Question 1
carly and janiya put some money into their money boxes every week. the amount...
Mathematics, 27.10.2019 00:43, mohamedramadan
Question 1
carly and janiya put some money into their money boxes every week. the amounts of money (y), in dollars, in their money boxes after certain amounts of time (x), in weeks, are shown by the equations below:
carly
y = 60x + 40
janiya
y = 50x + 80
after how many weeks will carly and janiya have the same amount of money in their money boxes and what will that amount be?
5 weeks, $280
5 weeks, $340
4 weeks, $280
4 weeks, $340
question 2
a system of equations is shown below:
y = 8x β 2
y = 9x β 7
what is the solution to the system of equations?
(β5, 38)
(β5, β38)
(5, 38)
(5, β38)
question 3
two equations are given below:
m + 3n = 10
m = n β 2
what is the solution to the set of equations in the form (m, n)?
(1, 3)
(2, 4)
(0, 2)
(4, 6)
question 4
the work of a student to solve a set of equations is shown:
equation 1: m = 8 + 2n
equation 2: 3m = 4 + 4n
step 1:
β3(m) =
β3(8 + 2n)
[equation 1 is multiplied by β3.]
3m =
4 + 4n
[equation 2]
step 2:
β3m =
β24 β 6n
[equation 1 in step 1 is simplified.]
3m =
4 + 4n
[equation 2]
step 3:
β3m + 3m =
β24 β 6n + 4n
[equations in step 2 are added.]
step 4:
0 =
β24 β 2n
step 5:
n =
β12
in which step did the student first make an error?
step 4
step 3
step 2
step 1
question 5
a student is trying to solve the system of two equations given below:
equation p: y + z = 6
equation q: 8y + 7z = 1
which of the following is a possible step used in eliminating the y-term?
(y + z = 6) β
β8
(y + z = 6) β
7
(8y + 7z = 1) β
7
(8y + 7z = 1) β
8
question 6
line a is represented by the equation given below:
x + y = 4
what is most likely the equation for line b, so that the set of equations has infinitely many solutions?
4x + 4y = 4
4x + y = 4
2x + 2y = 8
x + y = 8
Answers: 2
Mathematics, 21.06.2019 17:30, rainbowsauxe
Is it true or false iβm trying to pass this test so i can leave school
Answers: 2
Mathematics, 21.06.2019 21:00, rjsimpson73
An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0
Answers: 1
Mathematics, 21.06.2019 21:30, jasminelynn135owmyj1
The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse
Answers: 1
Mathematics, 17.10.2019 13:20
History, 17.10.2019 13:20
History, 17.10.2019 13:20
Mathematics, 17.10.2019 13:20
Chemistry, 17.10.2019 13:20
Mathematics, 17.10.2019 13:20
Advanced Placement (AP), 17.10.2019 13:20