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4 years ago

Solve for x. X-6 ___ =5 3

Mathematics

1 answer:

vaieri [72.5K]4 years ago

8 0

Answer:

x = 21

Step-by-step explanation:

(x-6) /3 = 5

Multiply each side by 3

(x-6) /3 * 3 = 5*3

x-6 = 15

Add 6 to each side

x-6+6 = 15+6

x = 21

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Find the surface area of this cylinder.

borishaifa [10]

Formula for the surface area of a cylinder: 2 x pi x r^2 + 2 x pi x r x h

Radius (r) = 3

Height (h) = 3

2 x pi x 3^2 + 2 x pi x 3 x 3

2 x pi x 9 + 2 x pi x 9

18pi + 18pi

36pi = 113.1 cm^2

Hope this helps!

4 0

3 years ago

Read 2 more answers

KL has endpoints at K(9, 19) and L(2, 16). Find the midpoint M of KL.

Rom4ik [11]

Answer: (5.5,17.5)

Step-by-step explanation: using the midpoint formula

6 0

3 years ago

Each pitcher of podwer smoothie that Ginger makes has 2 scoops of pineapple,3 scoops of strawberries,1 scoop of spinach and 1 sc

WITCHER [35]

Answer:

She will use 49 scoops

Step-by-step explanation:

* Lets explain how to solve the problem

- Each pitcher of powder smoothie that Ginger makes has:

# 2 scoops of pineapple ⇒ 2 p

# 3 scoops of strawberries ⇒ 3 s

# 1 scoop of spinach ⇒ 1 sp

# 1 scoop of kale ⇒ 1 k

- She makes 7 pitchers of powder smoothies

* Lets write an expression for the number of scoops of one pitchers

powder smoothie

∵ 1 pitcher of powder smoothie contains 2 p scoops, 3 s scoops,

1 sp scoop and 1 k scoop

∴ The number of the scoops = 2 + 3 + 1 + 1 for one pitcher

∵ She makes 7 pitchers of powder smoothie

- Multiply the scoops of each type by 7

∴ The total number of scoops = (7 × 2) + (7 × 3) + (7 × 1) + (7 × 1)

- By multiply the numbers in the parentheses

∴ The number of total scoops = 14 + 21 + 7 + 7

∴ The number of total scoops = 49

* She will use 49 scoops

6 0

4 years ago

Item 19 A surveyor holds a laser range finder 3 feet above the ground and determines that the range finder is 112 feet from a bu

liberstina [14]

The building is about 70.95 feet tall.

The building and the laser range will form a right triangle. You can use the Pythagorean Theorem to find the height of the building.

112^2 + b^2 = 131^2
b = 67.95

However, don't forget to add on 3 because that is the height of the laser range.

8 0

3 years ago

Based on census data, the population of Freedonia is modeled by the function P ( t ) = 325 t^2 + 28547 people, where t represent

navik [9.2K]

Answer:

dP/dt = 650t = 650(2 ) = 1,300 people/year

The rate of increasing of population at the end of the year 1992 is 1,300 people/year

Step-by-step explanation:

Given;

Population function as;

P(t) =325 t^2 + 28547

The rate of change of the population dP/dt at any given time can be given as;

Rate = change in population/change in time = dP/dt

dP/dt = 2×325t = 650t

Therefore, after 1992;

t = 1992-1990 = 2years

dP/dt = 650t = 650(2 ) = 1,300 people/year

The rate of increasing of population at the end of the year 1992 is 1,300 people/year

5 0

4 years ago