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user100 [1]
3 years ago
13

You can buy 3 apples at the quick market for $1.17. you can buy 5 of the same apples at stop and save for $2.30. which place is

a better buy?
Mathematics
1 answer:
omeli [17]3 years ago
4 0
If you divide 1.17 by 3 you get 0.39. If you divide 2.30 by 5 you get 0.46. The quick market has cheaper apples!
You might be interested in
Peter is renting two kinds of rafts for a vacation company. One type seats 3
Nady [450]

Answer:

Peter rents 6 of the rafts seating 3 people, and 7 of the rafts seating 5 people.

Step-by-step explanation:

Let x denote the number of rafts seating 3 people and y the number of rafts seating 5 people. The total number of rafts is 13, so x+y=13. We can also assume that every raft is filled to the brim (it isn't stated explicitly though, but it's probably the intention of the question maker), so 3x+5y=53.

It's always a good idea to put these equations under each other:

\left \{ {{x+y = 13} \atop {3x+5y=53}} \right.

We can subtract the first equation three times from the second one to obtain (3x+5y)-3(x+y) = 53 - 3(13)\\3x-3x + 5y - 3y = 53 - 39\\2y = 14\\y=\frac{14}{2} = 7

Now, substitute this found value for y into x+y = 13 and we see that x=6. We are now done: Peter rents 6 of the rafts seating 3 people, and 7 of the rafts seating 5 people.

5 0
3 years ago
an earthquake measures 3.6 on the richter scale. what is the amount of energy (ergs) released by the earthquake? give an exact a
Alisiya [41]
We have that 

<span>log10 E = 4.4 + 1.5<span>M
</span></span>E=<span>the released energy in Joules (J)
M= </span><span>earthquake measures---------- > 3.6
</span>log10 E = 4.4 + 1.5*3.6
log10 E = 9.8----------> E=10^(9.8)= 6.309573444 x10^9 J
<span>
the answer is  </span>6.309573444 x10^9 J<span>

</span>
5 0
4 years ago
1/2 divided by 3 = blank/2 x 1/2
cricket20 [7]

Answer: blank=2/3

Step-by-step explanation:

1/2/3+x/2x1/2

solve this then answer

5 0
3 years ago
My number is less than 50. - it is a factor of 70. - it is a multiple of 5 and 7. what is minnu's number? a. 5 b. 35 c. 14 d. 70
Nostrana [21]

Answer:

B) 35

Step-by-step explanation:

35 is less than 50 and it's a factor of 70, a multiple of 5 and 7 is 35 just by multiplying the numbers it will give you that answer.

6 0
2 years ago
A medical researcher says that less than 87​% of adults in a certain country think that healthy children should be required to
Lyrx [107]

Answer: It is not enough evidence to support the researcher's claim.

Step-by-step explanation:

Since we have given that

n = 500

\hat{p}=0.85

So, the hypothesis are as follows:

H_0:\hat{p}

So, the z value would be

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\z=\dfrac{0.85-0.87}{\sqrt{\dfrac{0.87\times 0.13}{500}}}\\\\z=\dfrac{-0.02}{0.015}\\\\z=-1.33

At α = 0.05

z= -1.64

So, 1.64<-1.33

So, we accept the null hypothesis.

Hence, it is not enough evidence to support the researcher's claim.

3 0
3 years ago
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