Answer:
8*-7= -56
Step-by-step explanation:
How I solved it in my head
8*6= 48
48+7= 56
If you multiply any number with a negative, the answer becomes a negative
9×10^-3 + 24×10^-6 : 12×10-3
9×10^-3 + 2×10-3
11×10^-3
Answer:
<u>4 minutes</u>
Step-by-step explanation:
40=1 min
40=2 min
40=3 min
40=<u>4</u> min
40x4 or 40+40+40+40 is <u>160</u>
<span>If Tanya’s three items (x) cost the same as Tony’s four items (y), 3x = 4y. Y is 2.25 less than x, so: 3x = 4x - 4 x 2.25. 3x = 4x - 9. 3x + 9 = 4x. 9 = x. Therefore, y = 9 - 2.25. x = 9 and y = 6.75. Three times 9 and four times 6.75 is 27. Tanya’s items cost $9 each and Tony’s cost $6.75.</span>
