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Fed [463]
3 years ago
6

A heartbeat takes 0.8 seconds.How many sec is his written as a faction?

Mathematics
2 answers:
ZanzabumX [31]3 years ago
8 0
Because 8 is in the tenths place, we can write it as 8/10.

8/10 simplifies to 4/5 (divide numerator and denominator by 2)

Final answer: 4/5 seconds
Arisa [49]3 years ago
6 0
0.8sec=0.8/1sec=8/10sec=4/5sec
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If Y varies directly with X, and Y = -5 and X = 7, what is X when Y = -85?
Tasya [4]

Answer:

X = 119

Step-by-step explanation:

Step 1: Given

Y = -5 X = 7

Y = -85 X = n

Step 2:

-85 ÷ -5 = 17

Step 3:

17 × 7 = 119

Answer:

Y = -5 X = 7

Y = -85 X = 119

n = 119

6 0
2 years ago
A company makes pens. They sell each pen for $99.
Sindrei [870]

Answer:

a) Profit = 84000

b) at break even number of pens sold = 46

Step-by-step explanation:

Profit = Selling price - Cost price

Total revenue generated = 99 * 1000

Total revenue generated = 99000

Total cost on making the pen  = 11 * 1000

Total cost on making the pen = 11000

Total cost including the initial cost = 11000 + 4000

Total cost including the initial cost =  15000

Profit = 99000 - 15000

Profit = 84000

Break even is when the cost are equal to Revenue thus no profit or loss

Revenue = total cost (break even)

9x = 1x + 4000

9x - x = 4000

8x = 4000

x = 500

At breakeven Revenue = 9 * 500

At breakeven Revenue =  4500

since one pen is sold at 99 therefore at break even number of pens sold = 4500/99 = 45.45( to 2 decimal place)

at break even number of pens sold = 46

4 0
3 years ago
Fractions closer to 0 than to 1
bija089 [108]
1 1/1 is the fraction, because ...........
4 0
3 years ago
I need help simplifying this math equation please ?
jenyasd209 [6]

Answer:

9

Step-by-step explanation:

mathwa y use your pic and do it

3 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP <br> 30 PTS + BRAINLIEST TO RIGHT/BEST ANSWER
Viefleur [7K]

Answer:

d. 3x³ and 2x³

Step-by-step explanation:

In standard form, the terms of a polynomial expression are written in order of descending powers of the variable. There will be only one term for any given power of the variable.

Here, there are two terms that have x to the third power. These terms must be combined to write the expression in standard form. They are the only terms that can be combined: 3x³ + 2x³ = 5x³.

7 0
3 years ago
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