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mojhsa [17]
3 years ago
13

Please help ill mark brainiest and please do NOT send a link

Mathematics
1 answer:
saul85 [17]3 years ago
6 0

Answer:

What we have to find ...

Tell FIRST THEN I WILL ANSWER...

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Suppose Gabe, an elementary school student, has just finished dinner with his mother, Judy. Eyeing the nearby cookie jar, Gabe a
Paladinen [302]

Answer:

0.56

Step-by-step explanation:

What is the probability that his mother returns just in time to catch Gabe stealing a cookie?

The probability of this is the same as 1 minus the probability that Gabe is NOT caught.

- Judy could return at anytime in the next 90 seconds

- Gabe spends the first 40 seconds pondering... time wasted=40secs

- It takes 30 seconds (out of the remaining 50secs) to finish eating a cookie without a trace

- The question says that Gabe was going to do it, so he probably did

Now we're looking for the probability that he gets caught. That is, probability that he does not "successfully" complete the 30secs task within the remaining 50secs.

Remember that each second has an equal probability of being the second that Judy comes back in. The latter of the 90 seconds does not carry a higher probability!

So the probability of catching Gabe (despite the 30secs it takes to complete his task) is 50/90 which is equal to 0.56

6 0
3 years ago
Please Help me ASAP read the problem below
SashulF [63]

PART 1: Find the surface area of each section.

The formula for finding the area of a triangle is A = 1/2(b)(h); where b = base length and h = height. And the formula for finding the area of a rectangle is A = (l)(w); where l = length and w = width.

I'll start with the gold triangles, which are both the same size so I only need to calculate once.

A = 1/2(b)(h)

A = 1/2(7)(8.6)

A = 1/2(60.2)

A = 30.1 cm²

Now, I'll find the area of the blue triangles.

A = 1/2(b)(h)

A = 1/2(12)(7)

A = 1/2(84)

A = 42 cm²

Now, I'll find the area of the rectangular base.

A = (l)(w)

A = (12)(7)

A = 84 cm²

PART 2: Find the amount of foil in each color needed to cover 1 ornament.

There are two gold triangles, so all we have to do is multiply the area of the gold triangle by 2.

(30.1)(2) = 60.2 cm²

There are two blue triangles, so all we have to do it multiply the area of the blue triangle by 2.

(42)(2) = 84 cm²

And Olga will need 84 cm² of black foil to cover the rectangular base.

PART 3: Find the total amount of foil needed to cover 1 ornament and then 100 ornaments.

To find the total amount of foil needed, just add the amounts found in the previous step.

60.2 + 84 + 84 = 228.2 cm²

Olga will need 228.2 cm² of foil to cover 1 ornament.

(228.2)(100) = 22820 cm²

Olga will need 22, 820 cm² of foil to cover 100 ornaments.

PART 4: Fill in the blanks to give your answer.

Surface area of black face(s) = 84 cm²

Surface area of blue face(s) = 84 cm²

Surface area of gold face(s) = 60.2 cm²

Total surface area of 1 ornament = 228.2 cm²

Total surface area of 100 ornaments = 22, 820 cm²

Hope this helps!

3 0
3 years ago
A car that travels 20 miles in 1/2 hour at constant speed is traveling at the same speed as a car that travels 30 miles in 3/4 h
Vsevolod [243]
It’s because 2/3 of 30 miles in 3/4 hours is the same as 20 miles in 1/2 hour.

Proof:

30/1x2/3
60/3 = 20

3/4x2/3
6/12 = 1/2

Brainliest my answer if this helped you out?


5 0
3 years ago
In the drawing below, a boy with his shadow is standing beside a monument with its shadow. the drawing is not drawn to scale.
CaHeK987 [17]
There exists the same question from other source that has the image of the drawing. Attached to this answer is the image.

To solve this, first we have to assume ratios.

Real Height / Shadow = 56 / 49
Real Height / 28 = 56 / 49
49 * h = 56 * 28
49h = 1568

Then, we have to divide both sides by 9
h = 32

Therefore, the obelisk is 32 ft

C is correct answer to this question.

4 0
3 years ago
Pls help ill mark brainliest
Andrei [34K]

Answer: 1 and 2/3

Step-by-step explanation:

since 1/5 goes to 1 it is multiplied by 5

so 1/3 times 5 is 1 and 2/3

8 0
2 years ago
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