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GrogVix [38]
4 years ago
11

A blueprint of a plot of land has a scale of 1 1/2 cm to m. The length of land measures 15 cm on the blueprint. If l represents

the length of the actual piece of land, what is l?
Mathematics
2 answers:
Aleonysh [2.5K]4 years ago
7 0
Answer: 22 1/2


Explanation: Your multiplying the length by the fraction!!

1 1/2 or 3/2 x 15/1 = 45/2 or 22 1/2



Turn 15 into a fraction. to make it less complex to multiply with.

15 as the numerator and 1 as the denominator to represent 15 wholes!


*45/2* Turn the improper fraction into a mixed fraction!


Either answer works!
spayn [35]4 years ago
6 0

Answer: l = 82.5m

Step-by-step explanation:

11/2 x 15 = 82.5

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Help with pre algebra
olganol [36]

Answer:

The y-axis.

Step-by-step explanation:

This is because it is mirroring across the y-axis, and the x-coordinate's sign is getting changed from positive to negative.

4 0
3 years ago
Read 2 more answers
When Vince does 14 push-ups and 12 sit-ups, it takes a total of 52 seconds. In comparison, he needs 48 seconds to do 12 push-ups
marshall27 [118]

Answer:

it takes 2 seconds to do one situp

it takes 2 seconds to do one pushup

to do 14 pushups, it takes 28 seconds.

to do 12 situps it takes 24 seconds

to do 12 pushups, it takes 24 seconds

BRAINLIEST PLEASE!

hope this helps :)

Step-by-step explanation:

14x + 12y = 52

12x + 12y = 48

^^^ this is an inequality that we can make.  

x stands for pushups

y stands for situps

if we subtract the second equation from the first, we get

2x = 4

x = 2

now we can place x in one of the equations to solve for y

12(2)+12y=48

24 + 12y = 48

12y = 24

y = 2

5 0
2 years ago
How do you use a strategy of 30%of 900?
Julli [10]

Answer: 2 7 0

Step-by-step explanation:

1. We assume, that the number 900 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 900 is 100%, so we can write it down as 900=100%.

4. We know, that x is 30% of the output value, so we can write it down as x=30%.

5. Now we have two simple equations:

1) 900=100%

2) x=30%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

900/x=100%/30%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 30% of 900

900/x=100/30

(900/x)*x=(100/30)*x       - we multiply both sides of the equation by x

900=3.33333333333*x       - we divide both sides of the equation by (3.33333333333) to get x

900/3.33333333333=x

270=x

x=270

now we have:

30% of 900=270

3 0
3 years ago
Solve 8x + c = k for x
mr Goodwill [35]
Ok so this is how you do it.....
You need to get x by itself.
8x + c = k
Subtract c.
8x = k - c
Divide 8 from both sides.
x = k - c / 8
I hope this helps love! :)
3 0
3 years ago
Read 2 more answers
5 % of what number is 12
allochka39001 [22]

Answer: 240

Step-by-step explanation:

Let the missing number be represented by p

5% of p = 12, where 5% = 5/100

Therefore, we can rewrite the expression as:

5/100 x p = 12

= 0.05p = 12

Divide both sides by 0.05 to get the value of p

0.05p/0.05 = 12/0.05

p = 240

Therefore, 5% of 240 = 12

6 0
3 years ago
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