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vredina [299]
3 years ago
14

What is -1/2 + (3/4 x 4/9)

Mathematics
2 answers:
fredd [130]3 years ago
7 0

Answer:

-1/6

Step-by-step explanation:

Using the PEMDAS rule, we start with the equation in the parentheses (3/4 x 4/9). 3 X 4 is 12 and 4 X 9 is 36, so the answer is 12/36. You can simplify this to 1/3. -1/2 plus 1/3 can also be written as 1/3 - 1/2. Next you will want to set the denominators equal to each other. In this case, I'll set them both equal to 6.

3 x 2 is 6, and 1 x 2 is 2, turning 1/3 into 2/6.

2 x 3 is 6 and 1 x 3 is 3, turning 1/2 to 3/6.

2/6 - 3/6 equals -1/6

uranmaximum [27]3 years ago
5 0

Answer:

-\frac{1}{6}

Step-by-step explanation:

\frac{3}{4} *\frac{4}{9} =\frac{1}{3}

\frac{1}{3} -\frac{1}{2}=-\frac{1}{6}

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Graph A line goes through the point (6,–2) and has a slope of –3. What is the value of a if the point (a,7) lies on the line?
3241004551 [841]

Answer:

The value of a is 3

Step-by-step explanation:

First you have to make an equation based on the point and slope that you were given. The formula for this is y-(y cordinate of point)=slope(x-x cordinate of slope)

y--2=-3(x-6), which simplifies to y+2=-3(x-6)

In (a,7), 7 is the y coordinate. We have to plug 7 in for the y in our equation.

7+2=-3(x-6),

Combine like terms on the left side to get to 9=-3(x-6)

Multiply out on the left to get 9=-3x+18

Subtract 18 from the left side to get -9=-3x

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7 0
2 years ago
Pls help me I’ll give brainliest!
inysia [295]

Answer

5.96046448×10^16

Step-by-step explanation:

7 0
3 years ago
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What is the answer to x+4=6
sattari [20]

Answer:

x=2

Step-by-step explanation:

When solving an algebraic equation, you have to get x alone

you do this by doing the inverse of whatever is efecting x

in this case it is x+4 so you subtract 4 from x+4

x+4-4=x

but when doing something like this, you have to do the same thing to both sides

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4 0
3 years ago
In a box there are six envelopes each containing two cards. Three of the envelopes contain two red cards, two of them contain a
Sphinxa [80]

Answer:

\frac{2}{5}

Step-by-step explanation:

3 envelopes having 2 red card

2 envelopes having 1 red card and 1 black card

1 envelope having 2 black cards

We are given that . An envelope is selected at random and a card is withdrawn and found to be red.

So, No. of ways of envelope having red card = 3+2 = 5

No. of required ways of envelope having 1 red card and 1 black card = 2

So, probability of getting an envelope having 1 red card and 1 black card = \frac{2}{5}

Hence The chance the other card is black is \frac{2}{5}

5 0
3 years ago
What’s greater -5 or -9
densk [106]

Answer:

-5 is greater

Step-by-step explanation:

-9 is a lesser number than -5 on the number line, making -5 a greater number.

4 0
3 years ago
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