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
aleksley [76]
3 years ago
14

B is the midpoint of AC and AC=8r-20,and AB=3x-1 Find BC

Mathematics
1 answer:
muminat3 years ago
6 0

Answer:

BC = 26

Step-by-step explanation:

since B is the midpoint of AC, then AB = BC

AC = 8x - 20 & AB = 3x - 1

AC = AB + BC or 2AB

8x - 20 = 2(3x - 1)

8x - 20 = 6x - 2

subtract 6x form each side

2x - 20 = -2

add 20 to each side

2x - 20 + 20 = -2 + 20

2x = 18

x = 9

BC = 3x - 1

BC = 27 - 1

BC = 26

AC = 52

You might be interested in
Marissa deposited $3,900 into a savings account. How much will Marissa have in her account after 7 years and 6 months at a yearl
REY [17]

Marissa wants to know how much she would make using the simple interest calculation.

She will have $4,432.35

Given data

Principal = $3,900

Time = 7 years 6 months = 7.5 years

Rate = 1.82%

I = A - P = $532.35

Equation:

A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

r = R/100 = 1.82%/100 = 0.0182 per year.

Solving our equation:

A = 3900(1 + (0.0182 × 7.5)) = 4432.35

A = $4,432.35

The total amount accrued, principal plus interest, from simple interest on a principal of $3,900.00 at a rate of 1.82% per year for 7.5 years is $4,432.35.

Learn more about simple interest here:

brainly.com/question/20690803

3 0
2 years ago
Marquis used the steps below to find the solution to the inequality Negative 5.6 greater-than-or-equal-to x + 3.6.
Taya2010 [7]

Answer:3.9

Step-by-step explanation:

you have to add the decimal to the exponent

5 0
3 years ago
Read 2 more answers
George and his dad are planning to attend the state fair. An adult ticket is $19.00. The price of an adult ticket is one third t
vovikov84 [41]

Answer:

$19 × 3 + $15 + $1=answer? I think

7 0
2 years ago
Explain how to use the distributive property to find the product 3 x 4 1/5
NikAS [45]

Answer:

12.6

Step-by-step explanation:

The answer is 12.6 and here is the explanation of using the Distributive Property. Because we are multiplying a whole number by a mixed number, we have to multiply the whole number by the whole number in the mixed number and then multiply the whole number by the fraction. In this case, we have 3 x 4 1/5. We multiply 3x4=12 first, and then we multiply 3x1/5 to get 0.6. 12+0.6=12.6. Hope it helps!

5 0
3 years ago
Three times a number plus twice another is 10, while their sum is 10, Find the numbers
Aleks [24]
3a+2b=10 \\\\ a+b=10 \\\\ \boxed{a=10-b} \\\\ 3(10-b)+2b=10 \\\\ 30-3b+b=10 \\\\ -b=10-30 \\\\ -b=-20 \\\\ \boxed{b=20} \\\\ a=10-20 \\\\ \boxed{a=-10}
5 0
3 years ago
Other questions:
  • I have the worst teacher and I need help can anyone help me :(?
    10·1 answer
  • Each day, Lourdes reads 30 pages of a 450-page book. Write a linear equation to represent the number of pages Lourdes has left t
    12·2 answers
  • What property is used to solve 8*(14+7) = (8*14) + (8*7)
    6·2 answers
  • I need help can someone please help me to understand this
    10·1 answer
  • Only a 2 minute job pls help ;/ even if u can only do 1 it wud be gladly appreciated
    15·1 answer
  • A person who is six feet tall casts a 3-foot-long shadow. A nearby pine tree casts a 15-foot-long shadow.
    9·1 answer
  • The top ten scores on a quiz in two classes are listed below.
    7·2 answers
  • The triangle below is a right triangle. What is the length of the missing side? Round your answer to the nearest whole number?
    11·2 answers
  • Evaluate (distributive property)
    5·1 answer
  • 2 ^ 3 * 3 ^ 6 / 3 ^ 4 pls​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!