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
GarryVolchara [31]
3 years ago
11

Eli Freda and geoff were given £800 to share in the ratio of their ages.

Mathematics
2 answers:
Alik [6]3 years ago
8 0

Answers:

  • Eli gets £180
  • Freda gets £260
  • Geoff gets £360

===========================================================

Explanation:

Let x be some positive real number.

Since each person gets a share of the money based on their ages, we can say that

  • Eli gets 9x pounds
  • Freda gets 13x pounds
  • Geoff gets 18x pounds

The ratio 9x:13x:18x reduces to 9:13:18 when dividing everything by x.

Add up their shares, set the sum equal to 800 pounds, and solve for x.

9x+13x+18x = 800

40x = 800

x = 800/40

x = 20

We can then use this to find each person's share

  • Eli = 9x = 9*20 = 180 pounds
  • Freda = 13x = 13*20 = 260 pounds
  • Geoff = 18x = 18*20 = 360 pounds

As a check: 180+260+360 = 800 which confirms we have the correct split among the three people.

Notice how the ratio 180:260:360 fully reduces to 9:13:18 when you divide each part by the GCF 20.

HACTEHA [7]3 years ago
6 0

Answer:

eli= £180, freda = £260, geoff = £360

Step-by-step explanation:

eli : freda : geoff

9   :    13    :  18

9 + 13 + 18 = 40 parts

800 / 40 = 20

therefore 1 part = £20

20 x 9 = £180

20 x 13 = £260

20 x 18 = £360

You might be interested in
PLS HELP ASAP, ILL MARK BRAINLIEST IF ITS A REAL ANSWER. LOOK AT THE PICTURE.
Snezhnost [94]

Answer:

#1 yes #2

Step-by-step explanation:

I added comments on why it is correct

7 0
3 years ago
A typical cup of coffee contains about 100 mg of caffeine and every hour approximately 16% ofthe amount of caffeine inthe body i
Over [174]

Answer:

a) \frac{dC}{dt} = rC

And for this case we can rewrite the model like this:

\frac{dC}{C} = r dt

If we integrate both sides we got:

ln C = rt + k

If we use exponentials for both sides we got:

C = e^{rt} e^k = C_o e^{rt}

For this case C_o = 100 mg and r = -0.16

So then our model would be given by:

C(t) = 100 e^{-0.16 t}

Where t represent the number of hours

b) C(5) = 100 e^{-0.16*5}= 44.9329

Step-by-step explanation:

Part a

For this case we can assume the proportional model given by:

\frac{dC}{dt} = rC

And for this case we can rewrite the model like this:

\frac{dC}{C} = r dt

If we integrate both sides we got:

ln C = rt + k

If we use exponentials for both sides we got:

C = e^{rt} e^k = C_o e^{rt}

For this case C_o = 100 mg and r = -0.16

So then our model would be given by:

C(t) = 100 e^{-0.16 t}

Where t represent the number of hours

Part b

For this case we can replace the value t=5 into the model and we got:

C(5) = 100 e^{-0.16*5}= 44.9329

7 0
3 years ago
If triangle HIJ is dilated about the center of the triangle to create triangle H'I'J', dilated line A'B' will
nevsk [136]
Pls. see attachment.

7 0
3 years ago
Read 2 more answers
What is the equation of the translated function, g(x), if
Ivanshal [37]

Answer:

D.  g(x)  =  (x+ 4)² + 6

Step-by-step explanation:

Here, the given function is f(x)  = x²

Now,if a graph  x² is translated by (h,k) where:

h = Translation  done towards RIGHT

k = Translation  done towards UP

Then the translated equation is given as:

y =    (x-h)² + k    .... (1)

Now here, the graph is translated 6 UNITS UP and 4 UNITS LEFT.

⇒  h =  - 4 and k = 6

Substituting the value of h, k in (1) , we get:

g(x) =  (x-(-4))² + 6  =  (x+ 4)² + 6  

⇒ g(x)  =  (x+ 4)² + 6

Hence,  the equation of the translated function, g(x) is g(x)  =  (x+ 4)² + 6.

3 0
3 years ago
What is the equation of the line that passes through (–2, 3) and is parallel to 2x + 3y = 6?
Zinaida [17]
2x + 3y = 6
3y = - 2x + 6
y = -2/3x + 2....slope here is -2/3
A parallel line will have the same slope

y = mx + b
slope(m) = - 2/3
(-2,3)...x = -2 and y = 3
now we sub, we r looking for b, the y intercept
3 = -2/3(-2) + b
3 = 4/3 + b
3 - 4/3 = b
9/3 - 4/3 = b
5/3 = b

ur equation is : y = -2/3x + 5/3 (slope intercept form)

y = -2/3x + 5/3
2/3x + y = 5/3
2x + 3y = 5 (standard form)
7 0
3 years ago
Read 2 more answers
Other questions:
  • That both sides are 5 what is the length​
    11·2 answers
  • What is an equation of the line that passes through the point (0, 1) and has a slope of 3
    15·1 answer
  • Each student needs 4 stencils and 6 colored pencils for a project. If a class uses 27 colored pencils for the project, how many
    8·2 answers
  • find the probability of at least 3 successes in a 3 trials of a binomial experiment i which the probability of successe is 50%
    12·1 answer
  • Please tell me the answers and how you got the ansers
    6·2 answers
  • Annie ran 5/8 of a mile. lexi ran 7/10 of a mile. who ran the farthest
    9·1 answer
  • Estimate decimals sums and differences
    7·1 answer
  • I NEED HELP NOW MY ASIGNMENT IS DUE BEFORE 8;00 PLZZZ HELP AND PUT A ANSWER THAT HASN'T BEEN USED(05.02)Mr. Morris is going to s
    10·2 answers
  • A bag contains 12 red checkers and 12 black checkers. 1/randomly drawing a red checker 2/randomly drawing a red or black checker
    12·1 answer
  • What is the vertex form of the quadratic equation represented on the table?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!