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3 years ago

Please help with math

Mathematics

1 answer:

irakobra [83]3 years ago

8 0

Answer:

5 and 6

Step-by-step explanation:

You have to find two numbers (in the chart) that have a difference of 3/8.

This is just one possiblity, there are other correct answers.

There is size 5 and 6. 9 and 4/8-9 and 1/8=3/8.

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WILL GIVE 11 POINTS How many solutions does the system have?

PSYCHO15rus [73]

There is one answer.

The intersecting points are (0, 5) just for the extra if you graph them both.

7 0

3 years ago

Plz help me answer this!!!

larisa86 [58]

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

c=1/4

Decimal Form:

c=0.25

8 0

3 years ago

the volume of a cube is increasing at a constant rate of 824 cubic centimeters per minute. At the instant when the volume of the

Maurinko [17]

Answer:

DA/dt = 75.27 cm²

Step-by-step explanation:

Cube Volume = V(c) = 683 cm³

DV(c) /dt = 824 cm³

V(c,x) = x³

Then

DV(c,x)/ dt = 3x² Dx/dt

( DV(c,x)/ dt )/ 3x² = Dx/dt (1)

Now as V(c,x) = x³ when V(c,x) = 683 cm³ x = ∛683

x = 8.806 ( from excel)

And by subtitution of this value in equation (1)

Dx/dt = ( DV(c,x)/ dt )/ 3x² ⇒ Dx/dt = 824 / 3*x²

Dx/dt = 824 /3*77.55

Dx/dt = 824/232,64

Dx/dt = 3,542

Then we got Dx/dt where x is cube edge. The area of the face is x² then

the rate of change of the suface area is

DA/dt = ( Dx/dt )²*6 ( 6 faces of a cube)

DA/dt = (3.542)²*6

DA/dt = 75.27 cm²

6 0

2 years ago

A sneeze can travel up to 100mi/h how many feet per second is this a sneeze can travel up to 100m/h how many feet per second is

JulsSmile [24]

Ok first you have to convert 100 miles to feet.

A mile is 5,280 feet
100x5,280
528,000

Thats how much feet per hour. Now we need to find feet per second. So lets divide 528,000 by 60

528,000/60
8,800

Now we know 8,800 is how much feet per minute now we divide it once more by 60 to find feet per second.

8,800/60
146 2/3

So your answer is 146 2/3ft/sec

Brainliest my answer if it helped you out?

3 0

3 years ago

Kelsey makes pendants that she would like to sell at an upcoming craft fair. She must pay $200 to rent a booth at the craft fair

lubasha [3.4K]

Answer:

Additional <em>26</em> pendants are to be sold to make profit.

Step-by-step explanation:

Rent of booth at the craft fair = $200

Cost of material for each pendant = $7.80

Let Kelsey makes $x$ number of pendants.

To calculate the total spending, we have to add the rent of booth at the craft fair and cost of material for $x$ number of pendants.

Cost of material for $x$ number of pendants = Cost of material for each pendant multiplied by number of pendants

Cost of material for $x$ number of pendants = $7.80 $\times$ $x$

So, total cost = $200 + $7.80 $\times$ $x$

Now, each pendant is sold at $13.50

So, total money made by selling $x$ pendants = $13.50 $\times$ $x$

For making profit, total money made must be greater than the total cost.

Therefore, the inequality becomes:

$\bold{13.50 \times x > 200+7.80\times x }$

Let us solve the inequality now:

$13.50x - 7.80x>200\\\Rightarrow 5.7x > 200\\\Rightarrow \bold{x > 35.08}$

So, at least 36 pendants are to be sold to make a profit.

Additional 36-10 = <em>26</em> pendants are to be sold to make profit.

5 0

3 years ago

Please help with math ​

Please help with math