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4 years ago

Is 20 ÷ (x + 2) = 5 a equation or expression?

2 answers:

8 0

This is an EQUATION, because it has a left side, a right side, and an = sign separating the two.

An EXPRESSION does not has "sides" and no = sign.

adell [148]4 years ago

7 0

This is an equation because it equals 5.

Expressions have no sign. For ex. 12/ (x+2). That would be simplified.

You could solve this equation too.

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I need help on my math please this is the last question on my assignment.

Mila [183]

Answer:

The triangles are made up from the climbing dome divided

Step-by-step explanation:

8 0

2 years ago

Help me pleaseeee:A book sold 37,800 coples in its first month of release. Suppose this represents 9.3% of the number of copies

lys-0071 [83]

Answer:

406452

Step-by-step explanation:

Set up a proportion

9.3/37800=100/x

7 0

3 years ago

With three boys on a large scale, it read 170 pounds. When Adam stepped off, the scale read 100 pounds. When both Adam and Ben s

Elden [556K]

Answer:

Adam = 70 pounds

Ben = 40 pounds

C = 60 pounds

Step-by-step explanation:

We can work out some equations based on the given information:

We can call the boys A, B and C

so,

when all three boys are standing on the scale, it reads 170 pounds.

$A + B + C = 170$ - Eq(1)

when Adam stepped off, the scale reads 100. This means that the combined weight of the remaining two boys is 100.

$B + C = 100$ - Eq(2)

when both Adam and Ben stepped off, the weight of the remaining boy is shown on the scale.

$C = 60$

So we already knew the weight of boy C. (it was in the question all along)

$C = 60$ pounds

<u>Now to find the individual weights of the remaining boys, we can work our way backwards</u><u> </u>

we can put this value back in Eq(2), to find the weight of boy B.

$B + C = 100$

$B + 60 = 100$

$B = 100 - 60$

$B = 40$

the

the weight of boy B (Ben) is $B = 40$ pounds

now we can put all of the known weights of the boys in Eq(1) to find the weight of Boy A.

$A + B + C = 170$

$A + 40 + 60 = 170$

$A + 100 = 170$

$A = 170 - 100$

$A = 70$

the weight of boy A (Adam) is $A = 70$ pounds

The Answer:

Adam = 70 pounds

Ben = 40 pounds

C = 60 pounds

7 0

4 years ago

Find the slope and the y-intercept of the graph of the linear equation. y=3−12x

pychu [463]

Slope is -12 and y-intercept is 3

3 0

3 years ago

What good with it mayne! Please help yo boy out with the dis math question?

nadya68 [22]

Answer:

1.9

Step-by-step explanation:

Use triginometry to find the side length. So cosθ= $\frac{?}{2}$ . Rearrange the equation so it looks like 2cosθ=?. We are given θ (20 degrees) so 2cos(20degrees)=?.

3 0

3 years ago