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Ksivusya [100]
3 years ago
10

What is a simplified expression for 3(2x + y)

Mathematics
2 answers:
musickatia [10]3 years ago
8 0

Answer:

6x + 3y.

Step-by-step explanation:

3(2x + y)

= 3*2x + 3*y

= 6x + 3y.

Brut [27]3 years ago
4 0

Answer:

6x + 3y

Step-by-step explanation:

Multiply 3 by 2x.

Multiply 3 by y.

This is known as the distributive law.

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Use the substation to solve the system of equations. Y=x+1.75 4x-2y=4
beks73 [17]
So we need to plug in y into our equation so our new equation is:

4x - 2(x+1.75) = 4

first lets distribute the 2 by multiplying the values inside the parentheses by 2

4x - 2x + 3.5 = 4

4x - 2x = 2x

so now our equation is 2x + 3.5 = 4

we need to get x by itself on one side of the parentheses so lets move the 3.5 by subtracting by 3.5 on both sides

2x + 3.5 = 2x
4 - 3.5 = .5

new equation: 2x = .5

now to get rid of this 2 (being multiplied by x) we simply have to do the opposite - divide by 2 on each side

2x/2 = x
.5/2 = .25

so our x value is equal to .25!

if you have any questions about how i answered this question please let me know:)
3 0
3 years ago
What is the solution of the equation −14+2x+3=4x−13−7x?
disa [49]

Answer:

-2/5

Step-by-step explanation:

2x - 11 = 4x - 13 - 7x

2x - 11 = -3x - 13

2x - 11 + 3x = -13

5x - 11 = -13

5x=-13+11

5x=-2

X= - 2/5

7 0
3 years ago
Read 2 more answers
If tan theta= 15/8, then,____. A.sec theta = 17/8 B.cos theta = 15/17 C.cot theta = 8/15 D.csc theta = 17/15
seraphim [82]
<span>If tan theta= 15/8, then theta is expected that theta is found in the first and third quadrant. the y-component is 15 and the x-component is 8. hence the hypotenuse is 17 from the pythagoren theorem. cos theta thus is equal to 8/17, sec theta is equal to 17/8. csc theta is equal to 17/15. answer are A and D</span>
3 0
3 years ago
Read 2 more answers
At the beginning of its route, a garbage truck accelerates at 10ms2 as it is driven down the road. By the end of the route, the
Dmitry [639]

Answer:

2.5\ m/s^2

Step-by-step explanation:

Newton's Second Law: Force on a body is equal to the product of mass and acceleration of the centre of the mass of the body.

Force(F)=Mass(m)\times Acceleration(a)

Initially:

Let\ mass=m\ kg\\\\acceleration=10\ m/s^2\\\\Force(F)=m\times 10=10m

At the end of the road:

Let\ mass=4\times m\ kg\\\\acceleration=a\ m/s^2\\\\Force(F)=4m\times a=4ma

Both\ forces\ are\ equal\\\\4ma=10m\\\\divide\ both\ the\ sides\ by\ m\\\\4a=10\\\\a=\frac{10}{4}\\\\a=2.5\ m/s^2

8 0
3 years ago
(r-3)(r-1)<br> Help me please!!!
madreJ [45]

Answer:

= r²−4r+3

Step-by-step explanation:

(r - 3) (r - 1)

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r² + - r - 3r + 3

= r²−4r+3

5 0
3 years ago
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