Guessing this is a combined work problem??? You forgot to post the question. I can solve for the time it takes them to complete the house together..
1/3 + 1/5 = 1/t
5/15 + 3/15 = 1/t
8/15 = 1/t
15/8 = t
1.875 hrs
Answer:
a. 32,2°C
b. 131 °F
c. -28,9°C
Step-by-step explanation:
We must consider the following formula:
(x-32) × 5/9 = y , where x= temperature in °F an y= temperature in °C
Then,
a) In the formula we replace x=90° F, and we have: y = (90-32)× 5/9 = 32,2 °C
b) In the formula we replace y=55° C, and we have: 55 = (x-32)× 5/9 ⇒ 55×9/5 =x-32 ⇒ x=(55×9/5)+32 = 131 °F
c) In the formula we replace y= -20° C and we have: -20 = (x-32)× 5/9 = -4°F
With 37 mangoes you can bake 12 fruit tarts, because you need 3 mangoes for each tarts and you'll use 
mangoes. The remaining mango is not enough for another tart.
On the other hand, in order to bake 12 tarts, you'll need 24 apples, because you need 2 apples per tart.
So, with 12 apples and 37 mangoes you can bake 12 tart, with one mango as leftover.
-4.8x3.2 , 4.32/-3 , -2 3/5 - (1 2/5), 2 1/4+(-1 2/5)
So basically if they’re numbered from left to right then it would be 1, 3, 4, 2.
Problem 1 has a solution of -15.36
Problem 2 has a solution of 0.85
Problem 3 has a solution of -1.44
Problem 4 has a solution of -1.2
In order -15.36 would be the least greatest, because it is the farthest from zero. Followed by -1.44, -1.2, and lastly 0.85.
