4 years ago

Compatible numbers are the numbers in a problem that are easy to compute BLANK . PLZ TELL ANSWER

Mathematics

1 answer:

sweet [91]4 years ago

8 0

Compatible numbers are close in value to actual number and make it easy to do mental math.

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Pamela's age is two times Jiri's age. The sum of their ages is 84. What is Jiri's age?

Grace [21]

Answer:

Step-by-step explanation:

28 times 2 = 56

28 times 1 = 28

56 + 28 = 84

4 0

3 years ago

Two vertical posts stand side by side. One post is 8 feet tall and the other is 17 feet tall. If a 24 foot wire is stretched bet

lianna [129]

Answer:

The distance between the posts is $3\sqrt{55}$ feet.

Step-by-step explanation:

In the attached figure, let DB and AC be the posts and let AD be the wire attached to the top of the posts.

BC is the distance between the posts and we need to find BC.

Note that BC = DE

Also, EC = DB = 8m and AE = AC - EC = 17 - 8 = 9 m.

Now, in the right triangle ADE,

$AD^{2} =AE^{2} +DE^{2}$

$24^{2} =9^{2} +DE^{2}$

$DE^{2} =24^{2} -9^{2}$

= (24+9) (24-9)

= 33(15)

= (3 × 11) × (3 × 5)

$DE=3\sqrt{55}$

Since DE = BC,

$BC=3\sqrt{55}$

Hence, the distance between the posts is $3\sqrt{55}$ feet.

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3 years ago

An aquarium tank in the shape of a rectangular prism is 56 cm long, 29 cm wide, and 24 cm high. The top of the tank is open, and

kobusy [5.1K]

0 if you add the thickness to the underside of the tank

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3 years ago

A cone has a slant height that measures 24 feet and a radius that measures 13.5 feet. What is the surface area of the cone?

SpyIntel [72]

Answer:

1,017.36 ft²

Step-by-step explanation:

surface area of the cone = π×r×s

= 3.14 × 13.5 × 24

= 3.14 × 324

= 1,017.36 ft²

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3 years ago

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Customer bill is $333.00 20% from bill is?

deff fn [24]

Answer:

$16.65

Step-by-step explanation:

333.00 divided by 0.20

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3 years ago