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Citrus2011 [14]
3 years ago
7

How many 3/4's are in the whole number 21?

Mathematics
2 answers:
Nonamiya [84]3 years ago
7 0

Answer:

21 ÷ 3/4

= 21 × 4/3

= 7×4

= 28

Step-by-step explanation:

lora16 [44]3 years ago
3 0

Answer: 15.75

Step-by-step explanation:

3/4*21=15.75

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aleksklad [387]

Answer:

i. 5 + 4 = 9

ii. 2 x 3 = 6

iii. 8 - 7 = 1

Step-by-step explanation:

Given: The basic arithmetic operations: addition, subtraction, multiplication or division.

           Digits from 1 - 9

Using three arithmetic operations - addition, subtraction, multiplication, and the given digits, the following three expressions can be formed:

i. 5 + 4 = 9

ii. 2 x 3 = 6

iii. 8 - 7 = 1

It can be observed that there is no repetition of digits in the above expressions as required.

7 0
2 years ago
Please answer correctly !!!! Will mark brainliest !!
jek_recluse [69]

Answer:

h(u)=-7/6u

Step-by-step explanation:

To write a formula for v in terms of u, you need to first isolate v.

4u+8v=-3u+2v

Add 3u to both sides:

7u+8v=2v

Subtract 8v from both sides:

7u=-6v

Divide both sides by -6:

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Hope this helps!

5 0
3 years ago
Read 2 more answers
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3 years ago
Find the volume of the largest rectangular box in the first octant with three faces in the coordinate planes and one vertex in t
makkiz [27]

Answer:

Step-by-step explanation:

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z=\frac{12-x-2y}{3}

Volume = V=f(x,y) = xy(\frac{12-x-2y}{3} )

find partial derivatives using product rule

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i.e.

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x=0 or x+4y =12

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Of these D the II derivative test gives

D<0 only for (4,2)

Hence maximum volume is when x=4, y=2, z= 4/3

Max volume is = 4(2)(4/3) = 32/3

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3 years ago
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