MATHEMATICS MIDDLE SCHOOL

John and Maria are spending the afternoon hiking in the desert. They purchased 6 bottles of water for $9.00, two protein bars for $5.00, and some peanuts for $3.00 as a snack. Suppose they star hiking at 11.30 A.M. and finish the hike at 3.45 P.M. What is the unit rate of money spent to hours hiked? Show your work.

Answers

Answer 1
Answer:

Answer:

They spent $4 per hour hiked.

Step-by-step explanation:

They spent

  • $9.00 in water.
  • $5.00 in protein bars.
  • $3.00 in peanuts.

Total cost $17.

Now, if the hiked from 11.30 AM to 3.45 PM, then they hike for 4 hours and 15 minutes. However, we need to transform those minutes into hours before we find the rate

15min(1hr)/(60min)=(1)/(4)hr=0.25hr

So, they hiked for 4.25 hours.

Then, to find the unit rate of money spent per hour hiked, we just need to divide $17 by 4.25 hr.

(\$17)/(4.25hr)=4(\$)/(hr)

Therefore, they spent $4 per hour hiked.

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What is greater , 42,000 mg or 24 g?

Answers

mg=miligrams=1/1000 gram
so conversion factor is
1g/1000mg
mulriply 42,000mg by 1g/1000mg
units cancel and you are left with
42g
42 g and 24 g
42 is greater than 24g so


42,000 mg is greater
42000 mg is greater
Hope this helps! :)

Write an algebraic expression with the constant 7 and the variable y.

Answers


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7y

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Nick has $7.00. Bagels cost $0.75 each and a small container of cream cheese costs $1.29. Write an inequality to find the numbers of bagels nock can buy. Identify what your variable represents.

Answers

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The circumference of a circle is 16Pi ft.

The radius is __ ft.

Answers

Answer:

8

Step-by-step explanation:

Answer:

the answer is 8

Step-by-step explanation:

A boat can hold 45 people. 27 more people can fit on the boat. How many people are one the boat now?

Answers

72 people can fit in the biat bc if u Add 45+27 7+5=12 so u will put the 2 in the tens and 4+2+1= 7 so the anwser is 72

Jason, Erik, and Jamie are friends in art class. The teacher randomly chooses 2 of the 21 students in the class to work together on a project. What is the probability that two of these three friends will be chosen?

Answers

Now THAT's a problem !
Lemme at it !  Outa my way !

The probability of picking two of the friends to work together is

             (the number of pairs of friends there are)
divided by
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The total number of pairs that can be selected out of 21 students is

                                           (21 x 20) / 2  =  210 pairs.

The probability that the pair selected will be two of the friends is

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