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3 years ago

5

Anyone know this kinda stru ggling, thank uu

2 answers:

Alexxx [7]3 years ago

5 0

Answer:

i tried but i dont know the awnser

Step-by-step explanation:

post it again someone will see it

blsea [12.9K]3 years ago

3 0

Answer:

Correct me if im wrong but im sure the answer is b

Step-by-step explanation:

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Suppose You want to but three loaves of bread that cost $1.50 each and a jar of grape jelly that costs $4.A jar of Peanut Butter

Cloud [144]

You want 3 loaves of bread, at $1.50 a piece and a jar of jelly, at $4. So set up the equation 3(1.5)+1(4). You don't want peanut butter so that's unnecessary information. Your total is $8.50, so subtract that from 10, you get 1.5. You will have $1.50 left over.

4 0

4 years ago

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A circular pool is 32 foot across.What is the area of the pool rounded to the nearest hundredth of a foot?___square feet.

liberstina [14]

Answer:

correct answer is 95

clear explanation is 86

7 0

3 years ago

In 2001, gold was priced at (0.5x + 300) dollars per ounce. Its price tripled in 2008 and then doubled in 2011. In 2016, its pri

zloy xaker [14]

Given:

Price of gold in 2001 = (0.5x+300)

Its price tripled in 2008 and then doubled in 2011. In 2016, its price dropped to $\dfrac{2}{3}$ of the price in 2011.

To find:

An expression for the price of gold per ounce in 2016.

Solution:

We have,

Price of gold in 2001 $= (0.5x+300)$

Its price tripled in 2008.

Price of gold in 2008 $= 3(0.5x+300)$

Then doubled in 2011.

Price of gold in 2011 $= 2\times 3(0.5x+300)$

In 2016, its price dropped to $\dfrac{2}{3}$ of the price in 2011.

Price of gold in 2016 $=\dfrac{2}{3}\times 2\times 3(0.5x+300)$

$=2\times 2(0.5x+300)$

$=4(0.5x+300)$

$=4(0.5x)+4(300)$

$=2x+1200$

Therefore, the required expression for the price of gold per ounce is (2x+1200).

8 0

3 years ago

Which can be the first step in finding the equation of the line that passes through the points 5,-4 and -1,8 in slope-intercept

zheka24 [161]

Step-by-step explanation:

First step:

Calculate a slope.

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept

We have the points (5, -4) and (-1, 8). Substitute:

$m=\dfrac{8-(-4)}{-1-5}=\dfrac{12}{-6}=-2$

Put the value of the slope and the coordinates of the point (5, -4) to the equation of a line:

$-4=-2(5)+b$

$-4=-10+b$ <em>add 10 to both sides</em>

$6=b\to b=6$

Finally:

$y=-2x+6$

8 0

4 years ago

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I need help with my algebra 2. I also want to know how to solve this.

Lisa [10]

Add 1 to both sides:

$\sqrt{x+3} = x+1$

In cases like this, we have to remember that a root is always positive, so we can square both sides only assuming that

$x+1 \geq 0 \iff x \geq -1$

Under this assumption, we square both sides and we have

$x+3 = (x+1)^2 \iff x+3 = x^2+2x+1 \iff x^2+x-2 = 0$

The solutions to this equation are

$x = -2,\ x=1$

But since we can only accept solutions greater than -1, we discard $x=-2$ and accept $x=1$ .

In fact, we have

$x=-2 \implies \sqrt{-2+3}-1=0\neq -2$

and

$x=1 \implies \sqrt{4}-1=1$

which is the only solution.

4 0

4 years ago