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vichka [17]
4 years ago
13

What is the difference between 3/7 and 1/14?

Mathematics
1 answer:
IrinaK [193]4 years ago
8 0
If you use division, 3 divided by 7  is 0.428571429...(terminating decimal like the pi )  and just consider that as 42%.
If you divide 1 and 14, it is 0.0714..(also a terminating decimal .)
And consider that 7% because 0.07 is 7%.
42% is greater than 7%, so that's a difference between those two fractions.

or

you can just think of 2 whole breads, one is split to 7 pieces, and the other is split to 14 pieces. If I take 7 slices from the first bread, and 13 slices from the other, which one would be bigger? It should be the first bread.
But remember,
The bigger the denominator is, the bigger the slice is.
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if motorist drove a distance of 90km at constant speed for the first 40km and then drove 30 km/hr faster for the rest of the jou
elena55 [62]

Answer:

Step-by-step explanation:

The motorist drove at a distance of 90km at a constant speed for the first 40km, and then 20 km/hr faster for the rest of the journey.

The whole journey took him 1hr.

Let S denotes the average speed (in km/hr) for the first 40 km.

Hence we get the following relation,

40/S + (90 - 40)/(S + 20) = 1

or 50/(S + 20) = 1 - 40/S = (S - 40)/S

or (S + 20)(S - 40) = 50S or S^2 - 70S - 800 = 0 or (S - 80)(S + 10) = 0

or S = 80 (km/hr) [Ans]

[S cannot be negative value]

3 0
3 years ago
Find the volume of the pentagonal prism?<br><br> please help me
NikAS [45]

Answer:

126 cm^3

Step-by-step explanation:

Use volume formula (Bh=V): 21×6=126

4 0
3 years ago
Can someone answer the blank ones please!!!
Katyanochek1 [597]

The equation is 155p+225f=5050.

If p = 17, f = 13. This value is a reasonable value in this context.

If f = 28, p = -10. This value is not reasonable in this context.

Step-by-step explanation:

Step 1:

155p+225f=5050,

where p is the part-time memberships and f is the number of full-time memberships.

Kiri needs to make $5,050 a month from this rented space.

Each part-time membership costs $155 and each full-time membership costs $225.

Step 2:

We need to calculate the value of f when p = 17,

Substituting the value, p = 17 in the equation, we get;

125(17)+225f=5050, 225f=5050-125(17),

225f=2925, f = \frac{2925}{225}, f =13.

The value of f = 13 and p = 17. This is a reasonable value in this context.

Step 3:

We need to calculate the value of p when f = 28,

Substituting the value, f = 28 in the equation, we get;

125p+225(28)=5050, 125p=5050-225(28)

125p=-1250, p = \frac{-1250}{125}, p=-10.

The value of f = 28 and p = -10. This is not a reasonable value in this context. as the values of f and p cannot be negative for this given equation.

5 0
3 years ago
THE CHOICES IS IN THE PIC.
Ronch [10]

Answer:

40. D

41. D

42. D

43. C

Hope this helps

7 0
3 years ago
What is the fifth term in the binomial expansion of (x + 5)8?
AlekseyPX
(a+b)^n\\&#10;\displaystyle&#10;T_r=\binom{n}{r-1}a^{n-r+1}b^{r-1}\\\\&#10;T_5=\binom{8}{5-1}x^{8-5+1}\cdot5^{5-1}\\&#10;T_5=\binom{8}{4}x^4\cdot5^4\\&#10;T_5=\dfrac{8!}{4!4!}\cdot x^4 \cdot5^4\\&#10;T_5=\dfrac{5\cdot6\cdot7\cdot8}{2\cdot3\cdot4}\cdot x^4\cdot5^4\\&#10;T_6=2\cdot7\cdot x^4\cdot5^5\\&#10;T_6=43750x^4&#10;
5 0
3 years ago
Read 2 more answers
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