All categories

3 years ago

Solve each system by substitution y=-4x + 5 y= -2x + 1

2 answers:

5 0

y=−4x+5;y=−2x+1Step: Solvey=−4x+5for y:Step: Substitute−4x+5foryiny=−2x+1:y=−2x+1−4x+5=−2x+1−4x+5+2x=−2x+1+2x(Add 2x to both sides)−2x+5=1−2x+5+−5=1+−5(Add -5 to both sides)−2x=−4−2x−2=−4−2(Divide both sides by -2)x=2Step: Substitute2forxiny=−4x+5:y=−4x+5y=(−4)(2)+5y=−3(Simplify both sides of the equation)

x=2 and y=−3

MrRa [10]3 years ago

4 0

[-2x+1=-4x+5] is the first step and isolate for x -2x+1=-4x+5: x+2 then you got y=-3 the answer will be x=2, y=-3

You might be interested in

Enter the fraction as a decimal and a percent

mash [69]

Answer:

Percent is 40%

the decimal is .40

Step-by-step explanation:

1/5 = 20%/.20

So if 1/5 is 20% 2/5 should just have 20% more resolving in 40% or .40

7 0

3 years ago

Anybody good in geometry!?

crimeas [40]

7th:

Y + 128° = 180° (Linear Pair)

Y = 180 - 128 = 52°

You're welcome...Please mark as brainliest 

au revoir madame

5 0

2 years ago

Read 2 more answers

74% of 19 year old males are atleast 172 pounds , what percent of the males are not atleast 172 pounds?

swat32

Answer:

The percentage of males are not at least 172 pounds

P(X⁻ ≥ 172) = 0.26

Step-by-step explanation:

Step(i):-

Given that 74% of 19 -year -old males are at least 172 pounds

Let 'X' be a random variable in a binomial distribution

P( X≥172) = 74% = 0.74

we have to find that the percentage of males are not at least 172 pounds

Step(ii):-

The probability of males are not at least 172 pounds

P(X⁻≥172) = 1- P( X≥172)

= 1- 0.74

= 0.26

Final answer:-

The percentage of males are not at least 172 pounds

P(X⁻ ≥ 172) = 0.26

7 0

2 years ago

Your best friend, who is on spring break in Europe, e-mailed you that the temperature in Paris today is . Use the formula F

kifflom [539]

Answer:

<h2> Assuming your friend said the temperature over there was 68 degrees Fahrenheit in degrees C it would be 20 °C</h2>

Step-by-step explanation:

The question is not complete, as the information, your best friend in Europe about the temperature over there is missing, nevertheless, we can proceed with this problem by plugging in an assumed temperature.

The expression for conversion from degrees F to degrees C is given as

T(°C) = (T(°F) - 32) × 5/9

Now say temperature your friend e-mailed you is 68 degrees Fahrenheit (you can as well plug in your own value)

T(°C) = (68°F - 32) × 5/9

T(°C) = (36) × 5/9

T(°C) = 180/9 = 20 °C

T(°C) = 20 °C

7 0

3 years ago

Find the area of this triangle..

DerKrebs [107]

Answer:

Step-by-step explanation:

$\frac{bh}{2} \\\frac{8\times 7.2 }{2} \\= 57.5/2\\Area = 28.8$

6 0

3 years ago