The amount of time it takes for an ice cube to melt varies inversely to the
air temperature, in degrees. At 70°F the ice will melt in 20 min. How long
vill it take the ice to melt if the temperature is 85°F?

Answer:

What are you talking about

Step-by-step explanation:

Answer:

Point

Step-by-step explanation:

its kinda in the name

Answer number 1.:

x=

31

​

−6≈−0.432235637

x=−

31

​

−6≈−11.567764363

answer number 2.:

Factor:

3 (x-(6 - 2   10

Evaluate:  

3 ( x2 - 12x -- 4)

x/4 = 55

=> x = 55 × 4

=> x = 220

Answer:

x = 220

Step-by-step explanation:

220 divided by 4 = 55

or

55 x 4 = 220

...

Answer:

1)  f-2g

2) h+3fg

Step-by-step explanation:

1)

2)

#1.

[tex]f(4) - g(2) + f(3))[/tex]

[tex]4f-2g + 3f[/tex]

[tex]4f - 3f - 2g[/tex]

[tex]f-2g[/tex]

#2.

[tex]h(1) + f(1) x g(3)[/tex]

[tex]h+fx 3g[/tex]

[tex]h + 3fg[/tex]

Answer:

[tex]\frac{24}{a}[/tex] - b

[tex]\frac{b-2}{a}[/tex]

[tex]\frac{21}{a}[/tex]-[tex]\frac{b}{4}[/tex]

b - [tex]\frac{2}{3}[/tex]a

25 - 2b

5b - 10a

Step-by-step explanation:

a = 3 and b = 8

Plug in a and b into your equations.

25 - 2(8) = 25 - 16..........9

[tex]\frac{8-2}{3}[/tex] = [tex]\frac{6}{3}[/tex]..........2

5(8) - 10(3) = 40 - 30..........10

[tex]\frac{24}{3}[/tex] - 8 = 8 - 8..........0

[tex]\frac{21}{3}[/tex] - [tex]\frac{8}{4}[/tex] = 7 - 2..........5

8 - [tex]\frac{2}{3}[/tex](3) = 8 - 2..........6

Then you order least to greatest.

Answer:

Step-by-step explanation:

we simply the both sides:

6*7=5*7 |:7

So: 6=5 is remained. So I guess you’ll have to write it in this way:

6≠5.

Answer:78

Step-by-step explanation:

Answer:

Where would the decimal number 1.5 be on a number line? The decimal number 1.5 has a whole number of 1, which is the number to the left of the decimal. The number 1.5 is halfway between 1 and 2.

Step-by-step explanation:

Step-by-step explanation:

it is a simple addition and subtraction sequence :

10 + 0 + -21 + 14 = 3

since the result is positive, it is overall a gain.

if the result were negative, it would be an overall loss.

so, he had an overall gain of 3 yards.

Answer:

y-0 = 4/5(x-2)

Explanation:

0 is the y point so it goes in the y-y1 spot. The m or the slope goes into the m spot by the parenthesis. The 2 goes into the spot of the m-m1. One thing that is important is that when plugging in the point into the equation is to always put in the inverse. So if 3 was the y point, the equation would be y-3, if it was a negative point it would be, y + 3.

a. Based on the AA similarity theorem, Gilligan can conclude that, ΔABC ~ ΔSDC.

b. To the nearest tenth of a foot, the distance from the ship to the shore is: 847.8 ft.

The ratios of the corresponding sides of two triangles that are similar are equal.

Two triangles with two pairs of congruent angles are similar to each other based on the AA similarity theorem.

a. In ΔABC and ΔSDC, there are two pairs of congruent angles - ∠DCS ≅ ∠BCA (vertical angles) and ∠ABC ≅ ∠SDC (right angles)

Therefore, based on the AA similarity theorem, Gilligan can conclude that, ΔABC ~ ΔSDC.

b. AB = 150 ft

Distance from the ship to the shore = SD = ?

DC = 130 ft

CB = 23 ft

Thus:

AB/SD = CB/DC

Substitute

150/SD = 23/130

SD = (150×130)/23

SD = 847.8

Thus, to the nearest tenth of a foot, the distance from the ship to the shore is: 847.8 ft.

Learn more about similar triangles on:

https://brainly.com/question/11899908

Answer:

Step-by-step explanation:

The two relations can be written in general form using the given variable definitions as ...

  5x +7y -57.40 = 0

  4x +2y -32.60 = 0

The solution using the cross-multiplication method is ...

  d1 = (5)(2) -(4)(7) = 10 -28 = -18

  d2 = (7)(-32.60) -(2)(-57.40) = -228.20 +114.80 = -113.40

  d3 = (-57.40)(4) -(-32.60)(5) = -229.60 +163 = -66.60

  x = d2/d1 = -113.40/-18 = 6.30

  y = d3/d1 = -66.60/-18 = 3.70

The cost of 1 sandwich is $6.30.

