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3 years ago

8

Maria spends $12 on lottery tickets every week and spends $126 per month on food. On an annual basis,the money spent on lottery

tickets is how much of the percentage of the money spent to buy food

1 answer:

julsineya [31]3 years ago

4 0

The solution is in the attachment

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The scale of a map is 1:10000.Work out the distance between two banks on the map if the real distance is 600meters.

sveta [45]

Answer:

6 meters.

Step-by-step explanation:

The scale of a map is 1:10000

The real distance between two banks is 600 meters.

We are to find the distance between the two banks on the map.

This scale means that for every 1 meter on the map there are 10,000 meters on the real world.

So 600 meters on the real world would be represented by;

Cross-multiplying gives:

$\frac{600}{10000} * 100 = 6$ meters.

4 0

3 years ago

Read 2 more answers

Every evening, two weather stations issue weather forecast for the next day. The weather forecasts are independent. On average,

EleoNora [17]

Answer:

The probability is 0.6923

Step-by-step explanation:

Let's call R the event that the next day rains, S the event that the next day has sunny weather, R2 the event that the station 2 predicts rain and S1 the event that station 1 predict sunny weather.

The probability that the next day has sunny weather given that station 1 predicts sunny weather for the next day and station 2 predicts rain is calculated as:

P(S/S1∩R2) = P(S∩S1∩R2)/P(S1∩R2)

Where P(S1∩R2) = P(R∩S1∩R2) + P(S∩S1∩R2)

So, the probability P(R∩S1∩R2) that the next day rains, Station 1 predicts sunny weather and Station 2 predicts Rain is calculate as:

P(R∩S1∩R2) = 0.5 * 0.1 * 0.8 = 0.04

Because 0.5 is the probability that the next day rains, 0.1 is the probability that station 1 predicts sunny weather given that it is going to rain and 0.8 is the probability that station 2 predicts rain given that it is going to rain.

At the same way, the probability P(S∩S1∩R2) that the next day has sunny weather, Station 1 predicts sunny weather and Station 2 predicts Rain is calculate as:

P(S∩S1∩R2) = 0.5 * 0.9 * 0.2 = 0.09

Then, the probability P(S1∩R2) that station 1 predicts sunny weather for the next day, whereas station 2 predicts rain is:

P(S1∩R2) = 0.04 + 0.09 = 0.13

Finally, P(S/S1∩R2) is:

P(S/S1∩R2) = 0.09/0.13 = 0.6923

6 0

3 years ago

If z=sprt5 -sprt2, then Izl=

ASHA 777 [7]

Answer:

3

is the answer

because sprt - sprt = 0

then 5-2=3

3 0

3 years ago

The spinner at the right is divided into eight equal parts. Find the theoretical probability of

finlep [7]

Answer:

$\frac{3}{4}$ probability of landing on a number greater than 2 on the spinner.

Step-by-step explanation:

A theoretical probability is given by the number of desired outcomes divided by the number of total outcomes.

In this question:

8 possible outcomes(all numbers from 1 to 8).

6 desired outcomes(3, 4, 5, 6, 7 and 8, that is, all the numbers greater than 2). So

$p = \frac{6}{8} = \frac{3}{4}$

$\frac{3}{4}$ probability of landing on a number greater than 2 on the spinner.

4 0

3 years ago

Undefined Slope. Through (97 , 73)

Mnenie [13.5K]

Answer:

Equation of line through ( $(x_{1},y_{1})$ ) having undefined slope is given by

$\frac{y-y_{1}}{x-x_{1}}=tan\alpha$ where α =90°

Now ,it is given that line passes through (97, 93)

So , equation of line is

→ $\frac{y-73}{x-97}$ = tan 90°

As, tan 90°=1/0

$\frac{y-73}{x-97}=\frac{1}{0}\\$

→ (x-97)×1= (y-73)×0

→ x-97 =0

→ x=97 , which is the required equation of line.

4 0

3 years ago