3 years ago

What is the precent of increase from 40 to 78?

Mathematics

1 answer:

Stells [14]3 years ago

4 0

Answer:

I think it is 38% but plz tell me that it's 40% or just 40

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The measure of two complementary angles are in the ratio 1 : 4. What are the degree measures of the two angles?

AlladinOne [14]

Since the angles are complementary, they add to 90°. So we can write the equation:
x represents the first angle, and 4x represents the second
x+4x=90
5x=90
x=18

So the first angle is 18° and the second is 72° (18*4)

Hope this helps

6 0

3 years ago

Solve and check , -0.7x+2.8=-3.14x-5.2

dlinn [17]

solving:

$( - 0.7 + 3.14)x = - 5.2 - 2.8$

$2.44x = - 8$

$x = \frac{ - 8}{2.44}$

now checking:

$- 0.7 \times \frac{ - 8}{2.44} + 2.8 = - 3.14 \times \frac{ - 8}{2.44} - 5.2$

$\frac{5.6}{2.44} + 2.8 = \frac{25.12}{2.44} - 5.2$

$\frac{12.432}{2.44} = \frac{12.432}{2.44}$

6 0

3 years ago

Grace bought a property valued at $200,00.00 and 20% down and a mortgage amortized over 10 years. She makes equal payments due a

BlackZzzverrR [31]

Answer:

Size of each monthly payment = $161.69 per month

Step-by-step explanation:

Given:

Value of property = $20,000

Downpayment = 20%

Number of payment = 12 x 10 = 120

Interest rate = 4% = 4% / 12 = 0.33 %

Computation:

Loan balance = 20,000 - 20%

Loan balance = $16,000

A] Size of each monthly payment [In Excel]

Size of each monthly payment = PMT(0.33%,120,16000,0)

Size of each monthly payment = $161.69 per month

7 0

3 years ago

is finding the perimeter of a figure with all sides of equal length easier tgan finding the perimeter of other figures?

Lelu [443]

Answer:

yes, there are fewer numbers to compute.

It's just one length x the number of sides.

Step-by-step explanation:

6 0

3 years ago

Write a function that represents the situation. Let t represent the time in years. You deposit $800 in an account that earns 7%

Anna35 [415]

Answer:

pretty sure it's 56 I could be wrong though

3 0

3 years ago