Help in this as well

Mathematics

1 answer:

Charra [1.4K]3 years ago

6 0

Answer:

b 321 and 322

Step-by-step explanation:

because 321.5 is between 321 and 322

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Y=2x+1 x+y=7 pls help meeeeeeeee

Gala2k [10]

Answer:

$y=2,\:x=\frac{5}{2}$

Step-by-step explanation:

$\begin{bmatrix}x+1\cdot \:x+y=7\\ y=2\end{bmatrix}$

x+1· x+2=7

Simplify x+1· x+2: 2x+2x+1· x+2

Add similar elements: x+1· x=2x=2x+2

2x+2=7[ 2x+2=7 ]

Isolate x for 2x+2=7: x=52 2x+2=7

Subtract 2 from both sides

2x+2−2=7−2

Simplify

2x=5

Divide both sides by 2

2x2 =52 Simplify

5 0

3 years ago

Read 2 more answers

4. The Gold family sold their house for $450,000. They paid a realty

Rudiy27

Answer:

27,000

Step-by-step explanation:

$450,000 x 0.06= $27,000

0.06 is the 6% that you multiply by the total amount they earned to see how much they paid the realty company.

7 0

3 years ago

write the point-slope form of the equation of the line through the given points through (0,-1) and (3,-3)

love history [14]

$\text{Given that,}\\\\(x_1,y_1) = (0,-1) ~ \text{and}~ (x_2, y_2) = (3,-3)\\\\\text{Slope, m}= \dfrac{y_2 -y_1}{x_2 -x_1} = \dfrac{-3+1}{3-0} = -\dfrac 23\\\\\\\text{Point slope - form}\\\\y-y_1 = m(x-x_1)\\\\\implies y - (-1) = -\dfrac 23 (x -0)\\\\\implies y +1 = -\dfrac 23 x$