Priyanti ate 150 raisins in five days. If she ate 7 more raisins each day than she did the previous day, how many raisins did she eat on

Question

Priyanti ate 150 raisins in five days. If she ate 7 more raisins each day than she did the previous day, how many raisins did she eat on
a. the third day?

b. the first day?

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Mít Mít 5 months 2021-09-02T07:32:50+00:00 2 Answers 5 views 0

Answers ( )

    0
    2021-09-02T07:33:58+00:00

    Answer:

    a. 30 b. 16

    Step-by-step explanation:

    n=number of days

    a1= raisins she at on 1st day

    d=increase per day

    n(a1+an)/2

    5(a1+a1+d(n-1))/2=150

    5(2a1+4d)=300

    d=7, 10a1+20(7)=300

    a1+14=30

    a1=16

    a. a1+2d 16+14=30 b. 16

    0
    2021-09-02T07:34:46+00:00

    Answer:

    this means she ate an average of 30 raisins each day

    so she ate 30 on the third day

    so the amount she ate each day is like this

    1. 16

    2. 23

    3. 30

    4. 37

    5. 44

    16 + 23 +30 +37 +44=150

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