#i need help

5 messages · Page 1 of 1 (latest)

acoustic lotus
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please help me

IMG_0251.png
merry carbonBOT
mellow barn
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i can only help on no. 5

mPQS + mSQR = mPQR
(4x - 12) + (x + 15) = 53
4x + x - 12 + 15 = 53
5x + 3 - 3 = 53 - 3
5x/5 = 50/5
x = 10

mPQS = 4(10) - 12
= 40 - 12
= 28

mSQR = (10) + 15
= 25

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no. 6

mABD = mCBD
57 = mBCD

mABC = mABD + mCBD
= 57 + 57
= 2(57)
= 114

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hope this help