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
mash [69]
2 years ago
13

It’s a 4 digit number. The tens are double the ones. The thousands are double the tens. The sum of the digit is 19

Mathematics
1 answer:
Zielflug [23.3K]2 years ago
7 0
The tens are double the ones: c= 2d
the thousands are double the tens:
a = 2c = 4d
the sum of the digits is 19:: a+b+c+ d = 19

Substitute for a and c to get:
4d + b + 2d + d = 19
b + 7d = 19
d=2;b=5;0=4;a=8
Ans:8542
You might be interested in
Find the midpoint of the line segment given endpoints (9,-5)(8,2)
Karolina [17]

Answer:(4,5)

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
The coach recorded how fast his runners ran 1 mile. Emmett ran a mile in 9.73 minutes Kate ran a mile in 10.87 minutes how many
igor_vitrenko [27]

Complete Question

The coach recorded how fast his runners ran 1 mile. Emmett ran a mile in 9.73 minutes, Kate ran a mile in 10.87 minutes, and Rubin ran a mile in 8.46 minutes. How many more minutes did Emmett run than Robin?

a. 1.37 minutes

b. 1.27 minutes

c. 2.27 minutes

d. 1.27 seconds

Answer:

1.27 minutes

Step-by-step explanation:

Emmett ran a mile in 9.73 minutes

Kate ran a mile in 10.87 minutes

Rubin ran a mile in 8.46 minutes.

How many more minutes did Emmett run than Robin?

This is calculated as:

Number of minutes Emmett ran - Number of minutes Rubin ran

= 9.73 minute - 8.46 minutes

= 1.27 minutes

Option b is correct

5 0
3 years ago
Help on this circle plzzzzz
Wittaler [7]
6x - 28 = 4x + 20
2x - 28 = 20
2x = 48
x = 24
6(24) - 28 = 116

mRS = 116°
5 0
3 years ago
The sum of two numbers is 20. Their difference is 14. Find the numbers.
Mila [183]
3 and 17
17-3=14

hope that helps
5 0
4 years ago
Read 2 more answers
Please help!
zhannawk [14.2K]

Answer:

Step-by-step explanation:

cylinder's height=3×(diameter of sphere)=3×6=18 cm

radius of cylinder=3 cm

volume of cylinder=π r²h=π(3)²×18=162 π cm³

volume of sphere=4/3 π(3)³=36 π cm³

reqd. empty space=162 π-3×36π=54 πcm³

7 0
3 years ago
Other questions:
  • Solve for answer to how do you factor 8 + 12
    8·1 answer
  • Which of the following is a function? A.) {(-2, -4/5), (-1,-1),(0,0),(-1,-1)} B.) {(-2,0),(0,1/2),(0,3/4),(1,1)} C.) {(-2,1),(-1
    8·1 answer
  • There are 4 generations. Daughter, mother, grandma, and great-grandma. The daughter is 44 less than the grandma's age. The great
    15·1 answer
  • The amounts of e-waste generated in a region during two years were 14,200,000 tons and 10,700,000 tons. What was the total e-was
    6·2 answers
  • Can somebody help me with this :) ??
    14·1 answer
  • Is 85 a multiple of 6
    11·1 answer
  • I am so Bored <br> Anyone want to talk I am dying of boredom <br> Also Favorite Color?
    13·2 answers
  • William had $78.12 in his savings account. after making a deposit,he had $114.08. if d represents the amount of the deposit, whi
    12·2 answers
  • Pls help me, i will actually give BRAINLIEST:
    7·1 answer
  • Plzzzz brainlest I swear
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!