18. Jeff traveled at an average speed of 65 miles per hour for 2.5 hours and then traveled at an average speed of 70 miles per hour for 1.5 hours. What was the total distance in miles that Jeff traveled during this time?

A 272.5
B 267.5
C 270
D 337

We are given:                                                                                                        

Density of glass in g/cm³ = 2.5

Finding the density in kg/m³:                                                                              

In converting 2.5 g/cm³ to kg/m³, we will first convert the g to kg

Converting the g to kg:

2.5 g/cm³ * 1

Since 1kg = 1000g, 1kg/1000g = 1

2.5 g/cm³ * 1kg / 1000g

the g in the numerator and the denominator will cancel out and we will get:

2.5 kg / 1000 cm³

Converting the cm³ to m³:

We know that 1 m³ = 10⁶ cm³

So, 10⁶ cm³ / 1 m³ = 1

Multiplying the density by 1

2.5 kg / 10³ cm³   *   1

2.5 kg / 10³ cm³   *   10⁶ cm³ / 1 m³

the cm³ in the numerator and the denominator will cancel out

2.5 * 10⁶ kg / 10³ m³

2.5 * 10³ * 10³ kg / 10³ m³

2.5 * 10³ kg / m³

2500 kg/m³

Answer:

y = 6x -2

Step-by-step explanation:

Answer:

y = 6x - 2

Step-by-step explanation:

pass (1,4)

y = mx + b

b = y - mx = 4 - 6 x 1 = -2

y = 6x - 2

Answer: 30

Step-by-step explanation:

50x .4 = 20

50-20=30

Answer:

I genuinely dont see the answer lol

Step-by-step explanation:

P - Parenthesis

E - Exponent

M - Multiply

D - Divide

A - Add

S - Subtract

[tex](15 - 11)2 + 64 + 4 \\ (4)2 + 64 + 4 \\ 8 + 64 + 4 \\ 72 + 4 \\ 76[/tex]

Answer:

339.12 in³

Step-by-step explanation:

volume of cone: v = Bh/3 = πr²h/3

v = (3.14 * (12/2)² * 9 )/ 3 = 339.12

Answer:

x = (7,0)

y = (0,1)

Step-by-step explanation:

Answer:

(-4,0)

Step-by-step explanation:

Answer:

790 feet

Step-by-step explanation:

19 can be written as 152/8 and 3/4 is equal to 6/8

152/8 + 6/8 = 158/8

158 x 5 = 790

Answer:

I think it's A because that's only 10,620

Answer: b. 11 laptops and 19 tablets

Step-by-step explanation:

Answer:

9. 9 1/2

10. 1 1/2

11. 15 3/4

12. 1 1/3

13. 12 stores sell shoes.

14. the area of the floor is 7,606.625 ft²

15. 3 1/3

16. 4 skateboards

hope this helps. have a good day

Answer:

[tex]3+\frac{5i}{2}[/tex]

Step-by-step explanation:

Simplify and write the answer in the standard form, a+bi. Hope this helps!

Answer:

110.6 meters

Step-by-step explanation:

39.5 x 2.8 = 110.6

Answer:

x = 3

Step-by-step explanation:

exterior angle of a triangle is equal to the sum of the measures of the two remote interior angles

97 + x = 64 + 27

x = 97 - 64 - 27 = 6

Answer: x=-6

you know that the interior angles of a triangle equal 180°. so lets find the remaining angle measure

64 + 27 = 91

180 - 91 = 89

so 89 is the third interior angle of the triangle. now let's find the exterior angle.

you know that the extended angle is supplementary; which means it will equal 180° as well. so lets add the third interior angle we just found and let's add it to the unknown expression:

89 + 97 + x = 180

186 + x = 180

-186        -186

x = -6

now it might seem wrong because x is negative and it feels like it should be positive. but let's check our answer.

64+27+89 does equal 180

and 97+(-6)+89 does equal 180

i hope this helps!

Answer:

31 mins

Step-by-step explanation:

22.7+8 3/10=31 mins

Answer:

f(x) = -2|x| + 1 aka the first option

Step-by-step explanation:

Answer:

x is the right answer because the x value is only going to one output

Step-by-step explanation:

If it is an isosceles triangle, Option A is most suitable.

But if it's a scalene triangle, Option B,C and D would suffice.

Answer: 3 is the oppos ire of -3 and it takes 6 steps to get to it

Step-by-step explanation:

Answer:

"Which number is the opposite of -3?": The number that is opposite of (-3) is 3

"Starting at -3, how many steps does it take to get to the opposite of -3?": It takes 6 steps to get to the opposite of -3.

" What does this number of steps represent?": This number represents the distance between -3 and 3.

Step-by-step explanation:

Answer:

1 hour- 2 bracelets ; 2 hours 2 bracelets; 3 hours 4 bracelets

Step-by-step explanation:

i dont know if correct

Answer:

(95/12,0)

Step-by-step explanation:

Answer:

(7.916, 0)

Step-by-step explanation:

In order to find the X-intercept, let y=0

12x + 5(0) = 95

12x = 95

95/12x = 7.91666...

Therefore, the x intercept is (7.916, 0)

Answer:

If this is supposed to be scientific notation then it is 820. if it is 8.2 times one hundred and two then it is  836.4.

Step-by-step explanation:

Hope this helps. :)

Answer: 162 inches

Step-by-step explanation: 4 yards are 144 inches and 1 yard alone is 36 when you divide it by half it’s 18. (144+18=162)

To convert [tex]4 \dfrac{1}{2}[/tex]  yards of fabric to inches, multiply by 36.

Therefore, there are 162 inches in [tex]4 \dfrac{1}{2}[/tex]  yards.

For the measurement, we know

1 yard = 36 inches

The given measurement is: [tex]4 \dfrac{1}{2}[/tex]  yards

Convert it into an improper fraction,

[tex]4\dfrac{1}{2} = \dfrac{4 \times 2 + 1}{2} \\\\ = \dfrac{9}{2}[/tex]

Thus, [tex]4 \dfrac{1}{2}[/tex]  yards can be written as [tex]\dfrac{9}{2}[/tex]  yards.

Since 1 yard = 36 inches

Therefore,

(9/2) yards = (9/2)x36 inches

= 9 x 18 inches

= 162 inches

Hence,

The measurement  [tex]4 \dfrac{1}{2}[/tex]  yards are equivalent to 162 inches.

To learn more about the measurement unit visit:

https://brainly.com/question/777464

#SPJ6

Answer:

51x 3+51 is the answer from my side

Answer:

0.55 = 55%

Step-by-step explanation:

total people:  220

121/220 = 11/20 = 55%

brainileist pweeeeeez

Answer:

55%

Step-by-step explanation:

121/99+121

0.55

55%

Answer:

x = -16

Step-by-step explanation:

Step-by-step explanation:

make it braintliest please

Answer:

There is nothing to be further simplified. It is how you wrote it. Let me know if it was a mistake I'll edit my answer.

Step-by-step explanation:

Student A is correct, this is because 1.75 cups converts to 14 fluid ounces.