MATHEMATICS MIDDLE SCHOOL

Sasha drove from her house to the grocery store in 20 minutes. Her return trip took 15 minutes. If the store is 7 miles from her house, what was Sasha's average speed for the round trip, in miles per hour?

Answers

Answer 1
Answer: Total time = 35 minutes
Total distance = 14 miles

I would set this up as a proportion

14/35 = x/60  (60 minutes in an hour)
Now cross multiply and solve.
35x = 840
840/35 = 24 mph
Answer 2
Answer: distance = rate * time
7 miles = rate * 20 minutes 
7/20 = 20r/20
r = 0.35 mph

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Carrie borrowed $840 from a friend to pay for a car repair. Carrie promises to repay her friend in 8 equal monthly payments. The remaining amount Carrie has to repay can be represented by a sequence.
Please answer the question from the attachment.

Plz show your work. Thx!! 2.8 = b/4

Answers

Hey there!

(b)/(4) = 2.8

Firstly, we have to multiply by 4 on each of the sides you are working with

  • (b)/(4) = 2.8 \n \n(b)/(4) (4) \n \n 2.8(4) \n \n Cancel: (4)/(4) \n \n Keep:2.8(4)

Answer:

  • 2.8 (4) = 11.2 \n \nAnswer: b = 11.2

Good luck on your assignment and enjoy your day!

~

PLZ ANSWER THIS QUESTION!a) 17^(-18) ÷ 17^(7)
b) 11^(-6) ÷ 11^(-7)
IT IS VERY EASY

Answers

17⁻¹⁸ / 17⁷=17⁻¹⁸⁻⁷=17⁻²⁵
a^n / a^m=a^(n-m)

Answer: 17⁻¹⁸ / 17⁷=17⁻²⁵

b)
11⁻⁶ / 11⁻⁷=11⁻⁶⁻(⁻⁷)=11⁻⁶⁺⁷=11¹=11

Answer: 11⁻⁶ / 11⁻⁷=11

a survey conducted in a school showed that 65% of the students walked to school. The remaining students took buses to school. The ratio of students who took buses to those who took public buses was 4:3. There were 360 more students who walked than took buses. How many students took public buses to school? Please explain everything you did or just write your equations.

Answers

I fear that there is an error copying your assignment.  
65% of the students walked.  Are all of the other students on buses?  Are there both public buses AND private buses?
Assuming that you need to know BOTH kinds of buses, try this:

65% of the students walked, so since 100% - 65% = 35% then this means that 35% of the students were on buses.
Since we know that there are 360 more walkers than bus riders, then one equation we know is:  65% of S = 360 + 35% of S  (let S = total # of students)
              .65 S     = 360 + .35 S
            - .35 S     =        - .35 S      Subtract .35 S from both sides
              .30  S    =  360                 Divide both sides by .30 (or .3)
                .30           .30
                      S   =  1,200  so we know that this is the total number of students, but that is not what was asked.  
They want to know how many are on buses and specifically how many are on public buses, if I read this correctly.
   Since the walkers = 65% of 1,2000 and we know of means TIMES, then
                                  .65 (1,200) =  780 walkers
 1,200 total students minus 780 walkers = 420 bus riders

Now, if there is not a misprint and we really have to figure out the public bus riders as compared to the private bus riders, then remember the ratio from above in the question:   4 bus: 3 public buses
Now if I read this right, that means that 3/4ths of the bus riders were on public buses
so 3/4 of 420 means 3/4 times 420  = 3 times 105 = 315 public bus riders (which coincidentally leaves 105 private bus riders, but since they are private we don't know much about them.  Ha-Ha..... I made a lame joke.)

So your answer is 315 public bus riders

Answer:

126

Step-by-step explanation:

3.6x65

360-234

Austin makes $5.50 per hour. Which expression represents his pay?Question 2 options:

$5.50h


$5.50 + h


$5.50 - h


$5.50/h

Answers

The answer is 5.50h because h equals the hours and every hour u are receiving 5.50 so you will be multiplying

Order the numbers from least to greatest 0.2, -1.7, -1
-2 3/4, -3/5, 1 3/4
-0.5, -1 2/3,-2.7

Answers

-2 3/4, -2.7, -1.7, -1, -3/5, -0.5, 0.2, 1 3/4

Carolyn says that point A and point B represent opposite integers. a. What is the opposite of the integer represent by point A? By point B? b. Do you agree with Carolyn? Explain

Answers

we are given

point-A= -7

point-B=8

(a)

opposite of point-A is negative of point-A value

so,

opposite of point-A is -(-7)

opposite of point-A is 7

opposite of point-B is negative of point-B value

so,

opposite of point-B is -8

opposite of point-B is -8

(b)

we can see that

opposite of point-A is 7

opposite of point-B is -8

they are not equal

so, this argument is FALSE.......Answer
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Solve for x and y please!
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