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Leno4ka [110]
3 years ago
15

Solve the proportion 5/6 = c/9

Mathematics
2 answers:
Semmy [17]3 years ago
8 0

Answer: 7.5

Step-by-step explanation:

AnnZ [28]3 years ago
3 0

5/6= c/9

Cross mutiple. 5* 9= 45 . c*6

45= 6c

divide by 6 for 45 and 6c

45/6= 6c/6

45/6= c

Reduce 45/6. Divide by 3

45/3, 6/3

15/2= c

Answer: c= 15/2 or in decimal form , c= 7.5

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8.3 as a mixed number
Alik [6]

Step-by-step explanation:

8.3 = 8+ 0.3

= 8 + 3/10

= 8 3/10

6 0
2 years ago
Read 2 more answers
Area of a triangle is given by the formula A=1/2 bh. The area of the triangle shown to the right is 56 sq. units. Find its base
Westkost [7]
Given

base=2x+6
height=x+4

and
area=56 square units

56=1/2 times (2x+6) times (x+4)
times bot sides by 2
112=(2x+6)(x+4)
expand
112=2x²+14x+24
divide both sides by 2
56=x²+7x+12
minus 56 both sides
0=x²+7x-44
factor
waht 2 numbers mulitply to get -44 and add to get 7
11 and -4
0=(x-4)(x+11)
set to 0

x-4=0
x=4

x+11=0
x=-11
false, measures can't be negative

x=4


height=x+4
height=4+4=8


base=2x+6
base=2(4)+6=8+6=14



x=4 and base=14 and height=8

8 0
3 years ago
The height of a cone is twice the radius of its base.
fredd [130]

Answer: 2/3πx³

Step-by-step explanation:

Let the radius of the cone be represented by x.

Since the height of the cone is twice the radius of its base, the height will be: = 2x

Volume of a cone = 1/3πr²h

where,

r = x

h = 2x

Volume of a cone = 1/3πr²h

= 1/3 × π × x² × 2x

= 1/3 × π × x² × 2x

= 1/3 × π × 2x³

= 2/3πx³

Therefore, the correct answer is 2/3πx³.

3 0
3 years ago
Solve for x. <br> 2/3(x-7) = -2
kari74 [83]

Answer:

x = 4

Step-by-step explanation:

5 0
3 years ago
Please help me, i have been on this problem for 45 minutes.
docker41 [41]

Answer:

Step-by-step explanation:

The absolute difference is 77-(-8)=85. The only option that is equivalent is

|-8|+77

8 0
3 years ago
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