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3 years ago

What is the basic unit of weight in the metric system

1 answer:

7 0

Welllll ... Weight is not actually a 'basic' unit at all.

'Mass' is, and its unit is the kilogram.

'Weight' is a 'force' ... a derived unit ... made up
of mass and acceleration. The unit of force is
the (kg-meter/sec²), called the "Newton"

(1 newton) is the force that accelerates (1 kilogram of mass)
at the rate of (1 meter per second) every second.

You might be interested in

The first side of a triangle is four inches longer than twice the

Galina-37 [17]

Answer:

1st Side: 27 inches, 2nd Side: 23/2, 3rd Side: 67/2

Step-by-step explanation:

Let's solve your problem step by step:

First side should be: 2x+4

Because 2 times the second side =, and 4 longer than that.

Second side should be: x

This is the base of the equation, since all the numbers depend on "x"

Third side should be: (3x+4)-5

Because x + x+4, and the third side is 5 shorter..

We add all and we get 72.

Solve for x.

x=23/2

Now, we can solve for other sides, by doubling it and adding 4.

This is answer is correct, I tried it. :)

8 0

3 years ago

Express each rate as a unit rate. 70 miles in 2 hours

Radda [10]

Answer:

35 miles per hour

Step-by-step explanation: Showing Work

This is a fraction equal to

70 miles ÷ 2 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 2

70 miles ÷ 2

2 hours ÷ 2

=

35 miles

1 hour

=

35 miles

hour

= 35 miles per hour

8 0

3 years ago

One month Lucy rented 9 movies and 7 video games for a total of $65 . The next month she rented 3 movies and 5 video games for a

postnew [5]

You would answer this question using simultaneous equations, so if m is movies and v is video games, then:
9m + 7v = 65
3m + 5v = 37

9m + 7v = 65
9m + 15v = 111
(minus)
-8v = -46
÷ -8
v = $5.75
Then you can substitute the value of V in to find the value of m, so:
3m + (5 × 5.75) = 37
3m + 28.75 = 37
- 28.75
3m = 8.25
÷ 3
m = 2.75
So you get the answers as Video Games are $5.75 each and Movies are $2.75 each, I hope this helps!

4 0

3 years ago

Triangle ABC is similar to triangle QRS by the AA Similarity Postulate. Also, m∠A = 72° and m∠S = 56°. What is m∠B?

White raven [17]

∠B = 52°

Since the triangles are similar then

∠C = ∠S = 56°

∠B = 180° - (72 + 56)° = 52°

7 0

4 years ago

If rhe discriminant of a quadratic equation is equal to -8 which statement describes the roots

Nastasia [14]

Answer:

Step-by-step explanation:

Given

$Discriminant = -8$

Required

Determine the type of roots

Represent Discriminant with D; such that

$D = -8$

D is calculated as thus

$D = b^2 - 4ac$

And it has the following sequence of results

When $D > 0;$ then the roots of the quadratic equation are real but not equal

When $D = 0;$ then the roots of the quadratic equation are real and equal

When $D < 0;$ then the roots of the quadratic equation are complex or imaginary

Given that $D = -8$ ; This means that $D < 0;$ and base on the above analysis, we can conclude that the roots of the quadratic equation are complex or imaginary

6 0

3 years ago