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3 years ago

Multiply. Use the Decimal model 0.8 x .4

Mathematics

2 answers:

DIA [1.3K]3 years ago

8 0

If you do 8 x 4 = 32
Then move the decimal place back 2 places you get 0.32 which is the answer

Ahat [919]3 years ago

8 0

0.32

8•4=32.
You just have to move two decimal spaces to the left.

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Express the percent as a decimal. { 98% }

soldier1979 [14.2K]

Answer:

98.

Step-by-step explanation:

6 0

3 years ago

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Help with last math question!! <br> Will mark and star!! <br> ⚓ (>‿◠)✌

muminat

The answer is either B or D

6 0

3 years ago

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Help

kykrilka [37]

Let n = the hours elapsed when the two trains are 660 miles apart.

Let the first train travel east and the second train travel west.

The distance traveled by the first train is

x = (50 mi/h)*(n h) = 50n mi

The distance traveled by the second train is

y = (60 mi/h)*(n h) = 60n h

The distance between the two trains after n hours is

x + y = 50 n + 60n = 110n mi

Because this distance is 660 miles, therefore

110n = 660

n = 6 hours

Answer: 6 hours

I hope this helps. Sorry it took so long

3 0

3 years ago

2. Which of the following are terms of the series with nth term T-3n +17? a) 80 b) 170 c)217 d) 312 e) 278 f) 3566

pishuonlain [190]

Answer:

The correct options are a,b,e and f.

Step-by-step explanation:

It is given that the nth terms of the series is defined as

$T_n=3n+17$

Subtract 17 from both the sides.

$T_n-17=3n$

Divide both sides by 3.

$\frac{T_n-17}{3}=n$

The term Tₙ is a term of given series if n is a positive integer.

(a) The given term is 80.

$n=\frac{80-17}{3}=21$

Since n is a positive integer, therefore 80 is a term of given series.

(b) The given term is 170.

$n=\frac{170-17}{3}=51$

Since n is a positive integer, therefore 170 is a term of given series.

$n=\frac{217-17}{3}=66.67$

Since n is not a positive integer, therefore 217 is a term of given series.

(d) The given term is 312.

$n=\frac{312-17}{3}=98.33$

Since n is not a positive integer, therefore 312 is a term of given series.

(e) The given term is 278.

$n=\frac{278-17}{3}=87$

Since n is a positive integer, therefore 278 is a term of given series.

(f) The given term is 3566.

$n=\frac{3566-17}{3}=1183$

Since n is a positive integer, therefore 3566 is a term of given series.

Thus, the correct options are a, b, e and f.

7 0

3 years ago

What is product of -12 and -4

kompoz [17]

The answer is -16.

-12+(-4) = -16
^is this the equation you meant or?

7 0

3 years ago