Question

Evaluate:
a)10+(-40)/8
b)-7*15/(-5)
c)-72/(-9)*5
d)20+(7)*8/(-2)
​

Answer 1

Answer:

a) 10+ (-40)/8

=10-5

=5

b) - 7*15/(-5)

= - 105/-5

=21

c)-72/(-9)*5

=-72/-45

=8/5

=1.6

d)20+7*8/(-2)

=20-28

= -8

Answer 2

Answer:

a=5

b=21

c=40

d=-8

Step-by-step explanation:

A

$10 + ( - 40) \div 8$

$10 - 40 \div 8$

$10 - 5$

$5$

B

$- 7 \times 15 \div ( - 5)$

$- 7 \times 15 \times \frac{1}{ - 5}$

$21$

c

$- 72 \div ( - 9) \times 5$

$- 72 \times \frac{1}{ - 9} \times 5$

$40$

d

$20 + (7) \times 8 \div ( - 2)$

$20 + 7 \times 8 \times \frac{1}{ - 2}$

$20 - 28$

$- 8$