Answer:
72
Step-by-step explanation:
Stacy has 30 marbles
Let m= the number of marbles that mallory has
stacy has 1/2 m -6
30 = 1/2 m -6
Add 6 to each side
30+6 = 1/2m
36 = 1/2m
Multiply each side by 2
72 = m
Mallory has 72 marbles
Answer: 9
Step-by-step explanation: Here, we have the expression <em>4x - 7</em> and we want to evaluate the expression when <em>x</em> is equal to 4.
To evaluate an expression, we simply plug the value
of the variable into the expression and solve.
So here, since <em>x</em> is equal to 4, we have 4(4) - 7.
4(4) is equal to 16.
So we have 16 - 7 which is equal to 9.
So the value of our expression when <em>x</em> is equal to 4 is 9.
Answer:
D
Step-by-step explanation:
if something is multiplied by 1.025 it is increasing by 2.5 percent
Answer:
(-4,-1)
All you have to do to find it is subtract x by 5 and subtract y by 5. :)
The pattern is that you are dividing by 3.
Therefore, to work out the next three numbers, you need to divide the last number by 3.
So you'd do:
1/9 ÷ 3 = 1/27
1/27 ÷ 3 = 1/81
1/81 ÷ 3 = 1/243
Therefore, the next three numbers are 1/27, 1/81, and 1/243.
