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2 years ago

13

1. Edna bought an RTW dress for Php575.00 at 20% discount. What was the original price?

1 answer:

hichkok12 [17]2 years ago

7 0

Answer:

i think original price Php656.25

Step-by-step explanation:

original price Php x

80%x = 575

x = 575×100/80

x = 656.25

original price Php656.25

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The ratios of the measures of the angles in a triangle is 3:10:7. Find the measure of the smallest angle. Just write the numeric

Burka [1]

Answer to written question:
3x + 10x + 7x = 180
Combine like terms
20x = 180
Divide by 20
x = 9
Smallest angle 3x = 3*9 = 27 degrees

Answer to question in picture:
30/6x-2 = 36/5x + 13
Cross multiply
30(5x + 13) = 36(6x-2)
Distribute
150x + 390 = 216x - 72
Subtract 150x
390 = 66x - 72
Add 72
462 = 66x
Divide by 66
x = 7

5 0

2 years ago

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PLEASE HELP ASP!!!

bixtya [17]

Answer:

B. all whole integers

Step-by-step explanation:

the question and x is talking about people, meaning that people cannot be decimals"" , so its b

4 0

2 years ago

1. Write a quadratic function, in standard form, that fits the set of points. Solve it as a system of three equations

sasho [114]

Answer:

The equation is $y=2x^2+4x-7$

Step-by-step explanation:

Let the quadratic function be

$y=ax^2+bx+c$

The point (-4,9) must satisfy this function,

$\Rightarrow a(-4)^2+b(-4)+c=9$

$\Rightarrow 16a-4b+c=9...(1)$

The point (0,-7) must also satisfy this function,

$\Rightarrow a(0)^2+b(0)+c=-7$

$\Rightarrow c=-7...(2)$

The point (1,-1) must also satisfy this function,

$\Rightarrow a(1)^2+b(1)+c=-1$

$\Rightarrow a+b+c=-1...(3)$

We put equation 2 into equation 1 to get;

$\Rightarrow 16a-4b-7=9$

$\Rightarrow 16a-4b=16$

$\Rightarrow 4a-b=4...(5)$

We again put equation 2 into equation 3 to get;

$\Rightarrow a+b-7=-1$

$\Rightarrow a+b=6...(6)$

We add equation 5 and 6 to get;

$5a=10$

$\Rightarrow a=2$

We put $a=2$ into equation 6 to get;

$2+b=6$

$\Rightarrow b=6-2$

$\Rightarrow b=4$

The equation is therefore $y=2x^2+4x-7$

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2 years ago

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Gnom [1K]

Answer:

<h2>= 3/16(0.1875)</h2>

Step-by-step explanation:

<h3>explanation in the image.</h3>

4 0

2 years ago

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A pair of shoes usually sells for $64. If the shoes are 20% off, and sales tax is 8%, what is the total price of the shoes, incl

harina [27]

Answer:

55.3

Step-by-step explanation:

First, take $64 and multiply it by .2.

You'll get an answer of 12.8, now subtract that from 64 to get 51.2.

Take 51.2 and multiply that by .08.

Add 4.1, (since we are rounding) to 51.2, to end with your answer: $55.30.

3 0

3 years ago

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