math check please

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Approximately 4 out of every 10 students at Sonia's college live on campus. The college has 3,000 students. 1. How many of them live on campus?

A 1,200 students

2. Write the proportion 21 is to 33 as 63 is to 99.

A. 21/33 =63/99

3. is this fraction proportional?
3/11=7/19

A. no

4. Find the best buy on pasta sauce ( 1 qt is 32 oz).
(A) 48 oz for $1.79
(B) 1 qt for $1.29
(C)1 qt 16 oz for $1.99
(D)45 oz for $1.59

my answer was was D if I rounded them off they would average to .04 D was smallest going 4 digits it was .0353

5.Find the rate 392ft./8sec.

A 49 ft/sec

6.Is this rate rates are equivalent?

48 U.S. dollars/ 64 Canadian Dollars = 72 U.S. dollars / 96 canadian dollars

A Yes

7. Solve for the unknown: 4/x =12/15

x = 5




all are correct.Good work.

1.A caterer made 150 sandwiches for 120 people. How many sandwiches are there for each person? A 1.25 or 1 1/4 sandwich/person

2.On the blueprint of Lauren's new office building, the scale is 3 in. equals 8 ft. What will be the actual length of Lauren's office if it measures 6 in. long on the blueprint?

a. 16ft.

3.Write 0.21 as a percent.

A. 21%

4. 1,155 is what percent of 210?

A. 550%


5. The electricity costs of a business increased from $18,000 one year to $19,000 the next. To the nearest whole percent, what was the rate of increase?

A. 6%

6. Rewrite the statement, using percent notation.

7. 13 out of 25 college students work at part-time jobs.

A. 52% of college students work a part- time jobs

8. Write 2 1/4 as a percent.

A. 225%

9. Write 20% as a fraction or a mixed number.

A. 1/5

10.A saleswoman is working on a 6% commission basis. If she wants to make $2,400 in one month, how much must she sell?

A. $40,000



a caterer made 150 sandwiches for 120 people. how many sandwiches are there for each person?

  • math check please -

    If $3,000.00 is deposited into an account paying 4% interest compounded annually (at the end of each year), how much money is in the account after 3 years? (Round to the nearest cent.)

  • math check please -

    3,360.00

  • math check please -

    could you show how you figured out the answer for how many students lived on campus

  • math check please -

    The electricity costs of a business decreased from $16,000 one year to $11,000 the next. To the nearest whole percent, what was the rate of decrease?

  • Math -

    $3,000 x 0.04= 120
    $3,000 + 120 = $3,120 is the answer.

  • math check please -

    Approximately 4 out of every 10 students at Sonia's college live on campus. The college has 3,000 students. How many of them live on campus?

  • math check please -

    20 is what percent of 210%

  • math check please -

    57/54 = c/18

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