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Nady [450]
3 years ago
12

3 1/8 - b = 1 3/4 how do I figure out what b is?

Mathematics
2 answers:
uranmaximum [27]3 years ago
8 0
First, your goal is to get the variables to one side, and the numbers to the other. In this case, subtract the 3 1/8 from both sides. Then you will have a negative variable. You can flip the sign on the other side to get a positive variable = a number.

Did not want to do the real math. Explanations are worth more than answer
dedylja [7]3 years ago
7 0
Exact form: b=11/8

Mixed form: b= 1 3/8
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enyata [817]
The answer 73 because you is supposed to use your order of operations so in other words your supposed to use PEMDAS
6 0
4 years ago
PLEASE HURRY! If the triangle on the grid below is translated by using the rule (x, y) right-arrow (x minus 2, y + 2), what will
Romashka [77]

Answer:

-4 pretty sure

Step-by-step explanation:

8 0
3 years ago
A total of $32,000 is invested in two municipal bonds that pay 4.25% and 6.25% simple interest. The investor wants an annual int
Aleks04 [339]

Answer:

$16000 invested in 4.25%  and 16000 invested in 6.25%

Step-by-step explanation:

Let x be the amount invested in 4.25%  and y be the amount invested in 6.25%

4.25%= 0.0425

6.25%= 0.0625

x+y= 32000

subtract x from both sides

y= 32000-x

total interest earned is 1680

0.0425x+0.0625y=1680

0.0425x+0.0625(32000-x)=1680

Now solve for x  and y

0.0425x+2000-0.0625x=1680

subtract 2000 from both sides

-0.02x=1680-2000

-0.02x=-320

divide by -0.02 from both sides

x=16000

y= 32000-x

y= 32000-16000=16000

4 0
4 years ago
Find symmetric equations for the line of intersection of the planes. z = 4x − y − 13, z = 6x + 5y − 13
MArishka [77]
The intersection line of two planes is the cross product of the normal vectors of the two planes.

p1: z=4x-y-13 => 4x-y-z=13
p2: z=6x+5y-13 => 6x+5y-z=13
The corresponding normal vectors are:
n1=<4,-1,-1>
n2=<6,5,-1>

The direction vector of the intersection line is the cross product of the two normals, 
vl=
 i   j   k
4 -1 -1
6  5 -1
=<1+5, -6+4, 20+6>
=<6,-2,26>
We simplify the vector by reducing its length by half, i.e.
vl=<3,-1,13>

To find the equation of the line, we need to find a point on the intersection line.
Equate z:  4x-y-13=6x+5y-13 => 2x+6y=0 => x+3y=0.
If x=0, then y=0, z=-13 => line passes through (0,0,-13)

Proceed to find the equation of the line:
L: (0,0,-13)+t(3,-1,13)
Convert to symmetric form:
\frac{x-0}{3}=\frac{y-0}{-1}=\frac{z-(-13)}{13}
=>
\frac{x}{3}=\frac{-y}{1}=\frac{z+13}{13}

3 0
3 years ago
Is the square root of 40 a rational number or an irrational number?
kkurt [141]
The square root of *40* is an irrational number.
4 0
4 years ago
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