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Arte-miy333 [17]
2 years ago
14

-4(x+5)=-4x-20 one solution many aolution infinite solutions?

Mathematics
1 answer:
Dmitriy789 [7]2 years ago
6 0

Answer:

<h2>x=-10</h2>

Step-by-step explanation:

-40-20=4x-20 _ -40-20+20=4x _ x=-10

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Line p goes through points (-2,6) and (4,-3) what is the equation of line p ​
marin [14]

Answer:

hello : y =(-3/2)x+3

Step-by-step explanation:

Hello : let  A(-2,6)    B(4,-3)

the slope is :   (YB - YA)/(XB -XA)

(-3-6)/(4+2)  = -3/2

an equation is : y=ax+b     a is a slope

y = (-3/2)x +b

 

the line through point  (-2,6) :  6 = (-3/2)(-2)+b

b =3  

the equation is : y =(-3/2)x+3

5 0
3 years ago
Carnival M charges an entrance fee of $5.00 and $0.65 per ticket for the rides. Carnival P
MA_775_DIABLO [31]
25 tickets

I put the information into this equation 5+0.65x=10+0.45x

I solved the equation by first subtracting the 0.45x from both sides to get the variable on one side. I was left with 5+0.20x=10. Then I subtracted the 5 from both sides and got 0.20x=5. Finally I divided both sides by 0.20 to get the X by itself and got X=25
3 0
3 years ago
a local parts shop buys a machine that costs $500,000. its value depreciates exponentially each year by 10%. what is the machine
jeka94
Hello!

Answer:

$295.295

Explanation:

Of the statement, we have that the price of the machine decreased 10% every year exponentially, so in the first year it real value drops to 90% of the costs. For 5 years, It can be expressed and simplified by the following equation:

We can't use that the percent drop as a percent itself, so we are going to divide 90% by 100%, and it will give us an entire number.

\frac{90}{100}=0,9 \\ \\ Value=Costs.(0.9)^{years}


By substituting we have:

Value=500000.(0.9)^{5}

Value: $295.245


Have a nice day!



8 0
2 years ago
HELP !! a sandwich shop purchases a used pizza oven for $875. after 5 years, the oven will have to be discarded and replaced. wr
Sladkaya [172]
<h3>Answer: V = -175t + 875</h3>

==================================================

Explanation:

I'll use y in place of V for now. Also, I'll use x in place of t.

x = number of years

y = value of the oven

Initially, the oven's value is $875, so x = 0 and y = 875 pair up together. The point (0,875) is on the line.

The point (5, 0) is also on the line to indicate that x = 5 years later is when the value of the oven is y = 0 dollars.

We need to find the equation of the line through (0,875) and (5,0)

First we'll need the slope

m = (y2-y1)/(x2-x1)

m = (0-875)/(5-0)

m = -175

The negative slope means the oven is losing 175 dollars in value each year.

The y intercept is b = 875 as this is the initial value of the oven

Put together, y = mx+b turns into y = -175x+875

If we plugged x = 0 into this equation, we'd get y = 875

Similarly, plugging x = 5 into y = -175x+875 leads to y = 0. This helps check we have the right equation

Lastly, replace x with t and replace y with V to end up with V = -175t + 875 which is our final answer.

5 0
2 years ago
Need help with this question​
Y_Kistochka [10]

Now if the lemonade is 1.50 he can only buy two because the total amount is 8.30 so it will be 3.00 and the amount left will be 5.00 and you can only buy one cupcake so you will buy two lemonades one cupcake

3 0
3 years ago
Read 2 more answers
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