Answer: 5.2×103. = 5.2×1000. = 5200
Step-by-step explanation:
Answer:
x = 2.5
or
x = 
Step-by-step explanation:
18x + 6 + 4 = 55
18x + 10 = 55
18x = 55 - 10
18x = 45
x = 2.5
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Answer:
6 coins
Step-by-step explanation:
For every 5 coins Carmen recieves, she gives off 2 to her brother, leaving her with 3 coins, 3x3=9, 2x3=6
Answer:
The measures of the angles are 65° and 80°
Step-by-step explanation:
One of the angles is 35°
We know that the other two angles have a difference of 15°
With this knowledge we can write an equation.
2x symbolizes the two angles
+15 symbolizes the difference between the two angles
145 = 2x + 15
145 - 15 = 130
2x = 130
x = 65
65 is the size of one of the angles.
Next, we add 15 to 65 and we get 80
80 is our second angle
