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salantis [7]
2 years ago
8

Write 25×10^6 in standard form. Please can someone help me

Mathematics
2 answers:
Dovator [93]2 years ago
8 0

Answer:

2.5*10^7

Step-by-step explanation:

Standard form is always a number between 1 and 10 (but never exactly 10) multiplied by 10 to the power of something. Just divide the 25 by 10, so it can be used in standard form, and increase the power by 1. Hope this helped! :^)

Lemur [1.5K]2 years ago
4 0
Answer:
2.5 • 10^6

Explanation:
In order for 25 • 10^6 to be written in standard form, the ‘25’ needs to be less than 10. To do that we will move the decimal one place to the left so that 25 is now 2.5; it is now a number less than 10. It should now look like 2.5 • 10^6. It is now in standard form.
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Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit
andrew-mc [135]





This is the graph in 'slope-intercept' form. From here it is easy to see that gradient  = and that y-intercept = 490.
The easiest way to draw a straight-line graph, such as this one, is to plot the y-intercept, in this case (0, 490), then plot another point either side of it at a fair distance (for example substitute  = -5 and  = 5 to procure two more sets of co-ordinates). These can be joined up with a straight line to form a section of the graph, which would otherwise extend infinitely either side - use the specified range in the question for x-values, and do not exceed it (clearly here the limit of -values is 0 ≤ x ≤ 735, since neither x nor y can be negative within the context of the question - the upper limit was found by substituting  = 0).
In function notation, the graph is:


The graph of this function represents how the value of the function varies as the value of x varies. Looking back at the question context, this graph specifically represents how many wraps could have been sold at each number of sandwich sales, in order to maintain the same profit of $1470.
When the profit is higher, the gradient is not changed (this is defined by the relationship between the $2 and $3 prices, not the overall profit) - instead the -intercept is higher:





Therefore we have gleaned that the new y-intercept is 531.
Clearly I cannot see the third straight line. However the method for finding the equation of a straight line graph is fairly simple:
1. Select two points on the line and write down their coordinates2. The gradient of the line = 3. Find the change in  (Δ4. Find the change in  (Δ5. Divide the result of stage 3 by the result of stage 46. This is your gradient7. Take one of your sets of coordinates, and arrange them in the form , where your  is the gradient you just calculated8. There is only one variable left, which is  (the y-intercept). Simply solve for this9. Now generalise the equation, in the form , by inputting your gradient and y-intercept whilst leaving the coordinates as  and 
For example if the two points were (1, 9) and (4, 6):
Δ = 6 - 9 = -3Δ = 4 - 1 = 3 =  = -1I choose the point (4, 6)6 = (-1 * 4) + c6 = c - 4c = 10Therefore, y=10-x

6 0
3 years ago
A rectangular prism has a length of 12 inches, a height of 16 inches, and a width of 20 inches. What is its volume, in cubic inc
drek231 [11]

add 12 with 16 by 20 it gives you 48 cubic inches

12 +16+20=48 cubic inches

3 0
3 years ago
Please help :((( will mark brainliest !
aniked [119]

Answer: i think its c

hope its right

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8 0
2 years ago
The dance committee of Pine Bluff Middle School earns $72 from a bake sale and will earn $4 for each ticket they sell to the Spr
nordsb [41]

Answer:

t > 82

Step-by-step explanation:

First write what we know.

Earned $72

$4 per ticket, t

Cost is $400

So let's write our equation:

The cost is $400 so we put that on the left side,

$400 =

Now on the right side, we know they earned $72, so +$72 and each ticket (t) is $4 so $4t would represent the amount earned after they sell a certain number of tickets.

So we write:

$400 = $4t + $72 Now solve for t to find the number of tickets they need to sell.

400 = 4t + 72   Subtract 72 from each side.

400 - 72 = 4t + 72 - 72  

328 = 4t     Divide each side by 4.

328/4 = 4t/4

328/4 = t

82 = t

If the committee wants money left over they need to sell more than 82 tickets!

Our inequality is:

t > 82

7 0
2 years ago
Given the side lengths determine if the following triangles exist, if they do classify
katrin2010 [14]

Answer:

no

Step-by-step explanation:

no

5 0
3 years ago
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