8-3(x+6)
explanation:
it just makes sense lol but also bc “8 decreased by three” means “8 minus 3”
then “times” means “multiply”
then “a sum” means “addition”
then “a number” since we don’t know what a number is then we use “x”
“and” means “addition”
“a number and six” means “x+6”
Since you're adding x feet to the length which is 12 feet:
New area: (12+x)10.5
Answer: 27.44 % decrease in gas prices
Step-by-step explanation: First subtract 2.15 by 1.56 to get 0.59
then divide it by the starting value which is 2.15
0.59 divided by 2.15 is approximately 0.2744
then multiply times 100 to get 27.44 %
hope this helps mark me brainliest if it helped
3.0 NOT SURE IF ITS CORRECT
A. 12*x + 2*y = 90
6*x + 2*y = 60
To write system of equation you just need to sum all solo and ensemble acts and make it equal to how much they will last for.
B. Here we can multiply second equation with negative 1 and add it to first equation.
6x = 30
x = 5
now we replace x in any of 2 equations to get y.
30+2y = 60
2y = 30
y=15
Solo acts are 5 minutes long and ensemble acts are 15 minutes long
