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3 years ago

HELLO PLEASE HELP ME I WILL GIVE BRAINLIEST

Mathematics

1 answer:

Arturiano [62]3 years ago

6 0

I pretty sure it’s A

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Parte de Cálculo: En cada una de las siguientes proporciones, utilizar regla de tres para determinar el valor desconocido

sineoko [7]

Answer:

x = 4

x = 3

x = 10

x = 3

x = 16

x = 35

Step-by-step explanation:

$\frac{x}{5} :\frac{8}{10}$

x · 10 = 5 · 8

10x = 40

10x ÷ 10 = 40 ÷ 10

x = 4

$\frac{8}{12} :\frac{2}{x}$

x · 8 = 12 · 2

8x = 24

8x ÷ 8 = 24 ÷ 8

x = 3

$\frac{15}{3} :\frac{x}{2}$

x · 3 = 15 · 2

3x = 30

3x ÷ 3 = 30 ÷ 3

x = 10

$\frac{x}{6}:\frac{6}{12}$

x · 12 = 6 · 6

12x = 36

12x ÷ 12 = 36 ÷ 12

x = 3

$\frac{x}{8} :\frac{4}{2}$

x · 2 = 8 · 4

2x = 32

2x ÷ 2 = 32 ÷ 2

x = 16

$\frac{10}{2} :\frac{x}{7}$

x · 2 = 10 · 7

2x = 70

2x ÷ 2 = 70 ÷ 2

x = 35

5 0

3 years ago

I need help with 4, 5, and 6 and this is Geometry.

Natali5045456 [20]

Answer:

it is the 7th

Step-by-step explanation:

plz take my answer

8 0

3 years ago

Tim has some marbles.

snow_tiger [21]

Answer:

Let x = the number of marbles Tim has

Let 2x = the number of marbles Sue has

x + 2x + 15 = 63

3x = 48

x = 16 marbles

Step-by-step explanation:

3 0

2 years ago

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A 2 foot wide painting should be centered on a 14 foot wide wall. How many feet (x) should be on each side of the painting?

geniusboy [140]

Divide the length of the wall by 2 to find the center of the wall:14/2 = 7 feet

The center of the painting is 2/2 = 1 foot.

The edge of the wall would be the center of the wall minus the center of the painting:

7 - 1 = 6 feet.

There should be 6 feet on each side of the painting.

4 0

2 years ago

Find the surface area of this prism. Round to the nearest tenth. Help, please!!!

storchak [24]

Answer:

i dont no sorry about that

3 0

3 years ago