All categories

2 years ago

)) A group of cyclists went bike riding during a 7-day vacation. They biked 129 miles in the

Mathematics

2 answers:

shtirl [24]2 years ago

5 0

Answer:

41 miles a day

Step-by-step explanation:

293 - 129 = 164

164 / 4 = 41

barxatty [35]2 years ago

5 0

Answer:41 miles per day... I think

Step-by-step explanation:

129/3=43 meaning in the first 3 days they biked 43 miles per day (This part isn't/wasn't necessary but it gives us an idea/range of what we are looking for lol).

293-129=164...so in the last 4 days, they biked 164 miles.

Doing the equation of 164/4 gives us the answer.

164/4=41

Therefore, they biked 41 miles a day every day for the last 4 days of vacation.

Hope this helped lol

You might be interested in

Repartir 310 nueces entre tres personas de modo que la segunda reciba 20 menos que la primera y 40 mas que la tercera

almond37 [142]

Answer:

Step-by-step explanation:

625282629283637hshshs

3 0

3 years ago

Scientists found that a certain particle of dust doubles every 30 minutes. If the scientists tests this out with 21 grams of the

monitta

Answer: $1.663\times 10^{30}\ gm$

Step-by-step explanation:

Given

Population of dust particle doubles every 30 minutes

If the initial sample is 21 grams

The model to predict the population will be

$\Rightarrow P=21\cdot 2^{2t}$

Where t=time in hours

A day has 24 hours . So, for 2 days time is 48 hours

Population is given by

$\Rightarrow P=21\cdot 2^{2\times 48}\\\\\Rightarrow P=21\times 2^{96}\\\\\Rightarrow P=1.663\times 10^{30}\ gm$

7 0

3 years ago

2/10 + 7 = 10 two over 10 plus 7 equals 10 pls help me solve the enquality

koban [17]

If this is a true or false question, it’s false because 2/10 + 7 ≠ 10. the correct inequality would be 2/10 + 7 = 12.

4 0

4 years ago

Read 2 more answers

Today, Mariam wants to do no more than 120 jumping jacks for her workout in 6 minutes. She already did 30 jumping jacks. Which i

Elena-2011 [213]

Answer:

The answer is 132.

6 0

3 years ago

Math scores on the SAT exam are normally distributed with a mean of 514 and a standard deviation of 118. If a recent test-taker

LuckyWell [14K]

Answer:

Probability that the student scored between 455 and 573 on the exam is 0.38292.

Step-by-step explanation:

We are given that Math scores on the SAT exam are normally distributed with a mean of 514 and a standard deviation of 118.

Let X = Math scores on the SAT exam

So, X ~ Normal( $\mu=514,\sigma^{2} =118^{2}$ )

The z score probability distribution for normal distribution is given by;

Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)

where, $\mu$ = population mean score = 514

$\sigma$ = standard deviation = 118

Now, the probability that the student scored between 455 and 573 on the exam is given by = P(455 < X < 573)

P(455 < X < 573) = P(X < 573) - P(X $\leq$ 455)

P(X < 573) = P( $\frac{X-\mu}{\sigma}$ < $\frac{573-514}{118}$ ) = P(Z < 0.50) = 0.69146

P(X $\leq$ 2.9) = P( $\frac{X-\mu}{\sigma}$ $\leq$ $\frac{455-514}{118}$ ) = P(Z $\leq$ -0.50) = 1 - P(Z < 0.50)

= 1 - 0.69146 = 0.30854

The above probability is calculated by looking at the value of x = 0.50 in the z table which has an area of 0.69146.

Therefore, P(455 < X < 573) = 0.69146 - 0.30854 = 0.38292

Hence, probability that the student scored between 455 and 573 on the exam is 0.38292.

7 0

3 years ago