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
viktelen [127]
3 years ago
7

Find the value of the variable

Mathematics
1 answer:
FrozenT [24]3 years ago
7 0

Answer:

z: 19

Step-by-step explanation:

You might be interested in
john is now three times as old as his brother Sam. In five years, john will be twice as old as Sam will be then. Find their pres
shtirl [24]
J=john's age now
s=sam's age now

j=3 times s
j=3s
in five years (j+5,s+5)
j+5=2 times (5+s)
j+5=2(s+5)
j+5=2s+10
subtract 5 from both sides
j=2s+5
use other equation
j=3s
j=2s+5
subsitute
3s=2s+5
subtract 2s
s=5

sam=5
j=3s
j=3 times 5
j=15


john=15
sam=5
4 0
3 years ago
PLEASE PLEASE PLEASE HELP, ILL GIVE 98 POINTS ( show your work)
VLD [36.1K]

Answer:

Step-by-step explanation:

there is a linear relationship

from the table, x changes by +6, y changes by -3 every time

so that means the slope is constant i.e. its a straight line

slope=(y2-y1)/(x2-x1)=-3/6

= -1/2

take the 1st pt, ( 1, -4 )

(y-(-4)) = slop * (x-1)

y+4 = -1/2*(x-1)

ans is A

3 0
3 years ago
Read 2 more answers
100 POINTS! Answers ​
Varvara68 [4.7K]

Answer:

C

Step-by-step explanation:

12*2.5=30

3.5*2.5=8.75

8.75*2=17.5

30*2=60

17.5+60=77.5

4 0
4 years ago
Read 2 more answers
At a dog park , there are 10 black dogs, 5 brown dog, 2 white dog, and 12 multi color dogs​
Sophie [7]
What question are you trying to ask?
5 0
3 years ago
Read 2 more answers
A toolbox has 10 screwdrivers Sid 6 wrenches.
SVEN [57.7K]

Answer: There are 4 more wrenches in the toolbox then the screwdrivers.

Step-by-step explanation: Add the 6 wrenches Sid put in the toolbox with the 8 wrenches Bella added to get 14 wrenches in total. Then, subtract the 10 screwdrivers from the 14 wrenches to get 4 wrenches.

8 0
4 years ago
Other questions:
  • PLEASE HELP ME VERY FASTTTTTTT!!!!!! I WILL GIVE BRAINLIEST TO WHO HELPS ME!!! PLZ:0 ILL MAKE IT WORTH 17 POINTS FOR YOU
    11·2 answers
  • The Johnsons own a home whose market value is $93,000. Their municipality taxes at 80% and the rate is 65 mills or $65 per thous
    10·2 answers
  • Can I please get help with #9
    13·1 answer
  • Janelle is viewing an image of a sculpture. she enlarges it using a scale of 0.2 cm to 1/8 ft. How many centimeters in the image
    7·1 answer
  • Rewrite 8^5 over 8 using a single positive exponent.
    12·1 answer
  • You are going to mix a gallon bucket of window cleaner. The instructions direct you to mix 1 part cleaner to 3 parts water. How
    14·1 answer
  • Raul bought 7 packs of gum for $5.25. What is the cost of a pack of gum in dollars,if all the packs cost the same?
    14·1 answer
  • How do we get 8 3/5>8 6/7​
    5·1 answer
  • Which number is the largest ? <br> -0.65, -0.622, -5/8
    14·2 answers
  • Can someone help me with this math homework please!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!