1. what is the value of x in the equation βx = 2 β 3x + 6?
8
4
β4
β8<...
Mathematics, 27.01.2020 06:31 sam10146
1. what is the value of x in the equation βx = 2 β 3x + 6?
8
4
β4
β8
2. the work of a student to solve the equation 2(3x β 4) = 8 + 2x + 4 is shown below:
step 1: 2(3x β 4) = 8 + 2x + 4
step 2: 5x β 6 = 12 + 2x
step 3: 5x β 2x = 12 + 6
step 4: 3x = 18
step 5: x = 6
in which step did the student first make an error and what is the correct step?
step 2; 6x β 6 = 2(6 + x + 2)
step 2; 6x β 8 = 12 + 2x
step 3; 5x β 2x = 12 β 6
step 3; 5x + 2x = 12 + 6
3. the steps below show the incomplete solution to find the value of m for the equation 4m β 2m + 4 = β1 + 13:
step 1: 4m β 2m + 4 = β1 + 13
step 2: 4m β 2m + 4 = 12
step 3: 2m + 4 = 12
which of these is most likely the next step?
2m = 3
2m = 8
2m = 16
2m = 18
Answers: 1
Mathematics, 21.06.2019 15:30
The local farm is advertising a special on fresh picked peaches. the farm charges $4.25 to pick your own peck of peaches and $3.50 for each additional peck you pick. write an equation for the total cost of peaches in terms of the number of pecks. deine your variables. how much does it cost to pick 3 pecks of peaches?
Answers: 3
Mathematics, 21.06.2019 16:30
A(t)=728(1+0.04)^t how much money did aditya originally invest
Answers: 1
Mathematics, 21.06.2019 21:00
If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?
Answers: 1
Mathematics, 22.06.2019 00:30
The value, v, of kalaniβs stock investments over a time period, x, can be determined using the equation v=750(0.80)^-x. what is the rate of increase or decrease associated with this account? 20% decrease 20% increase 25% decrease 25% increase
Answers: 1