MATHEMATICS HIGH SCHOOL

CAN SOMEONE HELP ME ASAP? The density of a certain material is such that it weighs 7 ounces for every 2.5 gallons of volume. Express this density in tons per cubic meter. Round your answer to the nearest hundredth.

Answers

Answer 1
Answer:

Answer: Density = 0.23 tons per cubic meter.

Step-by-step explanation:

Formula : Density=(Mass(in \ ton))/(Volume (in\ m^3))

1 ton = 32000 ounces

⇒ 1 ounce = 0.00003125 ton

⇒  7 ounces = 7(0.00003125)=  0.00021875 ton

1 gallon = 0.00378541 cubic meter

2.5 gallons = 0.009475 cubic meter

Density= (0.00021875)/(0.009475)\text{ tons per cubic meter}

(21875)/(94750)\text{ tons per cubic meter}\approx0.23\text{ tons per cubic meter}

Hence, Density = 0.23 tons per cubic meter.

Answer 2
Answer:

Answer:

0.02 tons per cubic meter

Step-by-step explanation:

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I am thinking of a number when I double my number and then subtract the result from 5 I get negative 12 what is my number​

Answers

Answer:

-7/2

Step-by-step explanation:

2x-5=-12

2x=-12+5

2x=-7

x=-7/2

The ____ function can be used to determine the number of rows containing a specified value.​

Answers

The COUNT function can be used to determine the number of rows containing a specified value

19 is 30% of what number

Answers

19\ \rightarrow\ 30\%\nx\ \rightarrow\ 100\%\n\nx= (19\cdot100\%)/(30\%) \n\nx= (190)/(3)\ \ \ \Rightarrow\ \ \ x=63 (1)/(3)
19 = 30% x ?
19 = 0.3 x ?
19 ÷ 0.3 = 63, 1/3

A cube has a volume of 64 cubic cm. What is the length of one side?

Answers

the length of one side is 4 V= a^3 so 4^3 is 64

The function fis defined by f(x) = 3x-3. For what value of x is f(x) = 48?

Answers

Answer:

f(17) = 48

Step-by-step explanation:

Since f(x) = 3x-3, to find the value of x when f(x) = 48 can be found by substituting 48 for f(x).

48 = 3x - 3

51 = 3x

17 = x

When x is 17, f(x) is 48.

Answer: x=51/3

Step-by-step explanation:

Make f(x)= 48

48=3x-3

Add 3 on each side

51=3x

Divide by 3

51/3

X=51/3

Barney and Betty break into a parking meter with $5.05 in dimes and quarters in it, and agree that Barney get all the dimes, and Betty will get all the quarters. Barney ends up with five more coins than Betty. How much money did each get?

Answers

so remember that a quarter=25 cents and a dime=10 cents so
represent q=# of quarters
d=# of dimes

so barney gets dimes so replace barney with d and betty with q
barney get 5 more coins than betty
d=5+q
total=5.05=0.25q+0.10d since each is worth 0.25 and 0.10 so we have
d=5+q and 5.05=0.25q+0.10d
subsitue (5+q) for d
5.05=0.25q+0.10(5+q)
distribute
5.05=0.25q+0.50+0.10q
add like terms
5.05=0.35q+0.50
subtract 0.50 from both sides
4.55=0.35q
divide both sides by 0.35
13=q
subsitute
d=5+q
d=5+13
d=18

barney got 18 coins and betty got 13 coins
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