The scale size is 2cm:4m

Answers

Answer 1

Answer: I'm not sure which one is the scale size so i'll solve for both...

Ratio is 2cm:4m
0.02m:4m or 2cm:400cm also work as ratios

400cm/2cm=200 (so the scale is 200X smaller than the original)

Option 1::

If the scale of the item is:

l=12cm and w=6cm

then we can solve for the actual size by multiplying the values by 200

l=12cm*200=2400cm or 24m

w=6cm*200=1200cm or 12m

Option 2::

If the original item has a length of 12m and a width of 6m then:

l=12m and w=6m

We can find the scale length by dividing by 200

l=12m/200=.06m or 6cm

w=6m/200=0.03m or 3cm

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2c/15=8.8 Solve The Equation. What Is The Value Of "C"

Answers

c=66 hope this answers your question

To solve this multiply 8.8 by 15 and then divide by 2.

The roots of the equation x²-kx+28=0 are alpha (a) and alpha (a) + 3.find the values of k.

Answers

The possible values of k are -11 and 11

Solution:

Given that equation is:

$x^2 - kx + 28 = 0$

Roots are:

$\alpha\n\n\alpha + 3$

To find: value of x

The general quadratic equation is:

$ax^2 + bx + c = 0$

$\text{ Product of roots } = (c)/(a)\n\n\text{ Sum of roots } = (-b)/(a)$

From given,

$x^2 - kx + 28 = 0$

a = 1

b = -k

c = 28

Therefore,

$Product\ of\ roots = (28)/(1) = 28$

$Sum\ of\ roots = (-k)/(1) = -k$

Given roots are:

$\alpha\n\n\alpha + 3$

Therefore,

The two roots are two numbers whose difference is 3 and whose product is 28

Those two roots are 4 and 7 or -4 and -7

Then, sum of roots are:

4 + 7 = 11

-4 - 7 = -11

Therefore, the possible values of k are -11 and 11

An art gallery has 18 paintings and 4 photographs displayed in equal rows on a wall,with the same number of each type of art in each row. What could be the number of rows

Answers

looking for a common factor

18 : 1, 2, 9, 18

4: 1, 2, 4

so the rows would be 2 rows and their would be 2 photographs and 9 paintings in each

Which is what the length of the hypotenuse of the triangle ?

Answers

For this, you will be doing the pythagorean theorem, which is $leg^2+leg^2=hypotenuse^2$ . In this case, the legs are 12 and 35 and the hypotenuse is AB. Using this, the equation will look like this:

$12^2+35^2=AB^2$

Firstly, solve the exponents: $144+1225=AB^2$

Next, add up 144 and 1225: $1369=AB^2$

Lastly, square root each side, and your answer should be $37 = AB$

In short, the hypotenuse is 37 ft, or the last option.

Answer:

THE ANSWER IS D ON EDGEN.

Step-by-step explanation:

D. 37 ft.

What is 4 hours and 39 mins before 7:53 p.m

Answers

4 hours and 39 minutes before 7:53 p.m. is 6:34 p.m.

To find the time 4 hours and 39 minutes before 7:53 p.m., we can subtract the given time from the duration.

Step 1: Convert 4 hours and 39 minutes into minutes.

4 hours = 4 * 60 = 240 minutes

Total duration = 240 minutes + 39 minutes = 279 minutes

Step 2: Subtract the duration from the original time.

7:53 p.m. - 279 minutes

Subtract the minutes first:

53 minutes - 279 minutes = -226 minutes

Now, since the result is negative, we need to "borrow" an hour from the original time:

7 p.m. - 1 hour = 6 p.m.

So, 4 hours and 39 minutes before 7:53 p.m. is 6:34 p.m.

To know more about hours:

brainly.com/question/53809

#SPJ2

Its 3:14 p.m what you do is simply subtract 7:53 pm from 4:39 pm or you get a clock and count backwards

Suppose a population has a doubling time of 25 years. By what factor will it grow in 25 years? 50 years? In 100 years?

Answers

Answer:

2,4, and 8.

Step-by-step explanation:

If the population has a doubling time of 25 years, that means that in 25 years the population will double. So for 25 years, the factor will be 2. For 50 years, the factor would be 2x2, which is 4. For 100 years, it is 4x2 which is a scale factor of 8.

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