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3 years ago

Write an equivalent expression to(x+7)+3y

Mathematics

1 answer:

anyanavicka [17]3 years ago

3 0

Answer:

2x+14+6y

Step-by-step explanation:

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Solve the expression x + 3 = 7

Daniel [21]

Answer:

x=4

Step-by-step explanation:

think of the equation like this: you have to do the inverse(opposite) operations so for adding you would subtract it. So for the adding 3 you would subtract it from both sides of the equation and get X=4

6 0

4 years ago

Given the equation: y=6x + 2<br><br> What is the slope of the line?

Andrei [34K]

Answer:

Slope =6

Step-by-step explanation:

The given equation is in the form: y = mx + b

Here, m is the slope & b is y-intercept

y = 6x + 2

m = 6

4 0

2 years ago

14% of 60 million gallons is how many gallons?

vichka [17]

Answer:

840,000,0

Step-by-step explanation:

3 0

3 years ago

The sides of a triangle are of lengths 13, 14, 1nd 15. the altitude of the triangle meet at point h. if ad is the altitude to th

S_A_V [24]

$\left \{ {{y=2} \atop {x=2}} \right.$

6 0

4 years ago

A major car dealership has several stores in a big city. The owner wants to determine if there is a difference in the proportion

Gemiola [76]

Answer:

confidence interval = ( -0.38 , 0.08 )

Step-by-step explanation:

Given data :

n1 = 55 , n2 = 60 ,

Let P1 ( proportion of SUV sales at store A ) = 30 / 55 = 0.55

P2 ( sample proportion of SUV sales at store B ) = 42/60 = 0.70

The Z-value at 99% confidence Interval = 2.58

<u>Determine the 99% confidence interval for difference in proportion</u>

applying the formula below

( P1 - P2 ) ± Z ( $\sqrt{p1( 1-p1)/n1 + p2(1-p2)/n2}$

Input values above into equation

confidence interval = ( -0.38 , 0.08 )

5 0

3 years ago