Answer:
7 feet below the surface
Step-by-step explanation:
Lets consider down direction=+ve(positive) and up direction= -ve (negative).
A scuba diver dives down 15 feet into the ocean, therefore, position of scuba diver would be +15 feet. (as we have considered down direction as positive)
He then swims 8 feet back up towards the surface,now, position of scuba diver would be -8 feet (as we have considered up direction as negative)
So, overall position = 15 - 8 = 7 feet.
Therefore, the position of the scuba diver relative to the surface = 7 feet below the surface.
Addition:<span> Add, Sum, Plus, Increase, Total
Subtraction: </span><span>Subtract, Minus, Less, Difference, Decrease, Take Away, Deduct
<span><span>
Multiplication: Multiply, Product, By, Times, Lots Of
</span></span><span><span>
Division: Divide, Quotient, Goes Into, How Many Times</span></span></span>
The answer would be B. You know B and Y are equal and AB and XY are equal, so you just need the last side included in the angle.
When integers have the same sign always add the integers, either both have negative sign or positive sign.
for example +5 + 3 = +8
and -5 - 3 = -8
but the answer will have the same sign as the numbers have like in the above example when both are positive answer is with positive sign and when both are with minus sign answer is with minus sign.
when integers have opposite signs, always find the difference between them or do subtraction but the answer is with sign of the greater value integer, for example
-5 + 3 = -2, the answer is with - sign because greater number is 5 and it is with - sign.
+5 - 3 = +2
now the answer is with + sign because 5 is with + sign.
The expression which shows the amount of money, in dollars Maddie spent on mailing letters in March is 3.7 +0.74 y.
Given Maddie mailed y letters in January. She mailed 3 times as many letters in February. In March she mailed 10 letters more than half of what she mailed in January and February.
Expression is combination of numbers, symbols, fraction, coefficients which are not found in equal to form.
Letters mailed in January=y
Letters mailed in February=3y
Letters mailed in March=10+(y+3y)/2
=10+2y
Amount of mailing of 1 letter=$0.37.
Amount of mailing of letters in March=0.37(10+2y)
=3.7+0.37*2y
=3.7+0.74y
Hence the expression which shows the amount of letters mailed in March is 3.7+0.74 y.
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