4 years ago

16 6/9 inches 16 16/18 write an inequality comparing the two perimeters

1 answer:

8 0

We need to find a common denominator and it'll be pretty clear.

16 6/9 ?= 16 16/18

The common denominator is 18 (18 = 9 * 2), so we multiply both 6 and 9 by 2.

16 12/18 < 16 16/18

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A grocer wants to make a 10-pound mixture of peanuts and cashews that he can sell for $4.75 per pound. If peanuts cost $4.00 per

laiz [17]

Answer:

3lbs of Cashews

Step-by-step explanation:

lbs of Cashews, and 7 lbs of Peanuts

$4.00P + 6.50C = ($4.75/lbs)(10lbs)

$4.00(7) + $6.50(3) = $47.50

$28.00 + $19.50 = $47.50

$47.50 = $47.50

Therefore it's 3lbs of Cashews

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3 years ago

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What is the expanded notation fraction of 810.435

ipn [44]

Answer:

810.435 =

800

+ 10

+ 0

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+ 0.005

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3 years ago

4. A marching band has 64 members. The

Nikolay [14]

Pretty sure the answer would be C

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3 years ago

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If A, B, and C are n times nn×n invertible matrices, does the equation Upper C Superscript negative 1 Baseline (Upper A plus U

jeyben [28]

Looks like the matrix equation is supposed to be

$C^{-1}(A+X)B^{-1}=I_n$

where $I_n$ presumably denotes the $n\times n$ identity matrix.

Since $A,B,C$ are all invertible, we have by multiplying on the left by $C$ ,

$C(C^{-1}(A+X)B^{-1})=CI_n$

$(CC^{-1})((A+X)B^{-1})=C$

$(A+X)B^{-1}=C$

then multiplying on the right by $B$ ,

$((A+X)B^{-1})B=CB$

$(A+X)(B^{-1}B)=CB$

$A+X=CB$

and finally subtracting $A$ from both sides to end up with

$X=CB-A$

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3 years ago

34 out of 99 how do you turn those in a decimal

MrRissso [65]

You have to divide 34 by 99, 34/99=0.343434343

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3 years ago