Math7

posted by .

Yuki made cookies on Monday. Some friends came over and ate half the cookies on Tuesday. On wednesday,Yuki ate three cookies, and on Thursday, she took two cookies to school. By Friday, Yuki had seven cookies left. How many did she bake on Monday?

Please i need help

  • Math7 -

    x = number of cookies

    x - (1/2 x + 3 + 2) = 7
    x - (1/2 x + 5) = 7
    2/2 x - 1/2 x - 5 = 7
    1/2 x - 5 = 7
    1/2 x = 12
    multiply both side by 2
    x = 24

  • Math7 -

    Thank you!
    I did one exercise and could you please check it

    The temperature at 2:00 P.M was 19C. By midnight, it was -3C
    What is the difference in the temperatures?
    _____________=________
    I thing the answer is:
    (+19)-(+22)=-3
    Correct?

  • Math7 -

    Correct?

  • Math7 -

    How can a difference between 19 and - 3 be only 3 degrees?

  • Math7 -

    From 19C to -3C is 22 degrees difference

  • Math7 -

    Thank you!!

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. MATH

    three brothers try to divide some cookies. The oldest brother gets half of the cookies and half of a cookie. The middle brother gets half of the cookies that are left and half of a cookie. The youngest brother gets half of the cookies …
  2. Math

    Yuki made cookies on Monday. Some friends came over and ate half the cookies on Tuesday. on Wednesday, Yuki ate three cookies, and on Thursday, she took two cookies to school. By Friday, Yuki had seven cookies left. How many did she …
  3. math

    When 6-year old Melanie arrived home from school, she was the first to eat cookies from a freshly baked batch. When 8-year old Felipe arrived home, he ate twice as many cookies as Melanie had eaten. When 9-year old Hillary arrived …
  4. math

    Alex came home after school one day and found that his mother had left a plate of cookies. Alex ate 1/4 of the cookies. When his sister Bernice came home, she ate 1/3 of the remaining cookies, and when Carla came home, she ate 1/2 …
  5. Math

    Jill made some cookies. Jill gave 1/4 of her cookies to Bob. Then Jill gave 1/2 of the remaining cookies to Joe. At this point, Jill had 18 cookies left. How many cookies did Jill have at first?
  6. math

    three friends are sharing 36 cookies. jerry states that he wants 25% of the cookies, Gary wants 1/2 of the cookies and Terry wants 0.75 of the cookies. how many cookies does each person want?
  7. math

    Ms.Montoya class baked cookies for school festival.They sold three fifths of the cookies on Thursday and one fourth of the cookies on Friday.If there were 24 cookies left after Friday,how many cookies did Ms.Montoya baked?
  8. 5th grade math

    Edna baked cookies. She ate 1/5 of the cookies and gave 1/3 of the cookies to Patty. What fraction of Edna's cookies are left?
  9. Math

    Kerri's father bill was a baker. Out of his usual morning batch of cookies bill burned the first 2 dozen cookies. He gave half of what was left to Keri to take to school. He wrapped up half of the remaining cookies and have them to …
  10. Math

    When Alina was hungry she ate c cookies, which was 30% of all the cookies she had. How many cookies did she have in the beginning?

More Similar Questions