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
CaHeK987 [17]
3 years ago
12

10 POINTS

Mathematics
1 answer:
yarga [219]3 years ago
8 0

Answer:

       i dont know sorry

Step-by-step explanation:

You might be interested in
Leah's age is twice her cow old are Leah and her cousin?usin's age. If they add their ages together they get 36. How old are Lea
nignag [31]
Okay so lets call Leah "L" and her cousin "C". We know that L+C=36 ... we also know that Leah is twice her cousins age. Therefore, L=2 times C, or L=2C. This is because Leah's age is equivalent to twice as much as her cousin's. 
Now that you know that L=2C, you can plug this back into the equation. This should make it so that's there's only one variable now! 
L+C=36
(2C)+C=36   ... here we subbed in L=2C
3C=36     ... we add up the C's
C=12   ... we isolate for C by dividing both sides by 3

So her cousin's age is 12 years old. Leah's age is twice that. Thus, she's 24. If you add the two up: 12+24, you indeed get 36. Hope that helps :))
4 0
4 years ago
The length of a rectangular garden is 8m greater than twice the width the area of the garden is 280m^2 what is the width of the
yarga [219]

Step-by-step explanation:

Given :-

The length of the garden 8m greater than 2 times the width.

Area of the garden is 280 m²

Let us consider the length as x and width as y.

Sp, we can day length as :-

x = 8 + 2y ---(1)

Now, we know that:-

Area of Rectangle = Length × Breadth

280 = x * y

We can replace the value of x now,

280 = y × ( 8 + 2y)

280 = 8y + 2y²

2y² + 8y - 280 = 0

y² + 4y - 140 = 0

Factorise it.

(y -10)(y + 14)

Cancelling -ve value, we get the width as 10 metres.

<u>Hope</u><u> </u><u>it</u><u> </u><u>helps</u><u> </u><u>:</u><u>)</u>

5 0
3 years ago
Read 2 more answers
Prove algebraically that 0.5 recurring = 5/9
weeeeeb [17]

Answer:

see explanation

Step-by-step explanation:

We require 2 equations with the recurring part after the decimal point.

Let x = 0.555..... → (1)

Multiply both sides by 10, then

10x = 5.555..... → (2)

Subtract (1) from (2) thus eliminating the recurring decimal

(10x - x) = (5.5555 - 0.5555 ), that is

9x = 5 ( divide both sides by 9 )

x = \frac{5}{9}

5 0
3 years ago
Find the circumference of the circle to the nearest tenth. Use 3.14 for pi.
katrin2010 [14]

Answer:157 m

Step-by-step explanation:you need to multiply 3.14*25*2

3 0
4 years ago
A motorboat covers the distance from one pier to the other pier in 4 hours and the way back in 5 hours. What is the speed of the
aleksklad [387]
R = speed in still water
r + c = speed with current
r - c = speed against current

3.5(r + c) = 70
r + c = 20
c = 20 - r

4(r + c) = distance from pier to pier
5(r - c) = distance from pier to pier
4(r + c) = 5(r - c)
4(r + 20 - r) = 5(r - 20 + r)
80 = 10r - 100
180 = 10r
18 = r
The speed in still water is 18 km/hour
3 0
3 years ago
Other questions:
  • Pls help. First answer marked as brainliest
    6·1 answer
  • What is the 25th term of this arithmetic sequence? 3, 9, 15, 21, 27, ...
    6·1 answer
  • Statewide, there are 20 full-time employees to every 3 part-time employees. If there are 250,000 full-time employees, how many p
    7·1 answer
  • Someone please help me!!!!!!!
    11·1 answer
  • Elvaluate the expression.<br>9!/3!<br>a) 3<br>b) 6<br>c) 60,480<br>d) 362,874​
    5·1 answer
  • Which are examples of non-statistical questions? Questions Question 1 What is Sasha's favorite movie? Question 2 What is Stacey'
    5·2 answers
  • A teacher recorded the number of days her students went on vacation. Which statements describe the data? Select all that apply.
    14·1 answer
  • Answer all these questions please
    14·1 answer
  • Hii please help i’ll give brainliest if you give a correct answer
    12·2 answers
  • Solve the inequality.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!