michellerubyy michellerubyy

01-09-2020
Mathematics

contestada

7r-9s+2r
evaluate for the following expressions for r=7,s=-2 and t=5

Respuesta :

nazz1010 nazz1010

01-09-2020

Answer:

91

Step-by-step explanation:

7(7) - 9(-2)+2(7)

=142+49

=91

Answer Link

zoeydancez zoeydancez

01-09-2020

Answer:

81

Step-by-step explanation:

Simplify it first:

7r-9s+2r = 7(7)-9(-2)+2(7) = 49-(-18)+14

(Since you have 49-(-18) it automatically becomes addition/a positive.)

So you have 49+18=14 which equals 81.

Hope this helps :)

Answer Link

Otras preguntas

how did the colonist react to the tea act?

what is the slope of 2x-3

Can someone help me answer this question? “Describe the ways in which earths “spheres” overlap each other”

Can someone help we are writing a creative writing story with dialog and I have no clue how to finish. One fall afternoon at Staten Island railway ten- year-

All of it please!!!!!!!

HELP 80 points A calorimeter consists of an aluminum cup inside of an insulated container. The cup is weighed on a top-loading balance and is found to have a m

what is goose flesh

consider this sequence:4 10 16 22 28Write the nth term of this sequence.is the number 122 in this sequence.(pls, help me!! that is for tomorrow

In the equation 80 divided by 8 = 8, the number 80 is the ______________________.

Through which of the following media can sound waves travel? A. water and solids only B. air and solids only C. air and water only D. air, water, and so