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
aleksklad [387]
3 years ago
8

David went for a run in his town.

Mathematics
1 answer:
Kazeer [188]3 years ago
5 0
1.2 plus .75 plus 1.34 plus .49 which is 3.78
You might be interested in
The sum of three numbers is 10. Two times the second number minus the first number is equal to 12.
eimsori [14]

<u>Answer:</u>

-10,1,19

<u>Step-by-step explanation:</u>

<u></u>

x+y+z = 10 (Equation 1)

2y-x= 12  (Equation 2)

x-y+2z = 7 (Equation 3)

(Equation 2): -x = -2y+12

                       x = 2y-12 (Equation 4)

(Equation 1) - (Equation 3): 2y-z = 3

                                              -z = -2y+3

                                               z = 2y-3 (Equation 5)

Substitute (4) and (5) into (1)

x+y+z = 10

(2y-12)+y+(2y-3) = 10

5y-15 = 10

5y = 5

y=1

Substitute y=1 into (2)

2y-x= 12

2(1)-x= 12

2-x= 12

-x= 12-2

-x= 10

x= -10

Substitute y=1 and x=-10 into (1)

x+y+z = 10

-10+1+z = 10

z-9 = 10

z = 10+9

z = 19

Order: x = -10, y = 1, and z = 19

8 0
3 years ago
Read 2 more answers
QUESTION 2<br> Find the 8th term for the sequence with the given formula.<br> tn=n2 + 5
Elden [556K]
N I believe but I’m not too sure
6 0
3 years ago
Your friend Phil, asks you what you think about a new scratch-off lottery game. It costs $10 to play this game, There are two ou
weqwewe [10]

Answer: I am going to put a link

maybe its going to help you?

Step-by-step explanation:

http://s3.amazonaws.com/illustrativemathematics/illustration_pdfs/000/001/217/original/illustrative_mathematics_1217.pdf?1390751150

7 0
2 years ago
Can some one please help me with solving this using proofs
marishachu [46]

proof: \:  3(5x + 1) = 13x + 5  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: 15x + 3 = 13x + 5 \\  \:  \:  \:  \:  \:  \:  \: \:  \:  \:  \:  \:  \:  \:  \:  \:   (15x - 13x) + 3 = 5 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  2x = (5 - 3) \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  2x = 2 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: x = (2 \div 2) \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  x = 1
8 0
3 years ago
Help please :) I would appreciate it if you also provided a explanation it's okay if there is none :))
Oksi-84 [34.3K]

Answer:

7x^2 + 7

Step-by-step explanation:

So you collect the "like-terms". 3x^2 is not the same as 7, however, 4x^2 has the same term as 3x^2, so you add those together and then join the 7 in the expression.

Hope that explanation makes sense

8 0
3 years ago
Read 2 more answers
Other questions:
  • How do you simplify -2x(x+3)-(x+1)(x-2)
    15·2 answers
  • At a tailor shop, it costs $6.79 to shorten a pair of pants and 4 times as much to mend a dress it would cost Lisa a) $19.47 b)
    15·1 answer
  • inclusive of a 6.7% sales tax, a simone ring sold for $1707.20. Find the price of the ring before the tax was added.
    8·1 answer
  • 27. TEMPERATURE Eleven Fahrenheit temperatures are shown on a map during
    6·1 answer
  • it took 8 quarts of paint to paint two sides of a garage. If the third side is the same size as each of the first two sides, how
    8·1 answer
  • Please help! I'm in 7th grade thanks!!
    7·1 answer
  • Please help, with give lots fo points
    8·1 answer
  • The number of ice cubes in a drink and the temperature of the drink, what kind of association is that
    6·1 answer
  • In a video game, val scored 30%fewer points than Peeta. Peeta scored 1060 points.
    15·2 answers
  • Find the median of the following data:10, 16, 15, 14, 8, 21, 10, 5, 19, 18, 4, 5, 16, 12, 10, 9
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!