Step-by-step explanation:
no calculator or Excel sheet ?
(4×(4 + 3)) - 3 = (4×7) - 3 = 28 - 3 = 25
((7 - 5) ÷ 1/2) × 2 = (2 ÷ 1/2) × 2 = (2 × 2) × 2 = 4×2 = 8
(5.4 + 3) × (6 - 2) = 8.4 × 4 = 33.6
(9 ÷ 3 + 6) × 3 = (3 + 6) × 3 = 9×3 = 27
(4 + 3.2) × ((9 - 2) + 2.5) = 7.2 × (7 + 2.5) = 7.2 × 9.5 = 68.4
remember 2 things :
1. first priority for the sequence of operations is defined by brackets. second priority are multiplication and division (both are on the same level, and you can do them either way). and only third priority is addition and subtraction (they come last, and if you keep the "-" signs with the numbers, you can do them also in any sequence among each other : a - b = -b + a).
2. when you divide by a fraction, then this is the same as multiplying with the upside-down version of that fraction.
a / 1/b = a × b/1 = a × b
Supplementary angles are two angles whose measures add up to equal 180°. Given that one of the angles is 41<span>°, can you figure out what the measure of the other angle is?
Hope this helps!
-refrac532</span>
Answer:
54? or 5.4 I not really sure but I tried my best
Answer: a + b = 40
because
=> a = 51
b = -11
=> a + b = 51 -11 =40
Step-by-step explanation: