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Ksju [112]
2 years ago
15

Solve this system to determine how many minutes you have been walking and how many minutes your friend has been walking: x+y=72

and 4x+6y=15
Mathematics
1 answer:
guajiro [1.7K]2 years ago
4 0
I believe the answer is 99.5
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According to a​ report, 67.5​% of murders are committed with a firearm. ​(a) If 200 murders are randomly​ selected, how many wou
kolezko [41]

Answer: The answer is 135 murders.

Step-by-step explanation: The report tells us that statistically 67.5% of murders are committed using a firearm. It follows therefore that in a sample of 200 randomly selected murders, one would expect that 67.5% of those would be by a firearm. \frac{67.5}{100} * 200 = 135.

It would certainly be higher that the expected value based on previous data collected but it would not be unusual because one sample may have a higher than "normal" amount of murders by firearm. Statistics aren't going to be exact for every sample.

8 0
2 years ago
Need help with questions <br> 2. and 3.
emmainna [20.7K]

9514 1404 393

Answer:

  2)  x = 7

  3)  x = 5

Step-by-step explanation:

When a transversal crosses parallel lines, all of the acute angles are congruent, and all of the obtuse angles are congruent. When it crosses at right angle, all of the angles are right angles.

2) All of the angles are right angles.

  11x +13 = 90

  11x = 77 . . . . . . subtract 13

  x = 7 . . . . . . . divide by 11

__

3) The two marked angles are acute.

  16x = 80 . . . . the acute angles are congruent

  x = 5 . . . . . . divide by 16

5 0
2 years ago
A refrigerator contains 6 apples, 5 oranges, 10 bananas, 3 pears, 7 peaches, 11 plums, and 2 mangos.
salantis [7]
Imagine now that you put your hand in the refrigerator and pull out a piece of fruit.
4 0
3 years ago
A manufacturer wants to produce a 4"× 2"× 5" rectangular box to hold teabags using the net shown.
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Answer:

40

mark me brainlist ok ôókk

6 0
2 years ago
For the function f(x)=x2−24÷3+12<br><br> f(1) <br><br><br> ​f(0)​ <br><br><br> ​f(−1)​
LuckyWell [14K]

Put the values of x to the equation of the function.

f(x)=\dfrac{x^2-24}{3}+12

f(1)=\dfrac{1^2-24}{3}+12=\dfrac{1-24}{3}+12=\dfrac{-23}{3}+12=-7\dfrac{2}{3}+12=4\dfrac{1}{3}\\\\f(0)=\dfrac{0^2-24}{3}+12=\dfrac{-24}{3}+12=-8+12=4\\\\f(-1)=\dfrac{(-1)^2-24}{3}+12=\dfrac{1-24}{3}+12=\dfrac{-23}{3}+12=-7\dfrac{2}{3}+12=4\dfrac{1}{3}

3 0
3 years ago
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