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AysviL [449]
3 years ago
8

7+3/5b=7/10b what is b

Mathematics
1 answer:
Olegator [25]3 years ago
6 0

Answer:

b = 70

Step-by-step explanation:

7+3/5b=7/10b

Subtract 3/5 b from each side

7+3/5b - 3/5 b=7/10b - 3/5 b

7 = 7/10 b - 3/5 b

We need to get a common denominator or 10 on the right hand side

7 = 7/10 b -3/5 *2/2 b

7 = 7/10b - 6/10 b

7 = 1/10 b

Multiply each side by 10

7*10 = 1/10 * 10 b

70 = b

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Elza [17]

Answer:

mmm

Step-by-step explanation:

4 0
3 years ago
If a and b represent positive real numbers, what is the inequality when solved for V?
Nutka1998 [239]

Answer:

C. v < (3au - 60)/2b

Step-by-step explanation:

Given

au/2 - bv/3 > 10

Required

Solve for v

We start by rewriting the inequality

au/2 - bv/3 > 10 becomes

½(au) - ⅓(bv) > 10

Multiply both sides by 6

6 * ½(au) - 6 * ⅓(bv) > 6 * 10

3au - 2bv > 60

Make -2bv the subject of formula

-2bv > 60 - 3au

Multiply both sides by -½

[When multiplying or dividing an inequality by a negative number, the sign of the inequality will change]

-½ * -2bv < -½(60 - 3au)

bv < -½(60 - 3au)

bv < ½(3au - 60)

bv < (3au - 60)/2

Divide both sides by b

v < (3au - 60)/2b

Option C is correct

8 0
4 years ago
The area of a circle is found with the formula A = The expression is pi*r^2, where pi represents 3.14. If a tile artist is placi
alekssr [168]

Answer:

the radius is about 14.47 ft

Step-by-step explanation:

658=pi*r^2 Given

658=3.14*r^2 Substitution

209.55=r^2 Division property of equality

√209.55=√r^2 square root property of equality

the radius is about 14.47 ft

6 0
3 years ago
Which lengths can be used, directly or indirectly, to calculate the volume of the hexagonal right pyramid? check all that apply.
diamong [38]

Answer

A. XY and ST

B. VU and TW

D.TX and WX

Step-by-step explanation:

The question is on volume of a hexagonal right pyramid

The formula for volume of hexagonal right pyramid is

V=\frac{\sqrt{3} }{2}a^2h

where a is the base length and h is the height of the pyramid.

So to get the volume, you need to find the base area then multiply it by the height.

Let observe the lengths that can help you in calculating the volume.

Length XY is important because it is a base length

Length st is important because it is the height of the pyramid

Length VU/YZ is important because it is a base length

Length TW/TX is important because it could help you determine the slant height and if the apothem length is given, you can determine the height TS

Length XW is important because it is a base length

Length XS is not important because it is not the apothem length.Apothem length is a perpendicular bisector of the base length originating from the center of the pyramid

Therefore the correct pairs of lengths are ;

A. XY and ST

B. VU and TW

D.TX and WX

3 0
3 years ago
A) 22<br> B) 5<br> C) 12<br> D) 11
kkurt [141]

Answer:

C 12

Step-by-step explanation:

they are proportionate, so right side = 11 and bottom = 22

11-5 = 6 = other length on right

6 x 2 = length ?

lenth ? = 12

6 0
3 years ago
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