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3 years ago

Number of seconds equal to 1/5 hour

Mathematics

2 answers:

kirill115 [55]3 years ago

8 0

1/5 of an hour is 12 minutes. 60 seconds x 12 minutes= 720 seconds

Minchanka [31]3 years ago

7 0

There are 720 seconds in a fifth of an hour.
$\frac{1}{5}$ of an hour (60 minutes) is 12 minutes.
12×60 is 720.

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3/4 + 5/4 =? I need help ASAP .

Hitman42 [59]

$\dfrac{3}{4}+\dfrac{5}{4}=\dfrac{3+5}{4}=\dfrac{8}{4}=2$

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3 years ago

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Novosadov [1.4K]

Answer:

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Step-by-step explanation:

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A truck uses 1 gallon of diesel for every 12 miles traveled. The amount of diesel left in the gas tank, r gallons, after traveli

Snezhnost [94]

The question has missing details. However, general questions that could be asked is as follows:

(1) The number of miles traveled after using (say) 5 gallons

(2) The number of gallons used after traveling for (say) 36 miles

Answer:

See Explanation

Step-by-step explanation:

Given

$s = 120 - 12r$

A linear equation is represented as:

$y = c + mx$

Where

$c =y\ intercept$ and

$m = slope.$

c, in this question represents the initial capacity of the tank.

So, the initial capacity is 120 liters

Solving (a): r = 5

$s = 120 - 12r$

$s = 120 - 12 * 5$

$s = 120 - 60$

$s = 60$

60 miles traveled

Solving (b): s = 36

$s = 120 - 12r$

$36 = 120 - 2r$

Collect like terms

$2r =120 -36$

$2r =84$

Solve for r

$r = 42$

42 gallons used

4 0

3 years ago

Find 4ab when (a+b)=15 and (a-b)=12

Volgvan

A + b = 15 ..... eq 1
a – b = 12 ...... eq 2

So a = 15 – b
Substitute in eq 2 :

15 – b – b = 12
15 – 2b = 12
–2b = 12 – 15
b = 1.5

So a = 15 – 3/2 = 13.5

4ab = 4 x 13.5 x 1.5 = 81

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3 years ago

Read 2 more answers

Graph: y = 12 - 41 + 2

tankabanditka [31]

Step-by-step explanation:

y=-27

...................

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3 years ago