Ratios
Thirteen students joined after-school clubs in September. Eight joined the drama club and five joined the chess club. what is the ratio of students who joined the drama club to students who joined the chess club.
8 to 5 or 8:5 or
8/5
In Game 1, Emerson struck out 30 times in 90 times at bat. In Game 2, he struck out 40 times in 120 times at bat. In Game 3, Emerson struck out 42 times in 140 times at bat.
A) Complete the proportion to represent the percent of strike outs per at-bat.
?/350=x/?
112/350=x/100
A department store sells a pair of shoes with an 87% markup. If the store sells the shoes for $192.61 then what is their non-markup price?
$103
April took out a $600 loan form the bank. At the end of 5 years, she pays back the principal, plus $60 simple interest. What was the annual interest rate?
2%
Desham found that about 62% of 80 classmates at school like hip-hop music. However, 70% of their 60 relatives like hip-hop. Do more classmates or relatives like hip-hop.
Classmates
The number of Starburst to the number of Dum-Dums in the candy bowl was 8:5. After 39 pieces of Dum-Dums were eaten, there were 4 times as many Starbursts as Dum-Dums in the bowl. How many starbursts were there in the bowl?
104 pieces of starburst
Which ratios form a Proportion.
A) 3/4 and 6/12
B) 4/5 and 12/20
c) 2/3 and 4/6
A) No
B) No
C) Yes
On the first visit to the veterinarian's office, Cora's Kitten weighed 550 grams. On the second visit, the kitten had gained 350 grams. on the third visit, the kitten had gained another 300 grams. What is the percent increase since the first visit in the kitten's weight rounded to the nearest percent?
118%
Juleesa took out a 4-year loan to buy a car at a 4% simple interest rate. If she has to pay $240 interest, how much principal did she borrow?
She borrowed $1,500.
Dagne measures and finds that she can do a vertical jump that is 27.5% of her height. if Dagne can jump 13.2 inches, how tall is she?
48 inches.
Joel made egg sandwiches and tuna sandwiches in the ratio 2 : 3. He then made 15 more tuna sandwiches and the ratio changed to 1 : 3. How many sandwiches did Joel make in all?
Joel made 40 sandwiches in all.
Which is the better deal : Paying $42.67 for 7 show tickets or paying $63.18 for 9 show tickets?
Jackson received request for 150 tickets for his art show. the number of request was about 120% of the number of tickets he had. How many tickets did Jackson have?
Jackson had 125 tickets
Avnit, sells a car for $18,450 and gets $830.25 in commission. Find the percent of his commission on the sale of the car he sold.
He earns 4.5% commission.
Kevin wants to buy a bike that is discounted by 27%. The Sale price is $452.60. What was the original price of the bike?
Kylie and Chen have 69 stickers. Kylie and Olivia have 95 stickers. The ratio of the number of stickers Olivia has to the number of stickers Chen has is 5 : 3. How many stickers does Kylie have?
Kylie has 30 stickers.
Approximately 6.7 inches
Since the sanctuary was established, the estimated population of America robins in the area has increased from 86 to 102. Describe the percent change in the estimated population of American robins. Round the answer to the nearest whole percent.
0.831%
The directions on a sewing pattern say to cut an extra 15% of fabric to account for error. Chloe needs 0.75 yard of fabric to make a skirt, so she cuts 0.1125 yard. Did Chole cut the correct amount of fabric? Why or Why not?
NO; Chole cut only the amount of extra fabric.
There were 100 children at a festival. After 36 of the boys left the festival and another 21 girls joined the festival, the ratio of the number of boys to the number of girls became 8 : 9. How many more boys than girls were originally at the festival?
There were 52 more boys than girls originally at the festival.
17 units 100 + 21 -36 =85
1 unit 85 / 17= 5
8 units 8 X 5= 40
9 units 9 X 5=45
40 + 36=76
45 -21=24
76-24= 52
Dustin takes one hour to drive 40 miles from home to work every morning. He spends 30 minutes driving on the highway, 20 minutes driving on city roads, and 10 minutes driving on country roads. If he drives at the same speed on the country roads and the city roads, and travels 3 miles on the country roads, what is his average speed in miles per hour on the highway?
His average speed on the highway is 62 miles per hour.
A store purchases products for $150 each. they then sell the products for $275 each. What percent of change is this?
83.3% increase.
Marlina and Hanza sell skateboards at different stores. Marlina earns 8% commission on all sales. Hanza, earns 9.5% commission on all sales. Last week Marlina's sales were $5,450, while Hanza's sales were $4,500. who earned more money in commission?
Marlina earned more in commission $436 to Hanza's $427.50
How old is Mr. Sellu's Daughters?
2 and 1 years