Resposta: 30
Explicação passo a passo:
Dado o seguinte:
Preço para atingir a meta = $ 20
Penalidade por falta de alvo = $ 10
Se 80 tiros forem disparados e os participantes receberem $ 100.
Número de vezes que o participante atinge o alvo.
Deixe o número de erros = m
Deixe o número de acertos = h
h + m = 80 - - - - (1)
20h - 10m = 100 - - - (2)
h = 80 - m
Substitua h = 80 - m em (2)
20 (80 - m) - 10m = 100
1600 - 20m - 10m = 100
-30m = 100 - 1600
-30m = - 1500
m = 50
De (h = 80 - m)
h = 80 - 50
h = 30
Número de acertos = 30
O participante acerta o alvo 30 vezes
<span>A line graph is used to show a trend
over a period of time. It is plotted as a series of points,
which are then joined with straight lines. The ends of the line graph do not have to join to the axes.
</span><span>A scatter plot is a type of plot
or mathematical diagram using Cartesian coordinates to display values
for typically two variables.
The difference between a line graph and a scatter plot is that a</span><span> line graph presents continuous and linked data, while a scatter plot presents unlinked data.</span>
Answer:
12.5 feet
Step-by-step explanation:
He only needs 10/12 of a 15 foot long piece of wood. We need to find 10/12 of the length of the wood.
That is:
10/12 * 15 = 12.5 feet
He only needs 12.5 feet of the piece of wood.
Answer:
24
Step-by-step explanation:
12 divided by 1/2 = 24
Hope this helped! :)
Its a simultaneous equation:
lets make "x" the used games and "y" the new ones
4x + 2y = 84
6x + y = 78. (multiply this by 2 to cancel out y)
12x + 2y = 156
so now we subtract them:
12x - 4x = 156 - 84
x = 9
used games cost $9
new games cost 78 - 6(9) = $24
Janet has $120 but she already bought 3 NEW games so:
120 - 3(24) = $48 left
48/9 = how many used ones she can buy = 5. something
she can buy 5 used
