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3 years ago

4 01 8

Mathematics

2 answers:

Free_Kalibri [48]3 years ago

4 0

Answer:

Step-by-step explanation:

6×23=138 this will be the total ages for the six people

22+21+23+24+17=107 total ages for the five people

138-107=31

31 is the age of the person who entered the room

Rashid [163]3 years ago

3 0

Answer:

13 years

Step-by-step explanation:

17 + 15 + 23 + 23 + 23 =101 / 5 = 20.2

Mean before was 20.2

In order for the mean to be 19, all those numbers would have to add up 114 to be divided by 6 and have a mean of 19

114 / 6 = 19

114-101 = 13 is that number

17 + 15 + 23 + 23 + 23 + 13 = 114 / 6 = 19

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9 = |2x+3| -5 what is this answer the bars are absolute value

astra-53 [7]

Answer:

9+5=|2x+3|

14=|2x+3|

2 scenarios:

(1) 2x+3 >=0, equation is now 14=2x+3

11=2x

x=5.5

(2) 2x+3<0, equation is now 14=-(2x+3)

2x+3+14=0

2x=-17

x=-8.5

Step-by-step explanation:

7 0

4 years ago

Read 2 more answers

Calculate the velocity of a baseball that travels 100 m in 5 sec.

Maslowich

Divide the distance by the time so 100/5=20 m/s.

8 0

3 years ago

The diagonals of a quadrilaretral intersect at (-1,4). One of the sides of the quadrilateral is bounded by (2,7) and (-3,5)

Maurinko [17]

Solution:

Properties of Square

1. All sides are equal.

2. Opposite sides are parallel.

3. Diagonals are equal and bisect each other at right angles.

As, given point of intersection of diagonals of square is (-1,4).

And, One of the sides of the quadrilateral is bounded by (2,7) and (-3,5).

Drawn the picture of square below,

Let, the third and fourth vertices of square be (x,y) and (p,q).

As, diagonals of square bisect each other. So,

$\frac{x+2}{2}=-1\\\\ x +2=-2\\\\ x=-2-2\\\\ x=-4\\\\ \frac{y+7}{2}=4\\\\ y+7=8\\\\ y=8-7\\\\ y=1\\\\ \frac{p-3}{2}=-1\\\\ p-3=-2\\\\ p=3-2\\\\ p=1 \\\\ \frac{q+5}{2}=4\\\\ q+5=8\\\\ q=8-5\\\\ q=3$

So, third and fourth vertices are (-4,1) and (1,3).

5 0

3 years ago

Pls give answer I need to submit today

BabaBlast [244]

Answer:

$a \: 5 \: 10 \: 15 \: 20 \: three \: of \: these \: numbers \\ b \: 2 < 4 < 6 < 8 < 10 < 12 < 14 < 16 < \\ 18 < 20 \: three \: of \: these \: numbers \\ sum \: of \: numbers < 40 \\ \\ numbers \\ 10 \\ 20 \\ 5 \\ 2$

7 0

3 years ago

THINK ABOUT WHETHER THEY ARE ASKING FOR CURCUMFERENCE OR AREA If you want to Make sure to have the most pizza which would you ra

Firlakuza [10]

Answer:

The maximum pizza quantity would be with the pizza of 18 inch

Step-by-step explanation:

The size of the pizza in inches depicts its diameter.

Thus, 12 inch pizza means diameter of the pizza = 12 inch and 18 inch pizza means diameter = 18 inch

In case of either the CURCUMFERENCE OR AREA, the pizza with larger diameter will have larger CURCUMFERENCE and AREA as compared to the pizza with smaller diameter.

For instance

Area of 18 inch pizza

$\pi * (18/2)^2\\= 254.34$ Square inch