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
tatiyna
3 years ago
9

Kira, goran, & joe sent a total of 90 text messages during the weekend. Goran sent 5 fewer messages than Kira. Joe sent 3 ti

mes as many messages as kira. How many messages did they each send
Mathematics
1 answer:
MissTica3 years ago
4 0

Answer:

Kira sent 19 text messages, Goran sent 14  text messages  and Joe sent 57  text messages.

Step-by-step explanation:

Let be "k" the number of text messages that Kira sent during the weekend, "g" the number of text messages that Gora sent during the weekend and "j" the number of text messages that Joe sent during the weekend.

We know know that they sent a total of 90 text messages then:

k+g+j=90

Goran sent 5 fewer messages than Kira. This is:

g=k-5

And Joe sent 3 times as many messages as Kira. Then:

j=3k

The steps to solve this are:

- Substitute the second equation and the third equatio into the first equation  and then solve for "k":

k+(k-5)+(3k)=90\\\\5k-5=90\\\\5k=90+5\\\\k=\frac{95}{5}\\\\k=19

- Substitute this value into the second equation to find "g":

g=19-5=14

- Substitute the value of "k" into the third equation to find "j":

j=3(19)=57

You might be interested in
#3 is what I need help on
miv72 [106K]

Answer: 11.05

Step-by-step explanation:

Divide 5.20 by 8 to find the price of each bag (which is .65 cents.) Multiple .65 by 20 (13). 15% of 13 is 1.95. 13 - 1.95 is 11.05

PS: 1.95 is the discount. Hope this helps. Have a good day.

3 0
2 years ago
Read 2 more answers
Factorize: Challenge problem:<br> x^2+19x+78<br> help :)
Trava [24]

Answer:

(x + 6)(x + 13)

Step-by-step explanation:

Given

x² + 19x + 78

Consider the factors of the constant term (+ 78) whuch sum to give the coefficient of the x- term (+ 19)

The factors are + 6 and + 13 , since

6 ×13 = + 78 and 6 + 13 = + 19 , then

x² + 19x + 78 = (x + 6)(x + 13) ← in factored form

3 0
2 years ago
Read 2 more answers
C. Identify the following as a constant, linear, or absolute value
bija089 [108]

Answer:

here is the answer bae. Feel free to ask for more

6 0
2 years ago
Read 2 more answers
Plz, help brainliest look at the picture PLZ HELP!!!
Luda [366]

Answer:

i think its B

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Discuss four ways to keep the nervous system healthy
geniusboy [140]

Exercise regularly.

Do not smoke or use tobacco products.

Get plenty of rest.

Eat a balanced diet.  

7 0
2 years ago
Read 2 more answers
Other questions:
  • 40 is what percent of 50? 8% 12.5% 80% 125%
    8·2 answers
  • What is n <br> -8+4(1+5n)=-6n-14
    9·1 answer
  • A class of 195 students went on a feild trip.they took seven vehicles,some cars and some buses .find the number of cars and buse
    14·1 answer
  • HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    13·1 answer
  • Mike sees 3 more fish than Chris. Chris sees 6 fish. How many fish does Mike see? It says use comparison bars. Thanks
    12·2 answers
  • If the endpoints of the diameter of a circle are (−8, 0) and (−12, 2), what is the standard form equation of the circle? A) (x −
    10·1 answer
  • (7p + 18p? - 14p - 5) + (p+ 3)
    15·2 answers
  • Cherries in cherry pie at Barnett's Bakery. 0-29 30-59 60-89- 90-119 129-149 How many cherry pies have 90 or more cherries?
    11·1 answer
  • Samantha and her friends are going on a road trip that is 245 7/50 miles long. They have already driven 128 53/100. How much far
    10·2 answers
  • Do the sides make a unique triangle or no?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!