All categories

3 years ago

8. Ana bought a package of two DVDs for

Mathematics

2 answers:

mixas84 [53]3 years ago

7 0

Answer:

Step-by-step explanation:

If 2 dvd’s cost $12, you take the total of $12 and divide by 2. Each dvd costs $6

sladkih [1.3K]3 years ago

4 0

i think its B. $6.00

You might be interested in

Last choice says -a,o please help what are the coordinates of p please help need help ASAP

Pavlova-9 [17]

Coordinate points of P are opposite points (b,0)

(-b , 0) is opposite of (b,0)

Answer is the second option (-b,0)

8 0

4 years ago

A club decides to sell T-shirts for $12 each as a fund-raiser. It costs $20, plus $6 per T-shirt to make the T-shirts. Write and

Elza [17]

You would need to sell 20 shirts to make a 100 dollar profit.

4 0

3 years ago

Jill has a swimming pool in her backyard. It is shaped like a rectangle and measures approximately 16.3 feet wide and 26.2 feet

balu736 [363]

Answer:

The dimensions of swimming pool are:

Length = 26.2 feet

Width = 16.3 feet

Height = 5 feet

During a few hot weeks during the summer, some water evaporates from the pool, and Jill needs to add 8 inches of water to the depth of the pool.

We will convert 8 inches o feet.

1 inch = 1/12 feet

So, 8 inch = $8/12=0.66$ feet

Now we have to tell how much water will be there in 0.66 feet depth.

So, volume = $16.3\times26.2\times0.66=281.86$ cubic feet.

1 cubic feet has 7.480 gallons

So, 281.86 cubic feet will have $281.86\times7.480=2108.31$ gallons of water.

7 0

4 years ago

NEED HELP PLEASE HELP ME

slavikrds [6]

Answer:

Negative

Step-by-step explanation:

Line is decreasing

7 0

2 years ago

Read 2 more answers

a cuboid with a volume of 924 cm3 has dimensions 4cm (x+1)cm and (x+11)cm. show clearly that x^2 +12x-220=0. show the equation b

nikdorinn [45]

Answer:

Part 1)

The equation by factorization is

$x^{2}+12x-230=(x-(-6+\sqrt{266}))(x-(-6-\sqrt{266}))$

Both values of x are

$x1=-6+\sqrt{266}$

$x2=-6-\sqrt{266}$

Part 2) The dimensions of the cuboid are

$4\ cm$ , $(-5+\sqrt{266})\ cm$ and $(5+\sqrt{266})\ cm$

Step-by-step explanation:

step 1

we know that

The volume of the cuboid is equal to

$V=LWH$

substitute the given values

$V=4(x+1)(x+11)$

$V=924\ cm^{3}$

$4(x+1)(x+11)=924\\4(x^{2}+11x+x+11)=924\\ 4(x^{2}+12x+11)=924\\x^{2}+12x+11=231\\x^{2}+12x-230=0$

Complete the square

$x^{2}+12x-230=0$

$x^{2}+12x=230$

$x^{2}+12x+36=230+36$

$(x+6)^{2}=266$

square root both sides

$x+6=(+/-)\sqrt{266}$

$x=-6(+/-)\sqrt{266}$

$x1=-6+\sqrt{266}$

$x2=-6-\sqrt{266}$

therefore

The equation by factorization is

$x^{2}+12x-230=(x-(-6+\sqrt{266}))(x-(-6-\sqrt{266}))$

step 2

Find the dimensions of the cuboid

The dimensions are

$4\ cm$

$(x+1)\ cm -----> (-6+\sqrt{266}+1)=(-5+\sqrt{266})\ cm$

$(x+11)\ cm ----> (-6+\sqrt{266}+11)=(5+\sqrt{266})\ cm$

4 0

3 years ago

Read 2 more answers