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
DIA [1.3K]
3 years ago
6

Find the measure of AC.

Mathematics
1 answer:
alexira [117]3 years ago
8 0

Answer:

AC = 23 so it be D

Step-by-step explanation:

plug AC = DF ---> 21x-19 = 3x+17

sub. 3x by both sides --> 18x-19 = 17

add 19 to both sides --> 18x = 36

divide both sides by 18, x = 2

plug x back into 21x-19 to find AC

21(2) - 19

42 - 19 = 23

You might be interested in
Deshawn is serving ice cream with the birthday cake at his party.He has purchased 19 1/2 pints of ice cream. He will serve 3/4 o
soldier1979 [14.2K]
26 and no there will not be any left
8 0
3 years ago
Wilma is twice as old as Jamal, and Jamal is 3 years older than Tim. The sum of all their ages is 17.
oee [108]
<span>If x = Jamal's age , 2x = Wilma's age , x - 3 = Tim's age.
The sum of the ages is 17. 
Jamal's age is 5
Wilma's age is 10
Tim's age is 2

Hope this helps!</span>
4 0
3 years ago
An image formed by a circular spotlight has a radius of 124 centimeters. What is the area of the circular image? Use 3.14 for pi
Lemur [1.5K]

area = pi X radius squared

 so area = 3.14 x 124^2

= 3.14 x 15376 = 48,280.64 square centimeters.

5 0
3 years ago
Read 2 more answers
Fiona draws a 24 centimeter rectangle. Greg draws a 24 inch rectangle. Whose is larger in area? How do you know?
TEA [102]
Gregs because Inches are greater in value than centimeters.
8 0
3 years ago
Read 2 more answers
Edith’s age is 1/4 of Ronald’s age. In how many years will Edith’s age be 1/3 of Ronald’s age if Edith is 20 years old?
ruslelena [56]

Answer:

10

Step-by-step explanation:

x = Edith's age = 20 years

y = Ronald's age

x = 20 = y/4

y = 20×4 = 80 years

in z years we have

(x + z) = (y + z)/3

(20 + z) = (80 + z)/3

3(20 + z) = 80 + z

60 + 3z = 80 + z

60 + 2z = 80

2z = 20

z = 10

in 10 years Edith's age will be 1/3 of Ronald's age.

then Edith will be 30, and Ronald will be 90.

30 = 90/3

correct.

7 0
1 year ago
Other questions:
  • What is the value of s and the length of side BC if ABCD is a rhombus?
    8·2 answers
  • Can someone please help me?
    10·1 answer
  • Is two over five irrational numbers
    6·1 answer
  • 0.5,7/16,0.75,19/48 order least to greatest
    5·1 answer
  • HELP ON GEOMETRY!!! PHOTO ATTACHED
    9·2 answers
  • Qué número entero está entre -2 y 5​
    10·1 answer
  • The local baseball team won the national championship last year. At the start of the baseball season, shirts signed by the team
    10·1 answer
  • Mathematics algebra essay
    9·1 answer
  • Hello!
    9·2 answers
  • A line intersects the points (8, 2) and (12, -10). What is the slope of the line in simplest form? m = [?]​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!