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3 years ago

The -3 plus x is equal to -y

Mathematics

1 answer:

Vladimir [108]3 years ago

6 0

Slope: -1
Y-Intercept: 3

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What is the slope of this table ?

jeka94

Answer:

Slope can be found using rise/run

so y2-y1/x2-x1

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3 years ago

A farmer sells 7.1 kilograms of apples and pears at the farmer's market. 4 5 of this weight is apples, and the rest is pears. Ho

zheka24 [161]

Answer:

2.6Kg

Step-by-step explanation:

Let the weight of apples be x and that of pears be y .

The farmer sold 7.1 kg of apples and pears .

4.5 of the 7.1kg is apples

That’s

x + y = 7.1kg

4.5kg + y = 7.1kg

Subtract 4.5kg from both sides

4.5kg - 4.5kg + y = 7.1kg - 4.5kg

y = 2.6 kg

The farmer sold 2.6kg of pears at the market

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3 years ago

How to rearrange equations in the form y=mx+c<br><br>y = mx + c

kipiarov [429]

Another way to rearrange this equation is mx+c=y

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4 years ago

Find the sum of the equation

stealth61 [152]

Answer:

$\frac{{y}^{2}+13y-6}{{(y-1)}^{2}(y+7)}$

Step-by-step explanation:

1) Rewrite ${y}^{2}-2y+1y$ in the form ${a}^{2}-2ab+{b}^{2}$ , where a = y and b = 1.

$\frac{y}{{y}^{2}-2(y)(1)+{1}^{2}}+\frac{6}{{y}^{2}+6y-7}$

2) Use Square of Difference: ${(a-b)}^{2}={a}^{2}-2ab+{b}^{2}$ .

$\frac{y}{{(y-1)}^{2}}+\frac{6}{{y}^{2}+6y-7}$

3) Factor ${y}^{2}+6y-7$ .

1 - Ask: Which two numbers add up to 6 and multiply to -7?

-1 and 7

2 - Rewrite the expression using the above.

$(y-1)(y-7)$

Outcome/Result: $\frac{y}{(y-1)^2} +\frac{6}{(y-1)(y+7)}$

4) Rewrite the expression with a common denominator.

$\frac{y(y+7)+6(y-1)}{{(y-1)}^{2}(y+7)}$

5) Expand.

$\frac{{y}^{2}+7y+6y-6}{{(y-1)}^{2}(y+7)}$

6) Collect like terms.

$\frac{{y}^{2}+(7y+6y)-6}{{(y-1)}^{2}(y+7)}$

7) Simplify ${y}^{2}+(7y+6y)-6y$ to ${y}^{2}+13y-6y$

$\frac{{y}^{2}+13y-6}{{(y-1)}^{2}(y+7)}$

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2 years ago

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3x - 5<br> 2x +<br> Find the perimeter

taurus [48]

110 cm hopes this helps

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3 years ago