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
Step2247 [10]
2 years ago
10

150 students took part in a quiz. there are twice as many girls as boys in the school: (a) how many girls were there? (b) how ma

ny were boys?
Mathematics
1 answer:
muminat2 years ago
6 0
75 boys and 75 girls I divided 150 by 2
You might be interested in
In Spetember of 2013, Mario The Baker introduced a new chocolate cake and hired Doug and Jeremy to bake these cakes. Every custo
professor190 [17]

Answer:

There is a 90.32% probability that the cake was baked by Doug.

Step-by-step explanation:

We have these following probabilities:

A 70% probability that Doug bakes the cake.

A 30% probability that Jeremy bakes the cake.

A 40% probability that a cake baked by Doug gets a thumbs up.

A 10% that a cake baked by Jeremy gets a thumbs up.

One cake was selected at random on 10/01/2014 and got a "thumbs up".

1. Find the probability that the cake was baked by Doug.

The probability that a baked cake gets a thumbs up is:

P = 0.7*0.4 + 0.3*0.10 = 0.31

Of those, 0.7*0.4 = 0.28 are baked by Doug.

So the probability is:

P = \frac{0.28}{0.31} = 0.9032

There is a 90.32% probability that the cake was baked by Doug.

4 0
2 years ago
Michael is 12 years older than Brandon. Seventeen years ago, Michael was 4 times as old as Brandon.
4vir4ik [10]

Answer:

21 yrs old

Step-by-step explanation:

m= michael age

b=Brandon age

m=b+12

m-17=4(b-17)= 4b-68 --»»m = 4b -51

//put b+12 instead m// b+12=4b-51

3b=63 --»»b=21

Brandon age is 21

Michael age is 33

3 0
3 years ago
Read 2 more answers
Harry buys a TV priced at £1200 plus 20% VAT.
RoseWind [281]

Answer:

£ 114

Step-by-step explanation:

From the question given above, the following data were obtained:

Price of TV = £ 1200

VAT = 20%

Amount paid = £ 300

Amount paid monthly =.?

Next, we shall determine the VAT. This can be obtained as follow:

VAT = 20% of price of TV

VAT = 20/100 × 1200

VAT = £ 240

Next, we shall determine the total cost of the TV. This can be obtained as follow:

Price of TV = £ 1200

VAT = £ 240

Total cost of TV =?

Total cost = Price + VAT

Total cost = 1200 + 240

Total cost = £ 1440

Next, we shall determine the balance amount he needs to pay. This can be obtained as follow:

Total cost = £ 1440

Amount paid = £ 300

Balance amount =?

Balance = Total cost – Amount paid

Balance = 1440 – 300

Balance = £ 1140

Finally, we shall determine the amount Harry will pay month.

Balance Amount = £ 1140

Number of months = 10

Amount paid monthly =.?

Amount paid monthly = Balance / number of month

Amount paid monthly = 1140 / 10

Amount paid monthly = £ 114

Therefore, Harry will pay £ 114 monthly.

4 0
2 years ago
What is the caputal of idaho
zavuch27 [327]

Capital of Idaho is boise this is not a math question

5 0
3 years ago
Read 2 more answers
4 friends share 5 bars what is each person's shere
Papessa [141]
Each person gets 1 1/4 bars. 

You divide the 5 bars by 4 people: 5/4 = 1 1/4
4 0
3 years ago
Read 2 more answers
Other questions:
  • What does a residual value of –0.8 mean in reference to the line of best fit?
    14·2 answers
  • becky is building a square rabbit cage. the length and width are both 3 feet less than the square dog pen she built for her dog.
    5·2 answers
  • HELP ME PLEASE WILL GIVE BRAINLIEST
    14·2 answers
  • 40 POINTS!!! QUICK PLEASE!!!!Solve each problem and round to the nearest tenth.
    14·1 answer
  • Whats the answer how do you simplify this
    15·1 answer
  • Quotient to a Power Rule (4c^3/7b^4)^2 Enter the result.
    15·1 answer
  • Six friends share 3 oatmeal squares equally. How much of an oatmeal square does each friend get?
    10·2 answers
  • Mai solved the equation below incorrectly. Identify Mai's error.
    5·1 answer
  • What is the equation that represents the line that passes through the points (9, -2) and (12, -5)?
    8·1 answer
  • What is the area, in square meters, of the trapezoid below?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!