Does anyone know #4?

Mathematics

1 answer:

Marta_Voda [28]3 years ago

7 0

The state should charge rain tax for businesses that cause most environmental damage due to runoff from their paved areas

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What is the solution to the system of equations? Use the substitution method. {y=−2x+5 {3x−4y=2 Enter your answer in the boxes.

Nataly_w [17]

1. You have the following equations:
<span>
y=−2x+5 (i)
3x−4y=2 (ii)

2. You must substitute the equation (i) into the equation (ii), as below:

</span>3x−4y=2
3x-4(−2x+5)=2
3x+8x-20=2
11x-20=2

3. Now, you must clear the variable "x":

11x=2+20
x=22/11
x=2

4. You have the value of "x", so you can find the value of "y". When you substitute x=2 into the equation (i), you obtain:

y=−2x+5
y=-2(2)+5
y=-4+5
y=1

5. Therefore, the answer is:

x=2
y=1

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4 years ago

One more thanfour times a number is thirteen what is the number

brilliants [131]

Answer:

Step-by-step explanation:

subtract 1 from 13 divide the number by 4

7 0

3 years ago

Can you help me with this ?

lubasha [3.4K]

Answer:
200 petals
Proportionality is 50

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3 years ago

The Eagle Ridge Contractors Association claims the average price of a home in their subdivision is $125,150 with a standard devi

jonny [76]

Answer:

The test value is z = -1.31.

Step-by-step explanation:

The Eagle Ridge Contractors Association claims the average price of a home in their subdivision is $125,150.

This means that the null hypothesis is that the mean is this value, that is:

$H_0: \mu = 125150$

The Eagle Ridge Home Owners Association is interested in knowing if the costs of homes for sale in this subdivision are actually lower than claimed.

This means that at the alternate hypotehsis we test that the mean is lower than that value, that is:

$H_a: \mu < 125150$