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3 years ago

in a bag of marbles 1/2 of the marbles have a star on them if 8 marbles have a Star how many total marbles are in the bag

Mathematics

2 answers:

Step2247 [10]3 years ago

8 0

Answer:

Step-by-step explanation:

8x1/2

8/1 x 1/2

8/2

The answer is 4

ra1l [238]3 years ago

5 0

Answer:

16 marbels are in the bag

Step-by-step explanation:

1/2 of 16 is 8 so 8 have stars

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Which point is not on the graph represented by y=x^2+2x-4

Illusion [34]

$(-6,20) \\
x=-6 \\ y=20 \\ \Downarrow \\
20 \stackrel{?}{=} (-6)^2+2 \times (-6)-4 \\
20 \stackrel{?}{=} 36-12-4 \\
20 \stackrel{?}{=} 20 \\
20 = 20 \\
\hbox{the point is on the graph}$

$(-4,4) \\
x=-4 \\ y=4 \\ \Downarrow \\
4 \stackrel{?}{=} (-4)^2+2 \times (-4)-4 \\
4 \stackrel{?}{=} 16-8-4 \\
4 \stackrel{?}{=} 4 \\
4 = 4 \\
\hbox{the point is on the graph}$

Both points are on the graph.

3 0

4 years ago

Please help me and fast

umka21 [38]

The answer is 17.3 :)

7 0

4 years ago

Calculate the slope of a line that passes through the points (3, -20) and (5, 8).

shtirl [24]

Answer:

Step-by-step explanation:

Use rise over run, (y2 - y1) / (x2 - x1)

Plug in the points:

(y2 - y1) / (x2 - x1)

(8 + 20) / (5 - 3)

28 / 2

= 14

So, the slope is 14.

5 0

3 years ago

Read 2 more answers

Un cuerpo de 180 kg se debe lanzar hacia una distancia de 25 m. ¿Qué valor tiene el trabajo que se realiza al lanzarlo?

dsp73

Answer:

45, 000 J o 45 KJ

Step-by-step explanation:

Recordemos que trabajo realizado = fuerza * distancia

En este caso, fuerza = peso del objeto

Por lo tanto, peso del objeto = 180 Kg * 10ms ^ 2 = 1800 N

Por eso;

Trabajo realizado = 1800 N * 25 m = 45, 000 J o 45 KJ

3 0

3 years ago

I really help with this ill mark u brainliest pls

erma4kov [3.2K]

Answer:

$m\angle XYW = (155 - 20x)\degree$

Step-by-step explanation:

$m\angle XYZ= m\angle XYW +m\angle WYZ\\\\150\degree = m\angle XYW +(20x-5)\degree \\\\150\degree - (20x-5)\degree = m\angle XYW \\\\(150 - 20x+5)\degree = m\angle XYW \\\\(155 - 20x)\degree = m\angle XYW \\\\m\angle XYW = (155 - 20x)\degree \\\\$

7 0

3 years ago

in a bag of marbles 1/2 of the marbles have a star on them if 8 marbles have a Star how many total marbles are in the bag​

in a bag of marbles 1/2 of the marbles have a star on them if 8 marbles have a Star how many total marbles are in the bag