All categories

2 years ago

Amy has 2$, Jack has 3 times as much as Amy. Catherine has twice as much as Jack. How much does Catherine have?

Mathematics

2 answers:

lakkis [162]2 years ago

6 0

Answer: 12 dollars

Step-by-step explanation:

2x3x2=12

Easy math

worty [1.4K]2 years ago

4 0

Catherine has 12.

2 times 3 is 6. 6 times 2 is 12. Final answer is 12.

You might be interested in

In a survey of adults who follow more than one sport, 30% listed football as their favorite sport. You survey 15 adults who foll

maxonik [38]

Answer: 0.5

Step-by-step explanation:

Binomial probability formula :-

$P(x)=^nC_x\ p^x(q)^{n-x}$ , where P(x) is the probability of getting success in x trials , n is the total trials and p is the probability of getting success in each trial.

Given : The probability that the adults follow more than one game = 0.30

Then , q= 1-p = 1-0.30=0.70

The number of adults surveyed : n= 15

Let X be represents the adults who follow more than one sport.

Then , the probability that fewer than 4 of them will say that football is their favorite sport,

$P(X\leq4)=P(x=0)+P(x=1)+P(x=2)+P(x=3)+P(x=4)\\\\=^{15}C_{0}\ (0.30)^0(0.70)^{15}+^{15}C_{1}\ (0.30)^1(0.70)^{14}+^{15}C_{2}\ (0.30)^2(0.70)^{13}+^{15}C_{3}\ (0.30)^3(0.70)^{12}+^{15}C_{4}\ (0.30)^4(0.70)^{11}\\\\=(0.30)^0(0.70)^{15}+15(0.30)^1(0.70)^{14}+105(0.30)^2(0.70)^{13}+455(0.30)^3(0.70)^{12}+1365(0.30)^4(0.70)^{11}\\\\=0.515491059227\approx0.5$

Hence, the probability rounded to the nearest tenth that fewer than 4 of them will say that football is their favorite sport =0.5

4 0

2 years ago

5 Anita is using 36 cards to set up a card game. She wants to make

serious [3.7K]

Answer:

box is there so I'll put the money in the post

3 0

1 year ago

I’m usually pretty good at these but I cant seem to figure this one out. My answer is 40 every time and I’ve worked it 3 times

slava [35]

Hope this answer helps :)

3 0

1 year ago

15 less than 3 times a number is the same as 5 more than half of the number. what is the number?

djverab [1.8K]

Answer:

Step-by-step explanation:

8x3=24

minus 15 is 9

half of 8 is 4

plus 5 is 9

therefore, the answer is 9.

4 0

2 years ago

A bricklayer is able to set 2.5 bricks in one minute. How many bricks can he set in 8 hours?

pochemuha

Given:

A bricklayer is able to set 2.5 bricks in one minute.

Required:

To find the number of bricks can he set in 8 hours.

Explanation:

8 hours =480 minutes.

2.5 bricks in one minute.

So for 480 minutes,

$\begin{gathered} =2.5\times480 \\ \\ =1200 \end{gathered}$

Final Answer:

1,200 bricks can he set in 8 hours.

5 0

9 months ago