3 years ago

Solve the proportion for the variable given 4/6=9/x a.10 b.6 c.1 d. 27/2

Mathematics

1 answer:

e-lub [12.9K]3 years ago

5 0

Step-by-step explanation:

Option D is the correct answer because we will cross multiply

4/6 = 9/x

4x = 54

X = 27/2

You might be interested in

In the first quarter of a football game, the Tech Tigers gained 7 yards on every play, moving closer to the Knights' goal line.

Mariana [72]

Answer:

they were on the 21-yard line

Step-by-step explanation:

5 0

3 years ago

The teacher realizes that a mistake was made and the student whose score was recorded as 49%

statuscvo [17]

Answer:

? whattt

Step-by-step explanation:

3 0

2 years ago

Create a system of equations

Vika [28.1K]

Answer:

Answer: Janet is 16, and David is 11.

Step-by-step explanation:

Let the ages be j and d.

j = d + 5

j + d = 27

Substitute d + 5 for j in the second equation.

d + 5 + d = 27

2d + 5 = 27

2d = 22

d = 11

Substitute 11 for d in the first equation.

j = d + 5

j = 11 + 5

j = 16

Answer: Janet is 16, and David is 11.

6 0

2 years ago

Please help me @marcthetutor please if you cpuld help me as welll anybody please help wuth thorough explaining will mark as brai

Hunter-Best [27]

Answer:

w=3

Step-by-step explanation:

(w+3)x2=4w

2w+6=4w

2w+6-6=4w-6

2w-4w=4w-6-4w

-2w=-6

-2w/2 = -6/2

w=3

7 0

3 years ago

A dome of a building is in the form of a hemisphere from inside it was whitewashed at the cost of rupees 4989.60 if the cost of

Luda [366]

Answer: $249.48\ m^2; 369.168\ m^3$

Step-by-step explanation:

Given

Cost of white-washing =Rs. 4989.60

Rate =20 per meter square

So, inside area of = $\dfrac{4989.60}{20}=249.48\ m^2$

The surface area of dome= $4\pi\ r^2=249.48$

$4\times 3.142\times r^2=249.48\\r^2=\frac{249.48}{4\times 3.142}=19.85\\r=4.455\ m$

The volume of air in the dome $V=\frac{4}{3}\pi r^3$

$V=\frac{4}{3}\cdot 3.142\cdot (4.45)^3\\V=369.17\ m^3$

6 0

2 years ago