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3 years ago

I'm too lazy to figure this out so if u could help that be great! :D just tell me which one it is

Mathematics

2 answers:

vazorg [7]3 years ago

4 0

It could be in meters or centimeters according to how long the desk is. But it's usually meters because cm is short

Alik [6]3 years ago

4 0

I thinks it's metres because centimeters and milimeters are small and kilometers are big

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Find the mean of 1,0,10,7,13,2,9,15,0,3

svet-max [94.6K]

1,0,10,7,13,2,9,15,0,3/ 10
=60/10
=6

8 0

3 years ago

Read 2 more answers

Solve each system using substitution: 1. 4x - 5y= -15 y= -3x + 22

Bumek [7]

4x - 5y = -15
y = -3x + 22

Plug in your y= equation into the y variable in the other equation

4x - 5 (y) = -15
^^
y = (-3x + 22) = -15

4x - 5 (-3x + 22) = -15

Distribute

4x + 15x - 110 = -15

Combine like terms and add 110 over to -15

19x = 95

Then, divide the whole equation by 19

x = 5

Then, plug in your x into your y= equation

y = -3 (5) + 22
y = -15 + 22
y = 7

x = 5
y = 7
(5, 7)

3 0

3 years ago

Solve the system of linear equations in two variables by elimination or substitution.

taurus [48]

Answer:

( $\frac{1}{2}$ , 0 )

Step-by-step explanation:

Given the 2 equations

4x + 3y = 2 → (1)

2x - 3y = 1 → (2)

Adding (1) and (2) term by term will eliminate the y- term, that is

6x = 3 ( divide both sides by 6 )

x = $\frac{3}{6}$ = $\frac{1}{2}$

Substitute x = $\frac{1}{2}$ into either of the 2 equations and evaluate for y

Substituting into (1)

4( $\frac{1}{2}$ ) + 3y = 2

2 + 3y = 2 ( subtract 2 from both sides )

3y = 0 ⇒ y = 0

Solution is ( $\frac{1}{2}$ , 0 )

8 0

3 years ago

Which expression is equivalent to StartRoot 200 EndRoot?

Verdich [7]

Answer:

b) √200 = 10√2

Step-by-step explanation:

Here, the given expression is: √200

Simplifying the given expression, we get:

200 = 2 x 2 x 2 x 5 x 5

⇒ 200 = (2)² x (5) ² x 2

Taking ROOT both sides, we get: $\sqrt{200} = \sqrt{(2)^{2} \times (5)^{2} \times 2}\\\implies \sqrt{200} = \sqrt{(2)^{2} } \times \sqrt{(5)^{2} } \times \sqrt{(2) } = 2 \times 5 \times \sqrt{2}\\ = 10 \sqrt {2}\\\implies \sqrt{200} = 10 \sqrt {2}$

Hence, √200 = 10√2

5 0

3 years ago

Read 2 more answers

barry has 18 more marbles than heidi.if barry has 92 marbles,write and solve an equation to determine the number of marbles heid

Basile [38]

N= Heidi's marbles
92 - n =18 (Barry's 92 marbles - whatever Heidi has = 18 marbles difference)

92 -n +n = 18 +n (I added n to each side)
92 = 18+n
92 -18 = 18-18 + n (I subtracted 18 from both sides)
74 = n Heidi has 74 marbles

4 0

3 years ago