3 years ago

Simplify the expression -2(y-1)+3(y+2)

Mathematics

2 answers:

romanna [79]3 years ago

6 0

Answer: y+8

Step-by-step explanation:

-2(y-1)+3(y+2)

-2y+2+3y+6

y+8

Elanso [62]3 years ago

5 0

Answer:

$- 2(y - 1) + 3(y + 2) \\ - 2y - 2 + 3y + 6 \\ - 2y + 3y - 2 + 6 \\ - y + 4$

Step-by-step explanation:

please mark me brainliest

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5x-6_< -5x +16 <br> solve

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Answer:

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Step-by-step explanation:

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2 years ago

Elizeabeth bought a necklace that has a mass of 35 grams which measure is equivlent to 35 grams

Reptile [31]

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3 years ago

If the value of y varies directly with x and y= -1 when x=3, find y if x=9

Zolol [24]

y = - 3

Since y varies directly as x then

y = kx ← ( k is the constant of variation )

to find k use y = - 1 when x = 3

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3 years ago

How much meters per second did the cyclist travel from 8 a.M. To 10 a.M? (*TIP: 2 hours = 7200 seconds, 2 km= 2000 m). Give the

Mice21 [21]

Answer:

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Step-by-step explanation:

We have that the speed formula is as follows:

v = d / t

In this case they tell us that the distance is 2 km the equivalent of 2000 meters and the time is 2 hours the equivalent of 7200 seconds, we replace and we are left with:

v = 2000/7200 = 0.28

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3 years ago

HEY PLEASE HELP. The student's savings box had accumulated 35 twenty and fifty cent coins in one month, in the total amount of 1

stira [4]

Answer: 11 and 24

Step-by-step explanation:

Given

There are 35- 50 cents and 20 cents coins

The total of them is 10.3 euros

Suppose no of 50 cents coins is x and 20 cents is y

so we can write

$\Rightarrow 0.5x+0.2y=10.3\quad \ldots(i)$

Also,

$\Rightarrow x+y=35\quad \ldots(ii)$

Solving (i) and (ii) we get

$x=11; y=24$

There are 11 fifty cent and 24 twenty cents coins

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3 years ago