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3 years ago

An item on sale costs

Mathematics

2 answers:

Gelneren [198K]3 years ago

5 0

$18
...........................

9966 [12]3 years ago

3 0

The sale price would be 18 dollars. Hope this helps you!

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A factory found that 8% of its produced light bulbs are defective.

Anastaziya [24]

Answer:

Step-by-step explanation:

no. of defective light bulbs= 8/100×500

= 40

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3 years ago

3. Diego drew a scaled version of a Polygon P and labeled it Q.

bogdanovich [222]

Answer:

The scale factor used to go from P to Q is 1/4

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z ----> the scale factor

x -----> area of polygon Q

y -----> area of polygon P

$z^{2}=\frac{x}{y}$

we have

$y=72\ units^2$

Find the area of polygon Q

Divide the the area of polygon Q in two triangles and three squares

The area of the polygon Q is equal to the area of two triangles plus the area of three squares

see the attached figure N 2

Find the area of triangle 1

$A=(1/2)(1)(2)=1\ units^2$

Find the area of three squares (A2,A3 and A4)

$A=3(1)^2=3\ units^2$

Find the area of triangle 5

$A=(1/2)(1)(1)=0.5\ units^2$

The area of polygon Q is

$x=1+3+0.5=4.5\ units^2$

Find the scale factor

$z^{2}=\frac{x}{y}$

we have $y=72\ units^2$

$x=4.5\ units^2$

substitute and solve for z

$z^{2}=\frac{4.5}{72}$

$z^{2}=\frac{1}{16}$

square root both sides

$z=\frac{1}{4}$

therefore

The scale factor used to go from P to Q is 1/4

6 0

3 years ago

Triangle ABC has vertices at A(−3, 4), B(4, −2), C(8, 3). The triangle is translated 4 units down and 3 units left. Which rule r

mylen [45]

Answer:

(x,y) ⇒ (x - 3) (y - 4)

C(5, -1)

Step-by-step explanation:

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4 years ago

Read 2 more answers

Yesterday 96 people attended the school band concert, and 3/4 of them stayed for the cookies and punch. How many people stayed f

kupik [55]

72 people stayed, because 96 ÷ 4 = 24, and 24 * 3 is 72.

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3 years ago

QUESTION 2

gregori [183]

Answer:

Step-by-step explanation:

ppleasepplease share the answers when got them

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2 years ago