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3 years ago

If 20% of a number is 386, what will be 30% of the same number

Mathematics

2 answers:

GaryK [48]3 years ago

6 0

Answer

579

Step-by-step explanation:

pav-90 [236]3 years ago

4 0

if the 20% of a number is 386, what will be 30% of the same number

Answer will be 157

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Translate the sentence to an equation x minus 6 is 7

Ivan

The answer is x - 6 = 7

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3 years ago

If one side of a rectangle is increased by 12 and an adjacent side is decreased by 3 a rectangle is formed whose perimeter is 64

Dima020 [189]

The length of the side of the original square is 7cm

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3 years ago

A series of quarterly payments of P1,300 each at the first payment is due at 4 years, and the last payment at the end of 12 year

gtnhenbr [62]

Answer:

The Value of Payments is P18,557.15

Step-by-step explanation:

The quarterly payment is an annuity payment.

Use the following formula to calculate the present value of the payments.

PV of Annuity = Annuity Payment x ( 1 - ( 1 + interest rate )^-Numbers of periods ) / Interest rates

Where

Annuity Payment = Quarterly payment = P1,300

Interest rate = 5.12% x 3/12 = 1.375%

Numbers of periods = 4 years x 12/3 = 16 quarters

PV of Annuity = Value of Payments = ?

Placing values in the formula

Value of Payments = P1,300 x ( 1 - ( 1 + 1.375% )^-16 ) / 1.375%

Value of Payments = P18,557.15

4 0

3 years ago

What is the period of the graph of the equation y=3cos2x

Molodets [167]

$the\ period\ cosx\ is\ 2\pi\\\\the\ period\ 3cosx\ is\ 2\pi\\\\the\ period\ 3cos2x\ is\ 2\pi:2=\pi\leftarrow Answer$

6 0

3 years ago

PLEASE HELP ASAPPP!!! 15PT QUESTION!!! Suppose that a ball is rolling down a ramp. The distance traveled by the ball is given by

Sever21 [200]

Answer:

The average velocity of the ball is $137.5 \:ft/sec$

Step-by-step explanation:

First find the velocities at given times and then form two points. Calculate the slope to find the average velocity. The two points are:

$\left(6,\:396\right)\quad and \quad \:\left(6.5,\:464.75\right)$

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}=\frac{464.75-396}{6.5-6}$

$m=137.5$

Best Regards!

5 0

3 years ago