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3 years ago

What does -(-5) equal/mean?

Mathematics

1 answer:

Andrews [41]3 years ago

6 0

Answer:

it means positive 5. because negative + negative = positive or you can think like -1 times -5 which is 5.

Step-by-step explanation:

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A car drives 494 km in 4 hours 45 minutes what is its average speed in kilometers per hour?

Artist 52 [7]

The average speed is 104 kilometer per hour

Solution:

Given that,

A car drives 494 km in 4 hours 45 minutes

To find: Average speed in kilometers per hour

The average speed is given by formula:

$Average\ speed = \frac{distance}{time}$

From given,

Distance = 494 km

Time = 4 hours 45 minutes

We know that,

1 hour = 60 minutes

Therefore,

$45\ minutes = \frac{45}{60}\ hour\\\\45\ minutes = 0.75\ hour$

Thus,

time = 4 hours 45 minutes = 4 hour + 0.75 hour = 4.75 hour

Thus average speed is:

$Average\ speed = \frac{494}{4.75}\\\\Average\ speed = 104$

Thus average speed is 104 kilometer per hour

6 0

3 years ago

The store manager of Price Chopper wants to put two cereal box displays side by side. Each of the displays will be constructed w

Volgvan

Answer:

The two possible displays are;

(1) 6 boxes wide by 8 boxes high and

(2) 12 boxes wide and 4 boxes high

The number of cereal box the new display will hold combined is 96 cereal boxes

Step-by-step explanation:

Here we have that the length of the bottom layer = 6 cereal boxes

Maximum height cannot be more than ten boxes high

Number of cereal box per display = 48

Therefore one cereal box display can be 6 boxes wide by 8 boxes high

While if the cereal box dimensions are Length = 2 × Width

Then the second cereal box display can be 12 boxes wide and 4 boxes high

The two possible sets of dimensions are;

(1) 6 boxes wide by 8 boxes high and

(2) 12 boxes wide and 4 boxes high

The first display will hold 48 cereal box displays while the second will hold

12 × 0.5 × 4 × 2 = 48 cereal boxes

The combined number of cereal boxes the new display will hold is 48 + 48 = 96.

7 0

3 years ago

Question 3 (2 points)

kozerog [31]

A :Larger because 1.5 is less than 1 .
B:Smaller because 1.5 is less than 1 .
c: Larger because 1.5 is greater than 1.
D:Smaller because is greater than 1 Time left for this assessment:

4 0

2 years ago

Please help?!??!!?????

vredina [299]

Area of it is 54ft Kv

Volume is 27 ft cube (3)

6 0

3 years ago

6x - 2(x + 4) = 6 + 2x

Minchanka [31]

Answer:7

Step-by-step explanation:

Simplifying, 6x-2x-8 = 6 + 2x

4x -8 = 6 + 2x

2x =14

x=7

4 0

3 years ago

Read 2 more answers