1) -5g-6 for g = -2
2) Write an algebraic expression for the sum of 3 Coins and c Coins
3) What Value of x is a solution to the equation? x-2 = 16
4) use mental math to solve the equation. z/-12 = -5
5) estimate the solution of the equation x-8.1 = 5.3 to the nearest whole number
Solve the equation for 6-9
6) 14 = t-44
7) -30 = j+50
8) 2.8x = -9.24
9) 5.8 = z/2.2
Please tell us how you would like us to help you.
If you go to Connexus and you are on Lesson 5 Unit 5 the answers are-
1.A
2.A
3.B
4.D
5.A
6.D
7.D
8.C
9.D
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1) To solve the equation -5g - 6 = -2 for g = -2, we substitute -2 for g in the equation:
-5(-2) - 6 = -2
10 - 6 = -2
4 = -2
The equation is not true, which means g = -2 is not a solution to the equation.
2) The algebraic expression for the sum of 3 coins and c coins can be written as:
3 + c
This expression represents the total number of coins when you have 3 coins and add c more coins.
3) To find the value of x that is a solution to the equation x - 2 = 16, we isolate x by adding 2 to both sides of the equation:
x - 2 + 2 = 16 + 2
x = 18
So the value of x that is a solution to the equation is x = 18.
4) To mentally solve the equation z / -12 = -5, we can start by multiplying both sides of the equation by -12 to get rid of the fraction:
z = -5 * -12
z = 60
So the value of z that satisfies the equation is z = 60.
5) To estimate the solution of the equation x - 8.1 = 5.3 to the nearest whole number, we can add 8.1 to both sides of the equation to isolate x:
x = 5.3 + 8.1
x = 13.4
Rounding 13.4 to the nearest whole number gives us x ≈ 13.
Solve the equation for 6 - 9:
6 - 9 is not an equation, it is an expression. It represents the subtraction of 9 from 6. The result is:
6 - 9 = -3
6) To solve the equation 14 = t - 44, we can isolate t by adding 44 to both sides of the equation:
14 + 44 = t - 44 + 44
58 = t
So the value of t that satisfies the equation is t = 58.
7) To solve the equation -30 = j + 50, we can isolate j by subtracting 50 from both sides of the equation:
-30 - 50 = j + 50 - 50
-80 = j
So the value of j that satisfies the equation is j = -80.
8) To solve the equation 2.8x = -9.24, we can isolate x by dividing both sides of the equation by 2.8:
2.8x / 2.8 = -9.24 / 2.8
x = -3.3
So the value of x that satisfies the equation is x = -3.3.
9) To solve the equation 5.8 = z / 2.2, we can isolate z by multiplying both sides of the equation by 2.2:
5.8 * 2.2 = z / 2.2 * 2.2
12.76 = z
So the value of z that satisfies the equation is z = 12.76 (or approximately 12.76).