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Oliga [24]
3 years ago
11

Tyler has 30 marbles 40% of his marbles are blue how many of his marbles are blue

Mathematics
1 answer:
rewona [7]3 years ago
6 0

Answer:

12 marbles are blue.

Step-by-step explanation:

3 x 4 = 12, so 40 % of 30 is 12.

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How many feet long is the fence ?
grandymaker [24]

Answer:

50 feet long

Step-by-step explanation:

Use the Pythagorean theorem to find the value of the missing side. The pythagoreon theorem only works with right triangles such as this one.

a²+b²=c²

Where a and b are length of legs (sides) of a triangle. And c is the length of the hypotenuse. The hypotenuse is the side across from the right angle.

We know by looking at the image posted in the question, that one leg of the triangle is 14 feet. And another leg is 48 feet. (Length of picnic area) (length of campground)

14²+48²=c²

Simplify

196+2304=2500

Find square root of 2500

√(2500)=50

So 14²+48²=50²

The missing side is 50 feet long. The fence is 50 feet long.

Attached is another example.

7 0
3 years ago
What is -a^-2 if a = -5? (PLEASE HELP WILL MARK BRAINLIEST!!!)
4vir4ik [10]

Answer:

-1/25

Step-by-step explanation:

-a^-2

-(-5)^-2

=-1/25

6 0
4 years ago
Esther wants to know if the number of words on a page in her language arts book is generally more than the number of words on a
kykrilka [37]
Answer: The correct answer is "No, because there is a lot of variability in the language arts book data."

The mean of the language arts book is higher than the mean of the social studies book, however, there is a lot of variability in the language arts book. This means that the language arts book could actually be lower than the social studies book. It is not likely but it could happen.
7 0
4 years ago
Read 2 more answers
*not drown to scale
bulgar [2K]

Answer:

26.9 inches

Step-by-step explanation:

2x Pythagorean theorem

First we find the length of AC with ABC. AC is the hypotenuse of triangle ABC.

AC = sqrt(7^2+24^2) = sqrt625 = 25.

Now, AD is the hypotenuse of ACD. So AD = sqrt(25^2+10^2) = sqrt(725) = 26.925824 which is about 26.9 inches.

8 0
3 years ago
Read 2 more answers
Ted, the postman, has 110 letters to deliver. If Ted can deliver 10 letters in 5 minutes,
valina [46]

Answer:

55

Step-by-step explanation:

There are 11 tens in 110, so 11 times 5 is 55.

8 0
3 years ago
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