Since -2 is less than or equal to -1 input it into the first equation.
-3•(-2)-4
6-4
2
the answer is 2
U need to use the distributive property ok? The u have to add or subtract the number on both sides bring it down and the you have to divide
Answer:
(-2,-1)
Step-by-step explanation:
Using the graph find the coordinates for A and B.
A (-4,2) and B is (0,-4)
Midpoint formula is (x1 + x2)/2 , (y1+y2)/2
x value of the midpoint= (-4+0)/2 = -2
y value of the midpoint= (2 + -4)/2 = -2/2= -1
Midpoint is (-2, -1)
Using a system of equations, it is found that there are 34 pop songs are on the playlist.
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the variables are:
- Variable x: Number of hip-hop songs.
- Variable y: Number of pop songs.
Brandon has a playlist with 83 hip-hop and pop songs, hence:
x + y = 83.
There are 15 more hip-hop songs than pop songs, hence:
x = 15 + y.
Replacing the second onto the first equation:
x + y = 83.
15 + y + y = 83.
2y = 68.
y = 34.
There are 34 pop songs are on the playlist.
More can be learned about a system of equations at brainly.com/question/24342899
De acordo com a disponibilidade da unidade, há apenas a seguinte dosagem: 1g/2mL - ou seja, uma grama de dipirona a cada 2mL
O enunciado está meio mal formulado, pois é dito que foram prescritos 500mg de dipirona e é essa quantidade de farmaco que a criança tem que tomar. Deseja-se saber quantos mL deverao ser administrados.
Fazendo a classica regra de 3, podemos chegar no volume desejado:
(atentar que 500mg = 0,5g)
g mL
1 --------- 2
0,5 --------- X
1 . X = 0,5 . 2
<h3>X = 1mL</h3>
