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muminat
2 years ago
5

Can some one help me i have no idea what this is

Mathematics
2 answers:
ahrayia [7]2 years ago
5 0

Answer:

b=-25

Step-by-step explanation:

10= -2/5b

10=      -2/5b

------    -------

-2/5       -2/5b

b=-25

Check:

-2/5(-25)=10

10=10

Genrish500 [490]2 years ago
3 0

Answer:

b=-25

Step-by-step explanation:

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find the volume of cubical box . if the cost of painting of outer surface is rs 1440 at the rate rs 15 per mcube
bearhunter [10]
Surface of a cubical box=6(side²)

1)We have to calculate the surface of this cubical box.
Rate=cost of painting / surface  ⇒surface=cost of painting/rate

Data:
Rate=$15/m²
cost of painting=$1440

Surface=$1440/($15/m²)=96 m²

2)We find out the length of the side:

Surface of a cubical box=6(side²)

Data:
Surface of a cubical box=96 m2

Therefore:
96m²=6 (side²)
side²=96 m²/6
side²=16 m²
side=√(16 m²)=4 m

3) We find the volume of a cubical box.
volume=(side³)
volume=(4 m)³
volume=64 m³

Answer: the volume of this cubical box would be 64 m³.

3 0
3 years ago
When 18 gallons of water are pumped into an empty tank, the tank is filled to three fourths of its capacity. How many gallons of
andriy [413]
3/4 Of X(Capacity) = 18 Gallons
X = 18*4/3
= 6*4
= 24 Gallons

Capacity of Tank = 24Gallons
4 0
2 years ago
Read 2 more answers
A company logo is shaped like an equilateral triangle with 6-inch long sides. What is the height of the logo? Round to the neare
blondinia [14]

Answer:

5.2 in

Step-by-step explanation:

An equilateral triangle is a triangle with 3 equal sides

Divide the equilateral triangle into two congruent triangles and use Pythagoras theorem to find the height

The Pythagoras theorem : a² + b² = c²

where a =  height

b = base = 6 in / 2 = 3 in  

c =  hypotenuse = 6 in

6² = 3² + h²

h = 36 - 9 = 27

√27 = 5.196 inch

to the nearest tenth = 5.2 in

the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero

6 0
2 years ago
Evaluate sin(<br> 5π<br> 3<br> ).
azamat

Answer:

=−0.888168

Step-by-step explanation:

sin(5(3.1415933))

=sin((5)(31.006277))

=sin(155.031383)

=−0.888168

:)

8 0
3 years ago
I have a math test coming up can people help me?!?!?!
kogti [31]

i can help if you want

5 0
3 years ago
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