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
zysi [14]
3 years ago
7

The perimeter of the isosceles ?ABC with the base BC is equal to 40 cm. Perimeter of the equilateral ?BCD is 45 cm. Find AB and

BC.
Mathematics
1 answer:
Juliette [100K]3 years ago
7 0

Answer: AB = 12.5, BC = 15

<u>Step-by-step explanation:</u>

Perimeter of ΔBCD = BC + CD + BD. Since it is an isoceles triangle, then BC = CD = BD. So, Perimeter of ΔBCD = 3BC

3BC = 45

<u>÷3   </u>    <u>÷3 </u>

 BC = 15

Perimeter of ΔABC = AB + BC + AC.  Since it is an isosceles triangle with BC as the base, then AB = AC. So, Perimeter of ΔABC = 2AB + BC

2AB + BC = 40

2AB + 15 = 40

<u>          -15</u>  <u> -15 </u>

2AB       = 25

<u>÷2         </u>   <u>÷2  </u>

      AB  = 12.5

You might be interested in
12. Which of the following pairs of numbers contains like fractions?
stepladder [879]
So will be choice D.

bc. 5/6 = 10/12 = 2*5/2*6 = 5/6
4 0
3 years ago
the exit to garrett's house is after exit 51 but before exit 62. the number on the exit sing is not a prime nunber. the number i
Alex Ar [27]
52
- is prime? No
- is multiple of 3? No
continue

53
- is prime? Yes
continue

54
- is prime? No
- is multiple of 3? Yes
- is multiple of 4? No
continue

55
- is prime? No
- is multiple of 3? No
continue

56
- is prime? No
- is multiple of 3? No
continue

57
- is prime? No
- is multiple of 3? Yes
- is multiple of 4? No
continue

58
- is prime? No
- is multiple of 3? No
continue

59
- is prime? Yes
continue

60
- is prime? No
- is multiple of 3? Yes
- is multiple of 4? Yes

Therefore 60 is the answer, as it fits all the conditions


Simple trial and error.
5 0
3 years ago
Read 2 more answers
AYUDAAAAAAAAAAAA Un numero es 40% mas que el otro número, si la suma de 2 números es 84 busca los 2 números.
lions [1.4K]

Answer:

Si el número es x, entonces 1.4x + x = 84,

Entonces 2.4x = 84 yx = 84 / 2.4 = 840/24 = 35.

El otro número es 84-35 = 49

Step-by-step explanation:

Espero que te ayudo

Dejame saber : )

7 0
3 years ago
Write the equation of the function that<br> can be modeled by this table?
Alika [10]

Answer:

<em>y = 3x + 5</em>

Step-by-step explanation:

y = mx + b (slope-intercept form)

( x_{1} , y_{1} )

( x_{2} , y_{2} )

Slope m = \frac{y_{2} -y_{1} }{x_{2} -x_{1} }

y - y_{1} = m( x - x_{1} )  (point-slope form of linear equation)

~~~~~~~~~~~~~~~

3 0
2 years ago
1-73.
cricket20 [7]

36inch - 2 feet

72inch - 4 feet

144inch - 8 feet

18 X 2 = 36

1 + 1 = 2

18 x 4 = 72

1 x 4 = 4

18 x 8 = 144

1 x 8 = 8

8 0
2 years ago
Other questions:
  • What percent of the second ten natural numbers are prime numbers
    13·2 answers
  • Can someone please help????
    13·2 answers
  • Who can solve this one example2
    10·1 answer
  • 4. Fraction: Explain what 5/6 means. Write an explanation of the term fraction that should work with 5/6 and %.
    10·1 answer
  • Which graph represents the function f(x)=4⋅3x ?<br> Please help!!!
    11·1 answer
  • Justin wants to buy a new pair of Jean's. If the jeans were originally $50.00, but are on sale with a 30% discount, how much wil
    7·1 answer
  • WILL GIVE BRAINLIEST!
    5·1 answer
  • Help plz?????????/////////////
    8·1 answer
  • The area of a rectangular wall of a barn is 20 square feet. Its length is 8 feet longer than the width. Find the length and widt
    7·1 answer
  • Which of the following points has coordinates that are 5 horizontal units from point A
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!