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
Sever21 [200]
3 years ago
5

Sophia and Tom share a sum of money in

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
6 0

Answer:

  £100

Step-by-step explanation:

The difference in number of ratio units is 5-3 = 2, so each ratio unit represents £40/2 = £20.

Tom's received 5 ratio units, or £20 × 5 = £100.

__

Sophia received £60.

You might be interested in
Joni has a box that a mass of 67 dekagrams she converts this to centigrams her work is shown below
7nadin3 [17]
<h3>✽ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ✽</h3>

➷ Joni should have multiplied by 1000 because 1 dekagram is equal to 1000 centigrams.

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

4 0
3 years ago
Read 2 more answers
Which of the following is the closest to X?<br> a. 27 in<br> b. 32 in<br> c. 25 in<br> d. 20 in
Olenka [21]

Answer:

a.27

Step-by-step explanation:

Using Pythagoras theorem:

x=sqrt(6^2+26^2)

x=26.683..

By rounding, x=27

7 0
3 years ago
Read 2 more answers
A commuter must pass through 5 traffic lights on her way to work and will have to stop at each one that is red. She estimates th
sergij07 [2.7K]

Answer:

(a) The mean or expected value of <em>X </em>is 2.2.

(b) The standard deviation of <em>X</em> is 1.3.

Step-by-step explanation:

Let <em>X</em> = number of times the traffic light is red when a commuter passes through the traffic lights.

The probability distribution of <em>X</em> id provided.

The formula to compute the mean or expected value of <em>X </em>is:

\mu=E(X)=\sum x.P(X=x)

The formula to compute the standard deviation of <em>X </em>is:

\sigma=\sqrt{E(X^{2})-(E(X))^{2}}

The formula of E (X²) is:

E(X^{2})=\sum x^{2}.P(X=x)

(a)

Compute the expected value of <em>X</em> as follows:

E(X)=\sum x.P(X=x)\\=(0\times0.06)+(1\times0.25)+(2\times0.35)+(3\times0.15)+(4\times0.13)+(5\times0.06)\\=2.22\\\approx2.2

Thus, the mean or expected value of <em>X </em>is 2.2.

(b)

Compute the value of E (X²) as follows:

E(X^{2})=\sum x^{2}.P(X=x)\\=(0^{2}\times0.06)+(1^{2}\times0.25)+(2^{2}\times0.35)+(3^{2}\times0.15)+(4^{2}\times0.13)+(5^{2}\times0.06)\\=6.58

Compute the standard deviation of <em>X</em> as follows:

\sigma=\sqrt{E(X^{2})-(E(X))^{2}}\\=\sqrt{6.58-(2.22)^{2}}\\=\sqrt{1.6516}\\=1.285\\\approx1.3

Thus, the standard deviation of <em>X</em> is 1.3.

4 0
4 years ago
Read 2 more answers
What is the value of the expression below when z=7 6z-2
horsena [70]

Answer:

the answer is 40

Step-by-step explanation:

U multiply then subtract.

6 0
3 years ago
A and B have coordinates –2 and 10 on a number line. If it is marked off into 10 congruent segments, which one of the following
Rasek [7]
Your answer will be D
8 0
4 years ago
Read 2 more answers
Other questions:
  • How do u do cross multiplication
    15·1 answer
  • What is the product of two reciprocals
    13·1 answer
  • Can someone help me with #29???
    7·1 answer
  • The point (-4,4) is a solution for the system contains lines ____and ____
    14·1 answer
  • At a grocery store, Ruth sees that a 15-ounce can of pumpkin costs $1.59 and a 29-ounce can of pumpkin costs $3.05. Which is a b
    10·1 answer
  • BRAINLIEST ASAP AND 15 POINTS Sawyer is creating a scaled drawing of the pentagon for his social studies class. The Pentagon is
    14·1 answer
  • The ratio of ages of kissi and esinam is 3:5 and esinam is 3:5 The sum of ages of all 3 is 147 years.whats the age difference be
    11·1 answer
  • What is the value of t in the following equation?
    13·1 answer
  • Subscribe to Spectisy,Thanks!
    13·2 answers
  • Andrea wants to plant a garden and surround it with decorative stones.She has enough stones to enclose a rectangular garden with
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!