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denpristay [2]
3 years ago
7

Can anybody help me on this thanks

Mathematics
1 answer:
Kamila [148]3 years ago
5 0

Answer:

a) t=98

b) b=32

Step-by-step explanation:

a)  4t/7  -20=36r

     r=1

     4t/7-20=36

     \frac{4t-140}{7}=36

     4t-140=252

     4y=392

      t=98

b) 2k/5=b/2-12

k=10

20/5=b/2-12

4=\frac{b-24}{2}

8=b-24

b=32

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