Haro has 17 model cars, 31 model trucks, and 9 model airplanes on the shelf in his room. His sister thought it would be funny to

Question

3 years ago

15

Haro has 17 model cars, 31 model trucks, and 9 model airplanes on the shelf in his room. His sister thought it would be funny to

hide all the red models. Now Haro only has 39 models on his shelf. Which number sentence could be used to find how many red models his sister hid?
A. (17 + 31 + 9) – r = 39
B. 17 + 31 + 9 + r = 39
C. (17 + 31 + 9) + r = 39
D. 39 + 17 + 31 + 9 = r

Mathematics

2 answers:

castortr0y [4] · Answer 1 · 2022-03-21T05:00:29+03:00

castortr0y [4]3 years ago

8 0

The answer would be A. (17+31+9)-r=39

xeze [42] · Answer 2 · 2022-03-21T07:10:58+03:00

xeze [42]3 years ago

8 0

The answer is A
(17+31+9)-r=39
57 - 18=39