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
hoa [83]
2 years ago
7

Please help it would be much appreciated

Mathematics
1 answer:
kari74 [83]2 years ago
7 0

Answer:

calcium =1x40=40

chlorine=2x35=70

40+70=110

ca=40/110×100=36.36

when we approximate it become 36.4

thanks

You might be interested in
In Zachs class 3/5 of the 25 students are boys. How many boys are in Zachs class?
LUCKY_DIMON [66]

Answer:

15

Step-by-step explanation:

(3/5)*25=15

4 0
3 years ago
How do I solve this proportional & non proportional functions?
Nikolay [14]
Boy im a about to roast you 
3 0
3 years ago
Write 77.5% as a fraction in simplest form.
stira [4]
31/40 is it in a fraction
6 0
3 years ago
Read 2 more answers
A salesperson earns a commission based on the number and type of vehicle sold. A person selling 6 cars and 3 trucks earns $4,800
madam [21]
4800 divide by 3=1600 (2 cars 1 truck)

4600-1600-3000 (6 cars)

3000 divide by 3 = 1000(2cars)

1000 times 2=2000(4 cars )

4800-2000-2800 (2 cars 3 trucks)

$2,800 is your answer
8 0
2 years ago
Somebody help me with this please .
erastova [34]

Step-by-step explanation:

12. Cos 60° = 8/c

0,5 = 8/c

0,5 c = 8

c = 16

D² = V16²-8²

= V256-64

=V192 = V16×12 = 4V12

= 4V4×3 = 8V3

13. Cos 30° = 6/b

V3/2 = 6/b

V3 b = 12

b = 12/V3

b/Sin B = a /sin A

b/Sin90° = 6/ sin 60°

<u>b</u> = <u> </u><u> </u><u> </u><u>6</u><u> </u><u> </u><u> </u>

1 V3/2

b× <u>V3</u> = 6

2

b = 6× 2/V3

= 12/V3

8 0
4 years ago
Other questions:
  • What is the scientific notation 3,400,000,000
    13·1 answer
  • Which of these is most likely a pair of independent variables? A. how fast you write and how fast you finish your assignment
    8·2 answers
  • Brainielst!! Last 3 questions please!
    13·1 answer
  • Every day you collect 8 pennies and keep them in a jar. The first day you have 8, the second day you have 16, etc. How many penn
    8·2 answers
  • I need help on one of my math questions. It would be most helpful to get the answer as well as an explanation on how to do these
    13·1 answer
  • (a+b)^2 hihhhhhhhhhhhhhhhhhhhh
    7·2 answers
  • What is the solution to the equation 3x + 2(x − 9) = 8x + x − 14?
    8·2 answers
  • Help which is the right one? <br><br> A) SSS<br> B) ASA<br> C) SAS<br> D) SSA
    11·1 answer
  • Round 79.045 to the nearest tenth
    15·2 answers
  • 9 ( x + 4 ) = 63 <br> Solving 2 step equations
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!