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horrorfan [7]
3 years ago
12

Working together, Joy and Steve collected 39 pounds of aluminum cans for recycling. If Joy collected j pounds, which of the foll

owing shows the number of pounds collected by Steve?
Mathematics
1 answer:
shutvik [7]3 years ago
8 0

Answer:

The number of pounds collected by Steve is 39-j

Step-by-step explanation:

Let

j----> the number of pounds collected by Joy

s ---> the number of pounds collected by Steve

we know that

j+s=39

Solve for s

That means-----> Isolate the variable s

Subtract j both sides

s=39-j

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1, 3, 7, 21, 941, 2823, 6587, 19761
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-(x+3) = 2x-6 what is x
Makovka662 [10]

Answer:

x=1

Step-by-step explanation:

So, first you make sure to multiply the parenthesis by the negative so then it would be,

-x-3=2x-6

Then you add the -3 from the right to the other side

so, -x=2x-3

Then you want all the X variables to one side so you subtract the 2x to both sides.

so, -3x=-3

divide both by -3

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3 years ago
Solve for B. B x 2 = 36
Drupady [299]

The answer is 18 . Because 36 divided by 2 is 18

3 0
3 years ago
Read 2 more answers
Find the area of a triangle when a = 19.2, A = 53.8°, and C = 65.4 Round to the nearest tenth.
Tju [1.3M]

Answer:

A=181.0\ units^2          

Step-by-step explanation:

step 1

Find the length side c

Applying the law of sines

\frac{a}{sin(A)}=\frac{c}{sin(C)}

substitute he given values

\frac{19.2}{sin(53.8^o)}=\frac{c}{sin(65.4^o)}

solve for c

c=\frac{19.2}{sin(53.8^o)}sin(65.4^o)\\\\c=21.6\ units

step 2

Find the measure of angle B

Remember that the sum of the interior angles in any triangle must be equal to 180 degrees

so

A+B+C=180^o

substitute the given values

53.8^o+B+65.4^o=180^o\\B=180^o-119.2^o\\B=60.8^o

step 3

Find the area of the triangle

we know that

The area of the triangle applying the law of sines is equal to

A=\frac{1}{2}(a)(c)sin(B)

substitute the given vales

A=\frac{1}{2}(19.2)(21.6)sin(60.8^o)\\\\A=181.0\ units^2

3 0
4 years ago
Read 2 more answers
Select the correct product <br> (x2+4) (x2-4)<br><br> x4 16<br> x4+16<br> x2+8x+16<br> x2 8x 16
natka813 [3]
The answer would be x^4 -16
Explanation: use the FOIL method.
(x^2 +4)(x^2 -4)= x^4 +4x -4x -16. 4x and -4x cancel each other out. You are left with x^4 -16.
F- irst
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