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3 years ago

Cynthia rounds a number, x, to one decimal point.

Mathematics

1 answer:

Talja [164]3 years ago

6 0

Answer:

[6.26,6.29]U[6.31,6.34

Step-by-step explanation:

6.26

6.27

6.28

6.29

6.31

6.32

6.33

6.34

So in interval form [6.26,6.29]U[6.31,6.34]

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One number exceeds another number by 6. One fourth of the sum of the two numbers is two less than the smaller.

dolphi86 [110]

Answer:

7 and 13

Step-by-step explanation:

let the 2 numbers be x and y , x > y , then

x = y + 6 → (1)

$\frac{1}{4}$ (x + y) = y - 2 ( multiply both sides by 4 to clear the fraction )

x + y = 4y - 8 ( subtract 4y from both sides )

x - 3y = - 8 → (2)

Substitute x = y + 6 into (2)

y + 6 - 3y = - 8

- 2y + 6 = - 8 ( subtract 6 from both sides )

- 2y = - 14 ( divide both sides by - 2 )

y = 7

Substitute y = 7 into (1)

x = 7 + 6 = 13

The 2 numbers are 7 and 13

4 0

3 years ago

What are the 3 most important things you learned about evaluating functions

LenKa [72]

Replace, substitute, plug in given values

3 0

4 years ago

In 2016 there were about 64,500 cinema screens in a country. If about 29.9% of screens in the country were digital 3-D screens,

zhenek [66]

Answer:

Step-by-step explanation:

In 2016 there were about 64,500 cinema screens in a country.

If about 29.9% of screens in the country were digital 3-D screens, we would determine the approximate number of 3D screens by dividing the Percentage of 3D screens by the total percentage of 100 and multiplying by the total number of cinema screens. It becomes

29.9/ 100 × 64500 = 0.299 × 64500

= 19285.5

The number of 3D screens is approximately 19286

6 0

4 years ago

Can somebody help me? Preferably with working out if possible

Kamila [148]

Answer:

d = 9

Step-by-step explanation:

Given

1 = $\frac{1}{3}$ d - 2 ( multiply through by 3 to clear the fraction )