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
Anika [276]
2 years ago
5

In​ 2009, a diabetic express company charged ​$38.85 for a vial of type A insulin and ​$30.34 for a vial of type B insulin. If a

total of ​$1695.71 was collected for 50 vials of​ insulin, how many vials of each type were​ sold?
The number of vials of type A insulin sold were ___ and the number of vials of type B insulin sold were ____
Mathematics
1 answer:
Hoochie [10]2 years ago
6 0

Answer:

The number of vials of type A insulin sold were _<u>21</u>__ and the number of vials of type B insulin sold were __<u>29</u>__.

Step-by-step explanation:

Let a = number of type A vials.

Let b = number of type B vials.

38.85a + 30.34b = 1695.71

a + b = 50

            38.85a + 30.34b = 1695.71

(+)        -38.85a - 38.85b = -1942.50

---------------------------------------------------

                               -8.51b = -246.79

b = 29

a + b = 50

a + 29 = 50

a = 21

Answer: The number of vials of type A insulin sold were _<u>21</u>__ and the number of vials of type B insulin sold were __<u>29</u>__.

You might be interested in
How far will a skier travel in 2 1/2 minutes? Explain how you figured it out
Kay [80]

3600 meters 60 seconds would be 1440 traveled

and 1440 + 1440 + 720= <u>3600</u>

Hope this helps :)

8 0
3 years ago
A software coder can type 79 words per minute. She works 5 eight hour days each week (not including
lions [1.4K]

Answer:

A. 189,600

Step-by-step explanation:

(79×60)×5=23700

23700×8=189600

8 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP!!!
ZanzabumX [31]

Answer:

should be 2 excluding the start (origin)

Step-by-step explanation:

3 0
3 years ago
Ms. Ramirez earns 250 each week plus 7% of any amount she sells. she earned 845 last week. How much did she sell ?
prohojiy [21]

Answer:

8500

Step-by-step explanation:

That's my answer and thats correct brainliest me please trust me

5 0
2 years ago
Read 2 more answers
Two dogs run around a circular track 300 m long. One dog runs at a steady rate of 15m per second, the other at a steady rate of
mihalych1998 [28]

Answer:

300 seconds

Step-by-step explanation:

The first dog run at v₁ = 15 m/sec     the second one run at  v₂ = 12 m/sec

we know that  d = v*t  then  t  =  d/v

Then the first dog will take  300/ 12  =  25 seconds to make a turn

The second will take   300 / 15   =   20 seconds to make a turn

Then the first dog in 12 turns 12*25 will be at the start point, and so will the second one at the turn 15.

To check  first dog    12 *  25 = 300

And the second dog 15 * 20 = 300

That means that time required for the two dogs to be at the start point together is

300 seconds, in that time the first dog finished the 12 turns, and the second had ended the 15.

Another procedure to solve this problem is as follows:

between  12  m/sec and  15 m/sec   the minimum common multiple  is 300 ( 300 is the smaller number that accept 12 and 15 as factors         12*15 = 300) Then when time arrives at 300 seconds the two dogs will be again in the starting point

3 0
2 years ago
Other questions:
  • Find the missing number <br> 9/10 minus blank = 1/5
    6·2 answers
  • What is 120 degrees in radians?
    13·2 answers
  • Convert 794mm into m​
    10·1 answer
  • The Pythagorean Theorem and Irrational numbers
    11·1 answer
  • kali has a 6 centimeter ladder and puts the base of the ladder 2 meters away from the tree how high into the tree will the lader
    12·1 answer
  • Who ever knows what 12×75 is I'll give brainliest ​
    15·2 answers
  • What is the value of x?<br> sin 49° = COS X<br> Enter your answer in the box.<br> X =
    6·1 answer
  • Marty says that if a figure is a rhombus, then it is also a parallelogram and a kite. Tell whether or not Marty is correct, and
    13·2 answers
  • I NEED HELP ASAP ITS FOR MY SISTERRRRRRRRRRRRRRRR
    7·1 answer
  • I really need help!! Which box doesn't belong??
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!