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3 years ago

Please answer this question fastly

Mathematics

1 answer:

Anni [7]3 years ago

8 0

Answer:

4 3/20 cm

Step-by-step explanation:

Perimeter of a triangle = 16 3/5 cm

Side A = 5 7/10 cm

Side B = 6 3/4 cm

Side C = x cm

Perimeter of a triangle = side A + side B + side C

16 3/5 = 5 7/10 + 6 3/4 + x

83/5 = 57/10 + 27/4 + x

83/5 = (114+135) / 20 + x

83/5 = 249/20 + x

x = 83/5 - 249/20

= (332-249) / 20

= 83/20

= 4 3/20

x = 4 3/20 cm

Side C = x cm = 4 3/20 cm

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Write the equation of the line that is perpendicular to 5x + 3y = -21 and

Marta_Voda [28]

Answer:

5x + 3y = -21

Step-by-step explanation:

i think sorry if its wrong

3 0

2 years ago

A property had a list price of $164,000, an actual sale price of $158,000 and a $124,000 loan. If the transfer fee was $3 per $1

Kryger [21]

Answer:

The fee was $474.

Step-by-step explanation:

Given:

A property had a list price of $164,000, an actual sale price of $158,000 and a $124,000 loan.

If the transfer fee was $3 per $1,000.

Now, to find the fee.

The list price of the property = $164,000.

The sale price of the property = $158,000.

And the amount of loan = $124,000.

As, the transfer fee is based on the sale price of the property.

The transfer fee was $3 per $1,000.

So, let transfer fee be $x$ for $158,000.

If, 3 is equivalent to $1000.$

Then, $x$ is equivalent to 158,000.

Now, to get the fee by using cross multiplication method:

$\frac{3}{1000} =\frac{x}{158000}$

By cross multiplying we get:

$474000=1000x$

Dividing both sides by 1000 we get:

$474=x$

$x=\$474.$

The transfer fee = $474.

Therefore, the fee was $474.

5 0

4 years ago

Four more than a number is 6

Eva8 [605]

4 + x = 6

x = 6-4

x = 2

the number is 2

7 0

3 years ago

Read 2 more answers

How to find the inverse of a function

Studentka2010 [4]

Switch the x and the y and solve for y
eg inverse of 2y= 3x+1
swith x and y
2x=3y+1
now solve for y
y =(2x-1)/3

5 0

4 years ago

A mother is 26 years older than her daughter. The daughter is one-third her mother's age. How old is each now? When will the mot

marshall27 [118]

Answer:

now: daughter: 13, mother: 39
then: daughter: 26, mother: 52

Step-by-step explanation:

If the daughter's age is 1/3 the mother's age, the difference in their ages is ...

1-1/3 = 2/3

the mother's age. The daughter's age is half that (1/3 the mother's age), so the daughter's age is 26/2 = 13 years. The mother's age is 13+26 = 39 years, which is 3 times the daughter's age.

The daughter is 13 now; the mother is 39.

When the mother is twice as old, the daughter's age will be equal to their age difference: 26. The mother's age will be 26 +26 = 52

When the mother is twice as old, she will be 52, and the daughter will be 26.

_____

Additional comment

You can assign variables and write equations that will give you the same result. If you let d and m represent the daughter's age and the mother's age, respectively, you could write the system ...

m = d +26

d = m/3

Substituting for d, you get ...

m = m/3 +26

2/3m = 26 . . . . . . subtract m/3

Note that this is the relationship we came to in the discussion above.

When an age difference is given, you know it will remain the same throughout the problem. Everybody ages at the same rate, so the difference is constant. As we have done above, it is often useful to compare the age difference to the difference in ratio units. This tells you the size of a ratio unit.

3 0

3 years ago

Please answer this question fastly​

Please answer this question fastly