Answer:
a. y = -3
b. x = -3
c. z = - 1
d. y = -7
Step-by-step explanation:
a. 5y - 3 = - 18
5y = -18 +3
5y = -15
y = -15/5
y = - 3
b. -3x - 9 = 0
-3x = 9
x = 9/-3
x = -3
c. 4 + 3(z-8)= -23
4 + 3z-24 = -23
3z - 20 = -23
3z = -23 + 20
3z = -3
z = -3/3
z = - 1
d. 1 - 2(y-4) = 5
1 - 2y + 8 = 5
9 - 2y = 5
-2y = 14
y = 14/-2
y = -7
Answer:
the answer is
Step-by-step explanation:
1= A(3, 2) B (1, -1) C(4, -2)
2= A(3, 8) B(1, 5) C(4, 4)
3= A(3, -4) B(1, -7) C(4, -8)
4= A(7, 2) B(5, -1) C(8, -2)
5= A(-1, 2) B(-3, -1) C(0, -2)
Answer:
Step-by-step explanation:
There's 24 students so I would do 5 × 24 which equals 120 so 420 - 120 is 300. Then 2 × 24 is 48. Now 300-48 is 252. They would have $252 left.
Answer:
The number of bracelets with she start are 48.
Step-by-step explanation:
Given:
Julia was recently given 9 bracelets. She plans to give 1/3 of her bracelets. She will be left with 23.
Now, we need to find with how many did she start.
Let the bracelets with she start be 
.
She plans to give 
= 
.
According to question:
On solving the equation:
<em>Multiplying both sides by 3 we get:</em>
<em>Adding both sides by 27 and then dividing by 2 we get:</em>
Therefore, the number of bracelets with she start are 48.
Answer:
Option c
Step-by-step explanation:
The study is an observational study. An observational study is made when the researchers collect data based on what they see, hear or observe without any form of manipulation or treatment plan from the researchers. Thus, in this case, the study is an observational study because the study examines individuals in a sample, but does not try to influence the response variable/influence their responses.
