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2 years ago

Evaluate the expression when x = -2/3 and y= 2/9 x-4y

Mathematics

1 answer:

Ratling [72]2 years ago

6 0

Answer:

-14/9

Step-by-step explanation:

We can plug -2/3 in for x and 2/9 in for y:

-2/3-4(2/9)

-2/3-8/9

We need the fractions to have the same denominator so we can convert -2/3 into -6/9

-6/9-8/9

-14/9

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Quantos segundos tem 80 anos?

lara [203]

Answer:

2,522,880,000 segundos.

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3 years ago

Please help if you can

schepotkina [342]

Step-by-step explanation:

sqrt of 81 is 9 so rational

Sqrt of 89 is irrational

Sqrt of 121 is 11 so rational

Sqrt of 131 is irrational.

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2 years ago

Question 1 of 3 NE A scale drawing of a fishing boat has a scale of 1 cmn to 2 meters. If the length of the fishing boat is 6 cm

bagirrra123 [75]

Answer:

12 meters

Step-by-step explanation:

Given

$Scale= 1cm:2m$

Required

Determine the measurement when the scale reads 6cm

Represent this scale with x;

Such that:

$Scale = 6cm:x$

Equate

$Scale= 1cm:2m$ and $Scale = 6cm:x$

$1cm:2m = 6cm:x$

Express as fraction

$\frac{1cm}{2m} = \frac{6cm}{x}$

Cross Multiply

$x * 1cm = 6cm * 2m$

$x * 1 = 6 * 2m$

$x = 6 * 2m$

$x = 12m$

3 0

3 years ago

Alicia bikes 25% of a 100-mi trip on the first day. she bikes of the remaining distance on the second day. on the third day, she

DochEvi [55]

First day: 25% × 100 = 25 ( miles)
Second day : the remaining distance is 100 - 25 = 75 ( milesl
Third day: 40% × 75 = 30
25 + 75 + 30 = 130 (miles)

5 0

3 years ago

P = <br> Ok ty please please

Mars2501 [29]

Answer:

p = -15

Step-by-step explanation:

-2 = (p+9)/3 multiply both sides by 3 to get rid of fraction

-6 = p + 9 subtract 9 from both sides

-15 = p

5 0

3 years ago