to choose 5 ingredients out of 7 you have C₇,₅= 21 ways to do so
  • If you want to choose 6 ingredients out of 7 you have C₇,₆= 7 ways to do so
  • If you want to choose 7 ingredients out of 7 you have C₇,₇= 1 ways to do so

So, in total you have 7 + 21 + 35 + 35 + 21 +7 + 1 = 127  ways of selecting ingredients.

But then you have 3 different options to order cheese, so you can combine each one of these 127 ways of selecting ingredients with a single, double or triple cheese in the crust.

Therefore you have 127 x 3 = 381 ways of combining your ingredients with the cheese crust.

Therefore, there are 381 different types of pizza.

3 0
3 years ago
Help please! I don't know how to do this.
Ira Lisetskai [31]

Answer:

c

Step-by-step explanation:

7 0
3 years ago
hellllpp, with both number 1 and 2, first one to answer gets brainliest, be sure of your answer please!​
Fed [463]

Answer:pretty sure 1 is 23 and 2 is 211200

Step-by-step explanation:

1. 92/4 is 23

2. Just used a calculator on

4 0
2 years ago
At a grocery store a cake was on sale for 22% off if the original price of the cake was c what is the sale price in terms of c
Harlamova29_29 [7]

Answer:

( 39/50 ) * c

Step-by-step explanation:

Sale price = Original price - Reduced price

                 = C - (C * 22%)

                 = ( 39/50 ) * c

[If there's any mistake, please inform me]

5 0
3 years ago
Read 2 more answers
I need help with math!!!!
PilotLPTM [1.2K]

Answer:

id say caculate :) 649.99 and 20% and the same for the others

Step-by-step explanation:

7 0
2 years ago
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