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3 years ago

Based on the graph shown to the right, whose phones cost varies directly with the amount of time spent talking?

Mathematics

2 answers:

Lena [83]3 years ago

8 0

Answer:

Step-by-step explanation:

Given 2 quantities that vary directly, then the graph must pass through the origin.

Nikiya's graph is the only one to do this ⇒ B

sineoko [7]3 years ago

6 0

Answer:

B. Nikiya's only

Step-by-step explanation:

Mark’s cost does not vary directly with time spent talking because the cost of 0 hours is not 0 dollars

For Nikiya’s plan, the value of the constant of variation is 15

which represents Nikiya’s cost per hour

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Please help find area !

11111nata11111 [884]

Answer:

33.32

Step-by-step explanation:

<h2><u>can use cross multiplication </u></h2>

20 : 34

19.6 : x

20x = 19.6 * 34

20x = 666.4

x= 666.4/20

x=33.32

4 0

3 years ago

A glider flies 13 miles north from the airport and then 24 miles diagonally southeast. Approximately how far west does the glide

NISA [10]

Answer:

20.2 miles

Step-by-step explanation:

This can be described by the three sides of a right angled triangle. Let the distance of the glider to the airport be represented by x, applying the Pythagoras theorem:

$/hyp/^{2}$ = $/adj1/^{2}$ + $/adj2/^{2}$

$/24/^{2}$ = $/x/^{2}$ + $/13/^{2}$

576 = $x^{2}$ + 169

$x^{2}$ = 576 - 169

= 407

x = $\sqrt{407}$

= 20.1742

x = 20.2 miles

The glider has to fly 20.2 miles to return to the airport.

8 0

3 years ago

2/3 times what equals 24?

Vikki [24]

Answer:

2/3 x = 24

1/3 x = 12

x = 36

8 0

3 years ago

Read 2 more answers

Help please!!!!!!!^3

riadik2000 [5.3K]

Answer:

Step-by-step explanation:

$-2[-6(-4+7)]\\\\=(-2)(-6)(3)\\\\=12(3)\\\\=36$

4 0

2 years ago

What is the answer for - 18 = 8x

Aleksandr-060686 [28]

$-18= 8x \\ x = \frac{-18}{8} = \frac{-9\times 2}{4 \times 2} =\boxed { \frac{-9}{4}= -2.25}$

8 0

3 years ago