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
larisa [96]
4 years ago
14

If ad= 20 and ac=3x+4,find the value of x.

Mathematics
1 answer:
Anna [14]4 years ago
6 0

We have AD =  DC

Thus, AC  = AD + AD = 20 + 20 = 40

We have:

3x + 4 =  40

3x =  40 - 4

3x =  36

x =  36 / 3

x =  12

AD= 20

AC= 40

You might be interested in
Can someone please help I can’t understanddd.
dem82 [27]

Hello,

Dividing by 0 is not defined so let s take x different from 4 and -4 and then we can write:

As

f(x)=x^2-7x+12=x^2-4x-3x+12=x(x-4)-3(x-4)=(x-4)(x-3)\\ \\(f\times g)(x)=\dfrac{3(x-4)(x-3)}{(x-4)(x+4)}=\dfrac{3x-9}{x+4}

Thanks

6 0
3 years ago
Please help with 6 and 7
Maru [420]

Answer:

6a) i- 2hrs 36mins  ii- 3hrs 12mins

b) car A≈ 76.9km/h  car B≈ 62.5km/h

c)------

7a) 35km

b) car A=75km  car B=60km

c) 30km

d) car A≈36mins  car B≈48mins

Step-by-step explanation:

6a) Using the graph follow the lines until they finish then go downwards until you get to the x-axis. The x-axis is going up by 12mins for each square.

b) Using the answer from a, you divide 200km by the time.

For car A 2hrs 36mins becomes 2.6 because 36mins/60mins=0.6

∴ car A: 200/2.6≈ 76.92km/h

For car B 3hrs 12mins becomes 3.2 because 12mins/60mins=0.2

∴ car B: 200/3.2≈ 62.5km/h

7a) Using the graph go down from where the line of car A finished to meet car B. The y-axis is going up by 5km for each square.

b) Starting from the x-axis at 1 hour go upwards to see where you meet the car B line (60km) and car A line(75km). (sorry if that does not really make sense).

c) Difference from car A line to car B:

155km-125km=30km

d) Going across from 50km meet car A line and go down to see it has been travelling for approx. 36mins. Then continue across to car B line, go down to see it reached 50km at approx. 48mins.

Hope this helps.

5 0
4 years ago
NEED HELP ASAP PLEASE ON ALL OF THEM !!!!
ludmilkaskok [199]
SNKRS watch Poseidon last by laughably Lance
5 0
4 years ago
What is 1/10 of 700?
vlabodo [156]
1/10 of 700 would be 700 would be 70 because 70 x 10 = 100 hope this helped
6 0
4 years ago
Read 2 more answers
1) Erica bought a car for $24,000. She had to add Pennsylvania's sales tax of 6%. The total price of the car is closest to?
Lina20 [59]
To find the car's total price, add the tax paid to the car's original price.

 

$32800 + $1968 = $34768

 

The total cost is $34,768

7 0
3 years ago
Read 2 more answers
Other questions:
  • Use Vocabulary in Writing
    14·1 answer
  • Six billion, three million, forty- one thousand sixteen in standard form
    9·1 answer
  • Andrea bought 8 pizzas her friends ate 4 3/4 what fraction of the pizzas are left?
    5·1 answer
  • How do you solve this?
    13·2 answers
  • How much interest would $2,000 earn in one year at the rate of 1.2%?
    11·1 answer
  • What ordered pairs are the solutions of the system of equations shown in the graph below
    13·1 answer
  • which of the following integers cannot be written as the sum of four consecutive odd integers. (A) 16 (B) 40 (C) 72 (D) 100 (E)
    9·2 answers
  • Can you please help?
    8·2 answers
  • PLEASE HELP !! ILL GIVE BRAINLIEST !!
    11·1 answer
  • Please help me thanks
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!