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Ierofanga [76]
3 years ago
7

Use inverse operations and properties of equality to isolate the variable m+31=307

Mathematics
1 answer:
otez555 [7]3 years ago
6 0

ANSWER

m = 276

EXPLANATION

The given equation is

m + 31 = 307

We add the additive inverse of 31 which is -31 to both sides of the equation to get,

m + 31   +  - 31= 307 +  - 31

Simplify;

m +0= 307 - 31

m = 276

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Find the perimeter. Simplify your answer.
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Answer:

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Step-by-step explanation:

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How many variable terms are in the expression 3x3y +5x2-4y+z+9?numeric value only
natta225 [31]

Answer:

im pretty sure its 5

Step-by-step explanation:

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Hope this helps!

4 0
3 years ago
Approximate the value of 44 (Square root) to the nearest hundreth
Svetlanka [38]

I assume that calculators are not allowed, perhaps not even paper and pencil.

With paper and pencil, there is an algorithm to find the square-root of any number accurate to as many digits as we wish.  Please post if that is the case.

Without calculator, pen and pencil, we resort to mental arithmetic.  Someone with a little practice can memorize or calculate the square of all numbers up to 100, or as many as one can.

Here we can take advantage of exactly the property suggested by Xisca... that is, sqrt(44)=2sqrt(11), which reduces the calculation to more accuracy with a lesser knowledge of the squares of numbers.

As a first approximation, we know that 33*33=1089, or 3.3*3.3=10.89, which is already very close to 11.  

Thus a first approximation to sqrt(44)=2sqrt(11)=2*3.3=6.6 (approximately).

To refine the calculation of sqrt(11), we use Newton's approximation, namely

a better approximation is given by 3.3 + (11 - 3.3^2) / (2*3.3) = 3.3+0.11/6.6 = 3.3+1/60

which gives

sqrt(44) = 2(3.3+1/60) = 6.6+1/30 = 6.6333,

actually accurate almost to the nearest 1/10000.

All of the above can be done mentally

For those who need help with rounding to the nearest hundredth (0.01), we drop digits AFTER the 2nd decimal, namely *.**33.  If the first digit dropped is 5 or more, add one to the last digit retained, otherwise, retain only the two digits after the decimal.  In this case, the first digit dropped is 3, so it will simply be dropped.  The final answer is then 6.63, to the nearest hundredth.

5 0
3 years ago
Read 2 more answers
What’s the perimeter
Dafna11 [192]
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3 years ago
At a particular restaurant, each chicken wing has 75 calories and each slider has 250 calories. A combination meal with chicken
VikaD [51]

Know a are:

CW=75. SL= 250. Y= 2x

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8 0
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