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3 years ago

Which best describes how to subtract 6.45 from 81.3?

Mathematics

2 answers:

damaskus [11]3 years ago

7 0

Answer:

just subtract

Step-by-step explanation: u get -74.

tensa zangetsu [6.8K]3 years ago

5 0

Answer:

simple just subtract and you get-74.85

Step-by-step explanation:

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3 years ago

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A coin collection is made up of 34 coins comprised of nickels and dimes. The total value of the collection is $1.90. How many di

riadik2000 [5.3K]

Answer:

x = nickels

y= dimes

x + y = 34

.05x + .10y= $1.90

-.10x - .10y = -3.40

-.05x + .10y = 1.90

-.05x = -1.50

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3 years ago

Answer pls for 30 points and brainliest

stepladder [879]

Answer:

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Step-by-step explanation:

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3 years ago

Lim ln(tan x) as tends to pi/2 from the left

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3 0

3 years ago

6 16x + 5y = -2<br> 4x - y=-2

Grace [21]

Answer:

x=2/9,y=26/9

Step-by-step explanation:

This is a simultaneous equation

16x+5y=-2..(1)

4x-y=-2...(2)

From (2) make y the subject of formula

y=4x+2..(3)

Substitute (3) into (1)

16x+5(4x+2)=-2

16x+20x+10=-2

36x-10=-2

Add 10 to both sides

36x=8

Divide both sides by 36

x=8/36

Divide both denominator and numerator by 4

x=2/9

Substitute the value x into (3)

y=4(2/9)+2

y=8/9+2

Let the LCM be 9

y=8+18/9

y=26/9

Therefore x=2/9,y=26/9

5 0

3 years ago