3 years ago

How many tennis balls do you need to balance to scale

Mathematics

2 answers:

Nadusha1986 [10]3 years ago

7 0

You need about an answer

liberstina [14]3 years ago

5 0

Answer:

7 but they all have to weight the same

Step-by-step explanation:

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Ann [662]

The answer really depends on what b is. Unless you give me a number for what b equals I can’t solve it.

5 0

3 years ago

on an airplane,there are two seats on the left side in each row and three seats on the right side.There are 90 seats on the righ

pantera1 [17]

Left side: (equation) 2/x=3/90 (multiply them together by cross multiplying. 90x2 divided by 3)
=60

Altogether: 90 (right) + 60 (left) =150 seats in total

4 0

3 years ago

Read 2 more answers

PLZZZZ HELPPPPPPPPP!!!! a survey asks teachers and students whether they would like the new school mascot to be a Viking or a Pa

VARVARA [1.3K]

Answer:

Step-by-step explanation:

Two events A and B are called independent, when

$P(B|A)=P(B),$

where $P(B|A)$ is the probability that B occurs given that A has already occurred.

A = randomly selected person is a student

B = randomly selected person prefer "Vikings"

B|A = randomly selected student prefer "Vikings"

Probabilities:

$P(A)=\dfrac{100}{125}=\dfrac{4}{5}=0.8\\ \\P(B|A)=\dfrac{80}{85}=\dfrac{16}{17}\approx 0.94$

Since

$0.80\neq 0.94$

we can state that events are not independent.

8 0

2 years ago

Read 2 more answers

Will mark brainly :)

WARRIOR [948]

Answer:

If is positive, then the parabola opens upward, so the function decreases on and increases on . But if is negative, then just the reverse

7 0

2 years ago

Helppp me Please!!!!! :)

irina [24]

Answer:

$x = 30 \\ y = 10$

Step-by-step explanation:

$8x + 6y = 300 \\ x + y = 40 \\ 6x + 6y = 240 \\ 2x = 60 \\ = > x = 30 \\ y = 10$

7 0

2 years ago