A student’s final grade in chemistry is determined by the following weights: Quizzes 5%
Exam 1 20%
Exam 2 20%
Lab Reports 15%
Research Paper 15%
Final Exam 25%

The student received the following grades:

Lab reports: 75 80 70 75 85 69 90 75
Quizzes: 85 60 70 0 75 80 80 80
Exam 1: 80
Exam 2: 70
Research Paper: 85
Final Exam: 75

What is the average quiz score?

(round to the hundredths place)

mark brainliest

step-by-step explanation:

2 tens + 6 ones

1 ten + 16 ones

0 tens + 26 ones

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

yes because they have the same amount of green and blur marbles.

step-by-step explanation:

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2