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3 years ago

Select two ratios that are equivalent to 27:927:927, colon, 9.

Mathematics

2 answers:

kherson [118]3 years ago

8 0

Answer:

9:3 and 3:1

Step-by-step explanation:

Marysya12 [62]3 years ago

7 0

Answer:

9 : 3, 12 : 4, 54 : 18, 18 : 6 and so on

Step-by-step explanation:

Ratios equivalent to 27 : 9

Although, choices are not available to pick from, however, we can still find equivalent ratio to 27 : 9

27 : 9

= 27 / 9

= 3 / 1

= 3 : 1

Equivalent ratio

9 : 3

= 9 / 3

= 3 / 1

= 3 : 1

Another equivalent ratio is

12 : 4

= 12 / 4

= 3 / 1

= 3 : 1

Another equivalent ratio

54 : 18

= 54 / 18

= 3 / 1

= 3 : 1

Another equivalent ratio is

18 : 6

= 18 / 6

= 3 / 1

= 3 : 1

Therefore, equivalent ratio to 27 : 9 includes 9 : 3, 12 : 4, 54 : 18, 18 : 6 and so on

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- 5.8c + 4.2 - 3.1 + 1.4c − 5.8c + 4.2 − 3.1 + 1.4c

Cerrena [4.2K]

Answer:

-8.8c + 2.2 OR SOLVED c = 0.25

Step-by-step explanation:

Step 1: Combine like terms

- 5.8c + 4.2 - 3.1 + 1.4c − 5.8c + 4.2 − 3.1 + 1.4c

-8.8c + 2.2

Step 2: If needed solve for c

-8.8c + 2.2 - 2.2 = 0 - 2.2

-8.8c / -8.8 = -2.2 / -8.8

c = 0.25

Answer: -8.8c + 2.2 OR SOLVED c = 0.25

8 0

3 years ago

Read 2 more answers

Jose and Frank made 3 1/5 pounds of pasta. They ate 1 2/5 pounds for dinner. How much was left over?

Lyrx [107]

Hi there,

It is 1 4/5. In decimal it is 1.8. Hope it helps:-)

6 0

3 years ago

write the equation of the line that passes through (2, 4) and has a slope of –1 in point-slope form. x – 4 = –1(y – 2) x – 2 = –

Kobotan [32]

The point-slope form: $y-y_0=m(x-x_0)$

m = -1; (2; 4) $\to x_0=2;\ y_0=4$

subtitute

y - 2 = -1(x - 4)

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3 years ago

yo can someone pls help me with this i’ve been crying for the last hour bc i can’t figure it out and it’s due in 30 minutes. the

mr Goodwill [35]

9514 1404 393

Answer:

area: 524 cm²
perimeter: 124.8 cm

Step-by-step explanation:

The rectangle in the middle has a width equal to the radius of the semicircular ends, so (20 cm)/2 = 10 cm.

The semicircular ends, together, make a complete circle of radius 10 cm.

The area is the sum of the areas of the parts:

A = LW = (21 cm)(10 cm) = 210 cm² . . . . . . rectangle area

A = πr² = π(10 cm)² = 100π cm² ≈ 314 cm² . . . . . circle area

The total area is ...

210 cm² +314 cm² = 524 cm² . . . . area of the figure

The perimeter of the figure is the sum of the lengths of all of the edges. From the left, working clockwise, we have ...

P = (1/2 circle of diameter 20) + (rectangle top = 21) +(1/2 circle of diameter 20) +(circle radius = 10) +(rectangle bottom = 21) +(circle radius = 10)

The two 1/2 circles add to a whole circle with a circumference of ...

C = πd = (3.14)(20 cm) = 62.8 cm

Then the whole perimeter is ...

P = 62.8 cm + 21 cm + 10 cm + 21 cm + 10 cm = 124.8 cm

_____

Note that we have used 3.14 for pi. If you use a more exact value, your answers will be slightly different.

4 0

3 years ago

6cm 20cm 4cm surface area

Delvig [45]

6 x 20 x 4 = 480 cm
the surface area is 480 cm

8 0

3 years ago