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nikdorinn [45]
3 years ago
12

Two apples and five bananas cost £4.20

Mathematics
2 answers:
Nonamiya [84]3 years ago
8 0

Answer:banana = 0.70 and apple = 0.35

Step-by-step explanation:

mezya [45]3 years ago
3 0
Here is the answer :))

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Simplify x² + 3x + 2/X +1
kiruha [24]

Answer:

Step-by-step explanation:

It will be 7x+1

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3 years ago
How do you calculate the volume of a cone when given the height and diameter?
Umnica [9.8K]
That will be radius * radius theeeeeen multiply it on the height 
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3 years ago
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A computer store buys a computer system at a cost of $450.20. The selling price was first at $710, but then the store
anygoal [31]

Answer:

i believe it is 497 after the 30% mark down

Step-by-step explanation:

i subtracted 30% from 710

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3 years ago
In Happyville, the ideal family has four children, at least two of which are girls. If you randomly select a Happyville family t
sleet_krkn [62]

Answer:

0.3125 = 31.25% probability that it is not ideal.

Step-by-step explanation:

For each children, there are only two possible outcomes. Either it is a girl, or they are not. The probability of a child being a girl is independent of any other child. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

0.5 probability of a children being a girl:

This means that p = 0.5

If you randomly select a Happyville family that has four children, what is the probability that it is not ideal?

Not ideal is less than two girls, so this is P(X < 2).

Four children means that n = 4. So

P(X < 2) = P(X = 0) + P(X = 1)

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{4,0}.(0.5)^{0}.(0.5)^{4} = 0.0625

P(X = 1) = C_{4,1}.(0.5)^{1}.(0.5)^{3} = 0.25

P(X < 2) = P(X = 0) + P(X = 1) = 0.0625 + 0.25 = 0.3125

0.3125 = 31.25% probability that it is not ideal.

7 0
2 years ago
An angle measures 6° more than the measure of its complementary angle. What is the measure of each angle?
Tresset [83]

Answer:

42 degrees, and 48 degrees

Step-by-step explanation:

set up an equation to find x, the first angle measure

(x+6)+x=90

then simplify:

2x+6=90

2x=84

x=42

So, the first angle measure is 42, now to find the second angle measure, add 6 to 42, and you will get 48.

8 0
3 years ago
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