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3 years ago

14

Lyla and Gio are packing boxes for a food drive. Lyla packs 20.5 boxes per hour. After 2 hours, Gio has packed 10.3 more boxes t

han Lyla, but wants to know how many total he has packed in 2 hours. His work is shown below.

1 answer:

Ira Lisetskai [31]3 years ago

7 0

Answer:

51.3 BOXES

BECAUSE you do 20.5 times 2 to get lyla boxes then you do plus 10.3 because gio fot more than that and 51.3 is the number of boxes he packed since you add 41 which was lyla and then add 10.3 which is gio

Step-by-step explanation:

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For his exercise today, Manuel plans to both run and swim. Let r be the number of laps he runs and lets be the number of laps he

QveST [7]

Answer:

The Inequality describing the situation is $3r+2s>45$ .

Step-by-step explanation:

Let the number of laps he runs be $'r'$

Let the number of laps he swims be $'s'$

Now Given:

Time required to run each lap = 3 min

Time required to swim each lap = 2 min

Total minutes he need to exercise more than 45

we need to write the Inequality representing the same.

Solution:

Now we can say that;

Time required to run each lap multiplied by the number of laps he runs plus Time required to swim each lap multiplied by the number of laps he swims should be greater than Total minutes he need to exercise.

framing in equation form we get;

$3r+2s>45$

Hence The Inequality describing the situation is $3r+2s>45$ .

6 0

3 years ago

With one push, Brian’s toy car traveled 40 centimeters across the rug. When pushed across a hardwood floor, it traveled 95 centi

Grace [21]

Answer:

55

Step-by-step explanation:

95 - 40 = 55 centimeters

5 0

2 years ago

Read 2 more answers

Carlota wrote the equation y + 1 = 2 (x - 3) for the line passing through the points (-1, 3) and (2, 9). Explain and correct her

Art [367]

For this case we have the following equation:

$y + 1 = 2 (x - 3)$

That can be rewritten in the form $y = mx + b$

Where:

m is the slope of the line

b is the cut point

So, we have:

$y + 1 = 2 (x - 3)\\y + 1 = 2x-6\\y = 2x-6-1\\y = 2x-7$

Where:

$m = 2$ is the slope

$b = -7$ is the cut point

Carlota has the following points:

(-1, 3) and (2, 9)

To know if the line $y = 2x-7$ passes through these points, we must replace them in the equation and the equality must be fulfilled. So:

Point (-1, 3):

Substituting:

$3 = 2 (-1) -7\\3 = -2-7$

$3 = -9$ It's false, equality is not met. The point (-1, 3) does not go through the line.

The equation written by Carlota is erroneous, the procedure to follow is:

Given $(x1, y1) = (- 1, 3)$ and $(x2, y2) = (2, 9)$ , we find the slope:

$m=\frac{(y2-y1)}{(x2-x1)}$

$m=\frac{(9-3)}{(2-(-1))}$

$m=\frac{6}{3}$

$m=2$

We observe that the slope found by Carlota is the same. Let's see cut point "b". For this we substitute any of the points given in the equation:

$y = 2x + b$

Substituting (2,9) we have:

$9 = 2 (2) + b\\9 = 4 + b\\b = 9-4\\b = 5$

Thus, Carlota's error was at the cut-off point. The correct equation of the line that passes through the given points is $y = 2x + 5$

Answer:

The correct equation of the line that passes through the given points is $y = 2x + 5$

Carlota's mistake was at the cutoff point

5 0

3 years ago

Matthew made slightly larger blanket that was 8 Ft long. Its area is 64 sq ft what is its perimeter?

Andreas93 [3]

Answer:

32 ft

Step-by-step explanation:

Given data

Length= 8ft

Area= 64 f^2

Let us find the width

Area= Length*Width

64= 8* Width

Width= 64/8

Width= 8ft

Hence the perimeter= 2L+2W

P= 2*8+2*8

P= 16+16

P= 32 ft

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3 years ago

If a hot dog cost $2.99 and 7% tax how much is one hot dog

kicyunya [14]

Since the hotdog is $2.99 with 7% tax increased by hotdog then
$2.99+0.07(2.99)
$2.99+$0.21
=$3.2

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3 years ago

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