-5g - 6 for g= -2
4
16
10
-13
write an algebraic expression for the sum of 3 coins and c coins
c+3
c/3
3c
c-3
what value of x is a solution to the equation x-2=16
14
18
21
12
z/-12=-5
7
-60
-17
60
estimate the solition of the equation x-8.1=5.3 to the nearest whole number
13
14
4
3
14=t-44=
-30
-58
30
58
-30=j+50=
80
20
-1,500
-80
5.8=z/2.2
127.6
0.37
3.7
12.73
simplfly the expression and explain each step
4(3x+2)-2
factor the expression completely
20b-16
sorry its a lot but I kinda need it :P
How about I do a few and you show where you get stuck?
-5g - 6 for g= -2
just plug in -2 for any g's:
-5(-2)-6 = 10-6 = 4
when you see sum, it means add. So,
sum of 3 and c is 3+c or c+3
20b-16
4(5b-4)
You must surely have some ideas on the rest. If not, you are in big trouble.
Answers to the quiz pls
No problem! I'll help you with each of the questions step by step.
1. For the expression -5g - 6 when g = -2:
-5g - 6 = -5(-2) - 6
= 10 - 6
= 4
So the answer is 4.
2. For the algebraic expression for the sum of 3 coins and c coins:
To find the sum of 3 coins and c coins, we simply add them together. Therefore, the answer is c + 3.
3. For the value of x that is a solution to the equation x - 2 = 16:
To find the value of x, we can isolate the variable by adding 2 to both sides of the equation:
x - 2 + 2 = 16 + 2
x = 18
So the answer is 18.
4. For the equation z/-12 = -5:
To solve for z, we can multiply both sides of the equation by -12:
z/-12 × -12 = -5 × -12
z = 60
So the answer is 60.
5. For estimating the solution of the equation x - 8.1 = 5.3 to the nearest whole number:
To estimate the solution, we can add 8.1 to both sides of the equation:
x - 8.1 + 8.1 = 5.3 + 8.1
x = 13.4 (rounded to one decimal place)
Since we need the nearest whole number, the answer is 13.
6. For the equation 14 = t - 44:
To solve for t, we can add 44 to both sides of the equation:
14 + 44 = t - 44 + 44
58 = t
So the answer is t = 58.
7. For the equation -30 = j + 50:
To solve for j, we can subtract 50 from both sides of the equation:
-30 - 50 = j + 50 - 50
-80 = j
So the answer is j = -80.
8. For the equation 5.8 = z/2.2:
To solve for z, we can multiply both sides of the equation by 2.2:
5.8 × 2.2 = z/2.2 × 2.2
12.76 = z
So the answer is z = 12.76, which can be rounded to 12.73 (to two decimal places).
9. For simplifying the expression 4(3x + 2) - 2:
To simplify this expression, we can use the distributive property:
4(3x + 2) - 2 = 12x + 8 - 2 = 12x + 6
So the simplified expression is 12x + 6.
10. For simplifying the expression 20b - 16:
This expression is already simplified. There are no common factors that can be factored out or like terms that can be combined.
I hope this helps! Let me know if you have any other questions.