The cost of 1 burrito is $3.70.
_____

For more about the cross-multiplication method of solving systems of equations, see ...

  https://brainly.com/question/26397343

Answer:

Step-by-step explanation:

To test if this is a right triangle, let's test these side lengths with the Pythagorean Theorem.

a^2 + b^2 = c^2

c is the hypotenuse, the longest side of a right triangle.

a and b are the legs of the right triangle.

a = 7

b = 15

c = 17

7^2 + 15^2 = 17^2 ?

49 + 225 = 289 ?

274 ≠ 289

Thus, this triangle is not a right triangle since it does not satisfy the Pythagorean Theorem.

have a good day :)

Step-by-step explanation:

[tex]3 < x \geqslant 5[/tex]

Answer:

x = 27

Step-by-step explanation:

this problem is similar to a scale drawing where we can set up a proportion:

'x' is to 5 as 162 is to 30

x/5 = 162/30

cross-multiply:

30x = 810

x = 810/30

x = 27

Answer:

x=27

Step-by-step explanation:

Answer:

I think b it's the only one that makes sense to me

( 575.75 - 65 ) / 15 = amount each player gets

575.75 - 65 = 510.75

510.75 / 15 = $34.05 given to each player

your answer choice should be A

Using the concept of margin of error, it is found that higher samples lead to more precise results, hence the correct option is:

D. it is based on a very large random sample.

The margin of error of a confidence interval is given by:

[tex]M = z\frac{s}{\sqrt{n}}[/tex]

In which:

In this problem the increase in life expectancy regarding regular slow walking should be considerably greater than 2 months, which means that the a larger sample is needed to give a more precise result, hence option D is correct.

You can learn more about margin of error at https://brainly.com/question/25821952

Answer:

x=2 y=16 so (2,16)

Step-by-step explanation:

y=10x-4 --> 8x=10x-4

                  -10x -10x

-2x=-4

-2/-2x -4/-2

x=2

y=10x-4 --> y=10(2)-4

y=20-4

y=16

Answer:

2 ; 16

Step-by-step explanation:

y = 8x _
y = 10x - 4

___________
0=2x-4

4=2x

x=2

=> y=8*2=16

Answer:

D:2x

Step-by-step explanation:

acc, to BOADMAS rule we have to first multiple then add

so , 1+2(x-1)

=> 1+2x-1

=> 2x

Answer:

4 4/15

I put it all in the pic. I am bad at formatting. Sorry. Hope this helps.

:D

Answer:

37.69    (≈ 38 ft²)

Step-by-step explanation:

2πr = 30.77

r = 30.77 / (2 * 3.14) = 4.9

half of free-throw circle area: πr² / 2 = (3.14 * 4.9²) / 2 = 37.69    (≈ 38 ft²)

Answer:

Answers are in picture, and they are color-coded.

Step-by-step explanation:

Hope this helps! Brainliest would be much appreciated! Have a great day! :)

Answer:

Upper quartile- The median of the upper half of a set of data

Lower Quartile- The median of the upper half of a set of data

Quartile- Divides a data set into four equal parts

Range- Difference between the highest and lowest data points

Interquartile- The difference between the upper quartile and the lower quartile

Answer:

6/8 = 12/18

Step-by-step explanation:

hope this helps :D

Volume of 1st box:

[tex]3 \times 5 \times 8 = 120ft ^{3} [/tex]

Volume of 2nd box:

[tex]3 \times 5 \times 4 = 60ft ^{3} [/tex]

Combined volume:

[tex]120 + 60 = 180ft ^{3} [/tex]

Answer:

use this formula

Step-by-step explanation:

Answer:

8x^2-22x+15

Step-by-step explanation:

Multiply them together

Answer:

There are many, many, different expressions equivalent, but if you distribute them together you come up with:

8x² - 22x + 15

Step-by-step explanation:

When distributing (4x–5) (2x-3) we should end up with four values, and then add them together.

[] The outside numbers of 4x and -3

-> 4x * -3 = -12x

[] The inside numbers of -5 and 2x

-> -5 * 2x = -10x

[] The left numbers of 4x and 2x

-> 4x * 2x = 8x²

[] The right numbers of -5 and -3

-> -5 * -3 = 15

Now we can add them together;

-12x + -10x + 8x² + 15

8x² - 22x + 15

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

Answer:

Is there a graph? I would love to help out just need a little more help.

Step-by-step explanation: