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2 years ago

I will give you 100 points and brainliest if you answer

Mathematics

2 answers:

julsineya [31]2 years ago

4 0

Answer: Number 4 Hankins car travels faster

Step-by-step explanation:

Because 600+20=620 and Andres bike travels slower because 300+12=312

kherson [118]2 years ago

4 0

Answer:

hanks car travels faster

Step-by-step explanation:

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Sue and cows have $20 left for cab fare home because there is three dollars per mile plus $2 fix charge what is the maximum numb

-Dominant- [34]

Answer:

The maximum number of miles they can travel is 6 miles.

Step-by-step explanation:

Because of the fix charge of $2, the amount of money left for the rest of the trip is $18. In order to find how many miles $18 cover when the cab charges $3 per hour, 18 is divided by 3. 18/3=6.

4 0

2 years ago

Write a division problem that has a quotient of 1/20. At least one of the numbers you give must be a proper fraction. The other

Orlov [11]

Answer:

5 divided by 10

Step-by-step explanation:

5 divided by 100 is 0.05 but as a fraction, it's 1/20

3 0

2 years ago

One satellite is scheduled to be launched from Cape Canaveral in Florida, and another launching is scheduled for Vandenberg Air

Lisa [10]

Answer:

$P(A) = 0.45$

$P(B) = 0.32$

Step-by-step explanation:

Given

$P(A) > P(B)$

$P(A\ u\ B) = 0.626$

$P(A\ n\ B) = 0.144$

Required

Find P(A) and P(B)

We have that:

$P(A\ u\ B) = P(A) + P(B) - P(A\ n\ B)$ --- (1)

and

$P(A\ n\ B) = P(A) * P(B)$ --- (2)

The equations become:

$P(A\ u\ B) = P(A) + P(B) - P(A\ n\ B)$ --- (1)

$0.626 = P(A) + P(B) - 0.144$

Collect like terms

$P(A) + P(B) = 0.626 + 0.144$

$P(A) + P(B) = 0.770$

Make P(A) the subject

$P(A) = 0.770 - P(B)$

$P(A\ n\ B) = P(A) * P(B)$ --- (2)

$0.144 = P(A) * P(B)$

$P(A) * P(B) = 0.144$

Substitute: $P(A) = 0.770 - P(B)$

$[0.770 - P(B)] * P(B) = 0.144$

Open bracket

$0.770P(B) - P(B)^2 = 0.144$

Represent P(B) with x

$0.770x - x^2 = 0.144$

Rewrite as:

$x^2 - 0.770x + 0.144 = 0$

Expand

$x^2 - 0.45x - 0.32x + 0.144 = 0$

Factorize:

$x[x - 0.45] - 0.32[x - 0.45]= 0$

Factor out x - 0.45

$[x - 0.32][x - 0.45]= 0$

Split

$x - 0.32= 0 \ or\ x - 0.45= 0$

Solve for x

$x = 0.32\ or\ x = 0.45$

Recall that:

$P(B) = x$

So, we have:

$P(B) = 0.32 \ or \ P(B) = 0.45$

Recall that:

$P(A) = 0.770 - P(B)$

So, we have:

$P(A) = 0.770 - 0.32 \ or\ P(A) =0.770 - 0.45$

$P(A) = 0.45 \ or\ P(A) =0.32$

Since:

$P(A) > P(B)$

Then:

$P(A) = 0.45$

$P(B) = 0.32$

6 0

2 years ago

If in fact 15% of the items in shipment are defective, what is the probability of at least 2 defectives in the sample

Mashcka [7]

Posibility it is 20%

3 0

3 years ago

Josie is for a race.The ratio of the number of minutes she runs to the number of miles she runs is 24 to 3.She plans to run 10 m

saul85 [17]

Answer:

80 minutes

Step-by-step explanation:

We can solve this problem using rule of three:

The ratio of number of minutes and number of miles is 24 to 3, that is, for each 24 minutes running, she runs 3 miles.

So, if to run 3 miles she needs 24 minutes, to run 10 miles, how much time she will need:

3 miles -> 24 minutes

10 miles -> X minutes

3/10 = 24/X

X = 10 * 24 / 3 = 80 minutes.

She will take 80 minutes to run 10 miles.

3 0

2 years ago