Applying ratios and ptoportions today

Answers

Answer 1

Answer: If Mike's garden is pentagonal, that means it has 5 sides. Each side is 8 feet, so the perimeter of Mike's garden is:

8+8+8+8+8=40 ft

To find the perimeter of his neighbor's garden, we can multiply this by the scale factor:

(40)(3/2)=60 ft

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Evelyn goes to a middle school that includes grades 6, 7, and 8. She wants to estimate the percentage of students in the school who ride the bus to school. She selects a random sample of 200 students to survey who are attending an after-school activity. She determines that 38% of the students at the activity ride the bus to school.Which statement about Evelyn's sample is true? A. The sample is the percentage of students who ride the bus. B. The sample might not be representative of the population because it only includes students who are attending an after-school activity. C. The sample shows that exactly 38% of the students in the school ride the bus.
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Yoko earns 48 dollars each week working part-time at a bookstore. She earns one additional dollar for each book that she sells. Let A be the amount (in dollars) that Yoko earns in a week if she sells B books. Write an equation relating A to B. Then use this equation to find the amount of money Yoko earns if she sells 21 books.

8(t+2)-3(t-4=6(t-7)+8

Answers

8(t+2)- 3(t-4) = 6(t-7)+8. Looks like a lot of distributing.
8t+16 - 3t+12 = 6t-42 + 8. Now we can combine like terms.
5t + 28 = 6t - 34. Just solve normally.
28 = t - 34. Add 34 to both sides.
t = 62.

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What are the steps of doing 309 times 29

Answers

1. you do 309 times 29
2. then when you got that answer write a zero at the bottom of that answer.
3. then do 309 times 9
4. then add those 2 answers together and you get your answer.

hope this helped!

Suppose an airplane climbs 15 feet for every 40 feet it moves forward. What is the slope of this airplane's ascent?A) -
3
8
B) -
8
3
C)
1
3
D)
3
8

Answers

the answer is D) 3/8. 15 over 40 (15/40) = 3/8

Answer:

D 3/8

Step-by-step explanation:

Meredith's height is 2/3 of Bianca's height plus 32 inches. Meredith is 60 inches tall. Write an equation to find Bianca's height in inches.

Answers

60 = 2/3b + 32
The answer should be 42

You and your friend are selling tickets to a charity event. You sell 8 adult tickets and 6 student tickets for $126. Your friend sells 12 adult tickets and 13 student tickets for $209. What is the cost of a student ticket?

Answers

s=cost per student ticket
a=cost per adult ticket

value=(students vlue)+(adults value)
student value=(cost per student) times number of students
adult value=(cost per adult) times number of adults

you sell 8 adult and 6 students and that is a value of 126
8a+6s=126

friend sell12 adult and 13 student and get 209
12a+13s=209

so we have
8a+6s=126 and
12a+13s=209
it might help to simplify the first equaiton by dividing by 2
4a+3s=63

we have
4a+3s=63
12a+13s=209
multiply first equaton by -3
-12a-9s=-189

add to secont equaiton

12a+13s=209
-12a-9s=-189 +
0a+4s=20

4s=20
divide 4
s=5

each student ticket costs $5.00

A paper published in a medical journal reported that about 11/25 of girls ages 16-17 do not exercise at all. The entire study consisted of about 2, 500 girls. About how many did not exercise?

Answers

1,400 girls from 16 to 17 do not exerciseStep one2,500÷25=100Step two100×11=1,100Step three2,500−1,100=1,400

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Please solve...Thanks