1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
drek231 [11]
3 years ago
6

If your chemistry grade is broken down so that 70% of it is exams, 20% is a lab, and 10% is homework, and your average scores ou

t of 100 points in each area are:
exams 85
labs 75
homework 96
Calculate your weighted average.
Mathematics
1 answer:
vodomira [7]3 years ago
6 0
84.1

(85 x 0.7) + (75 x 0.2) + (96 x 0.1) = 84.1
You might be interested in
I need help for these questions please
Marat540 [252]
A) 90-55=35 since a right angle is 90 total\
b)ii
7 0
2 years ago
The park has a circular track with a radius of 7.6 yds. How many whole yards of fencing would they need to purchase to enclose t
ivolga24 [154]

Answer:

48 yards

Step-by-step explanation:

we know that

The circumference of a circle is equal to

C=2\pi r

we have

r=7.6\ yd\\\pi=3.14

substitute

C=2(3.14)(7.6)=48\ yd

7 0
3 years ago
Read 2 more answers
The percent frequency distributions of job satisfaction scores for a sample of information systems (IS) senior executives and mi
Lesechka [4]

Answer:

c. 0.83

d. 0.28

Step-by-step explanation:

See solution below

8 0
3 years ago
One sign lights up every 10 seconds. One sign lights up every 12 seconds. If they have just lit up at the same time, how many se
andrew11 [14]

Answer:

It will take 60 seconds for the signs to light up at the same time again.

Step-by-step explanation:

Given:

One sign lights up every 10 seconds

One sign lights up every 12 seconds

They have just lit up at the same time.

To find in how many seconds will it take for the signs to light up at the same time again.

Solution:

In order to find the time in seconds will it take for the signs to light up at the same time again, we need to find the least common multiple of the the times for which the given signs light up.

The numbers are 10 and 12.

To find the LCM, we will list the multiples of each and check the least common multiple.

The multiples of 10 and 12 are :

10\rightarrow 10,20,30,40,50,60,70

12\rightarrow 12,24,36,48,60

thus, we can see that 60 is the least common multiple.

Thus, the signs will light up at the same time time after every 60 seconds.

7 0
3 years ago
A box contains 3 items that are labeled a, b, and
Mars2501 [29]

you could pick:

 A & B

 A & C

B & C

B & A

C & A

C & B


7 0
3 years ago
Other questions:
  • Find the sum: (3x^2 + 5x − 8) + (5x^2 − 13x − 5)
    7·2 answers
  • How to solve -12+7x=x
    15·1 answer
  • I need help with this question
    12·2 answers
  • The difference between two numbers is 7194. If the subtrahend is 12,806, find the minuend.
    7·1 answer
  • Hello going to fail and not make it to highschool if I don’t pass this test!! Please help
    14·1 answer
  • NO LINKSS!! HELPP ME PLS IM TRYING TO GRADUATE PLSS HELP MEE Write the slope-intercept inequality for the graph below. If necess
    8·1 answer
  • I need help ASAP! <:
    13·2 answers
  • simplify 5ab+9a-ab-7a and justify each step as associative , distributive, commutative, or additive property.
    12·1 answer
  • A rectangular banner has a perimeter of 192 inches and a length of 60 inches.
    13·1 answer
  • Un estudiante de Astronomía sabe que Venus le da la vuelta al Sol 225 días y Marte 687 días . Si sabe que la última vez que v s
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!