Mathematics, 30.01.2020 05:02, SCHOOLWORKZ3768

Evaluate this expression for x=wp, y=4,and z=2.
(8y-2)x÷(z+y)

a)1
b)10
c)50
d)154

Answers: 1

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Answers

answered: jgee13

So let's plug in the values:

$(8*4-2)10\div(2+4)$

Brackets/Parentheses are the highest priority.
Looking in the first set of brackets:
We need to prioritize the multiplication above the division.
So first multiplying,

$(32-2)10\div(2+4)$

then subtracting,

$(30)10\div(2+4)$

then moving to the other parentheses, applying the addition,

$(30)10\div(6)$

Ok we dealt with everything INSIDE of the brackets, so let's drop our brackets remembering that the 30 and 10 are multiplying.

$30\times10\div6$

Apply multiplication/division from left to right.
So first multiply,

$300\div6$

Then finally, divide,

Hope that makes sense!

answered: Guest

Answer: question no. 1 -a. yes, the sides are in the ratio 2 : 5.question no. 2 -b. 59°question no. 3 -c. angles x and y are remote interior angles.question no. 4 -d. 90°, 45° and 45°question no. 5 -b. mn and qrstep-by-step explanation: question no. 1 -rs : xu = 3 : 7.5 = 2 : 5rt : x? = 6.4 : 16 = 2 : 5st : u? = 6 : 15 = 2 : 5as the ratios of all sides are equivalent, the triangles must be congruent and the sides must be proportional.therefore, the answer is: a. yes, the sides are in the ratio 2 : 5.question no. 2 -in the second diagram, angle b is the only letter not shown. therefore, the number must be equivalent to angle b.if we substitute the value of angle b as being 22° in the first diagram, we can now use the angle sum of a triangle to obtain the value of angle a.angle sum of a triangle = 180°therefore: let angle a = aa + 99 + 22 = 180a = 180 - 99 - 22a = 59°therefore, the answer is: b. 59°question no. 3 -angles x and y don't share the vertex of the triangle with the exterior angle w. remote interior angles don't share a vertex of a triangle with an exterior angle. this means that angles x and y are remote interior angles.therefore, the answer is: c. angles x and y are remote interior angles.question no. 4 -the sum of all interior angles of a triangle must be equivalent to 180°.90°, 45° and 45° are the only set of angle measures that are equivalent to 180°.therefore, the answer is: d. 90°, 45° and 45°question no. 5 -the only pair of sides stated in the options which are corresponding are mn and qr.therefore, the answer is: b. mn and qr.

answered: Guest

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Evaluate this expression for x=wp, y=4,and z=2.
(8y-2)x÷(z+y)

a)1
b)10
...