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V125BC [204]
2 years ago
14

The number of pencils sold varies directly as the cost.if 5 pencils cost $0.45,find the cost of 7 pencils.

Mathematics
2 answers:
vitfil [10]2 years ago
5 0
7 times 0.45 divided by 5 and you get 0.63
egoroff_w [7]2 years ago
4 0


first you do 5/.45

which equals 11.11111111111111111111111

so you round to 11 so you then you

add ,22 by .45

which equals .66

so the answer is:

$0.66

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Answer: 29.6

Step-by-step explanation:

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3 years ago
A number is picked randomly in the range [2,8]. If past selection indicates that the numbers picked are less than 5, what is the
yawa3891 [41]

Answer:

a) P = 2/7

b) P = 4/7

c) P = 1/7

Step-by-step explanation:

In the range of [2,8], we have the following integers which are: 2, 3, 4, 5, 6, 7, 8. So this is a total of 7 integers.

a) We look for the probability that the numbers are less than 4, so we conclude that there are possible numbers 2 and 3 out of possible 7, so the required probability is equal to P = 2/7.

b) We look for the probability that the numbers are greater than 4, so we conclude that there are possible numbers 5, 6, 7, 8 out of possible 7, so the required probability is equal to P = 4/7.

c) Based on the previous two examples, we conclude that the required probability is P = 2/7· 1/2=1/7.

7 0
3 years ago
4x^2 = 28x <br> <br> Solve and explain how you arrived at the solution
dlinn [17]
Step 1: Subtract 28x from both sides.
4x2−28x=28x−28x4x2−28x=0
Step 2: Factor left side of equation.
4x(x−7)=0
Step 3: Set factors equal to 0.
4x=0 or x−7=0
Answer:x=0 or x=7
4 0
3 years ago
If 6 identical articles can be bought for 2<br>17<br>Find the cost of each article.​
Romashka-Z-Leto [24]

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Step-by-step explanation:

3 0
3 years ago
Find the product. x^5 x^4 x^3
Brut [27]
If you would like to solve x^5 * x^4 * x^3, you can do this using the following steps:

<span>x^5 * x^4 * x^3 = x^(5 + 4 + 3) = x^12
</span>
The correct result would be x^12.
8 0
3 years ago
Read 2 more answers
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