A variable needs to be eliminated to solve the system of equations below. Choose the
correct first step.
8x + 6y = 66
8x - 4y = -4

A. Add to eliminate y.
B. Subtract to eliminate x.
C. Subtract to eliminate y.
D. Add to eliminate x.

Answer:

f(3) = 30

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

f(x) = 3x² + 2x - 3

f(3) is x = 3

Step 2: Evaluate

Answer:

x=4y/5-2

Step-by-step explanation:

Add 4y to both sides.

−5x=10+4y

The equation is in standard form.

−5x=4y+10

Divide both sides by −5.

−5

−5x

​

=

−5

4y+10

​

Dividing by −5 undoes the multiplication by −5.

x= −5

4y+10

Divide 10+4y by −5.

x=− 5/4y

​

−2

The required intercepts of the given equation is x = -2 and y = -2.5.

Distance from the origin to points where a line crosses an axis is known as the x-intercept and the y-intercept, respectively.

Here,
Given the equation of the line,
-5x-4y=10

Now, in order to determine the intercepts of the equation put x = 0 and y = 0 individually,

So,
x = 0
-4y = 10
y = -2.5

Now, put y = 0
-5x = 10
x = -2

Thus, the required intercepts of the given equation is x = -2 and y = -2.5.

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Answer:

9 bags

Step-by-step explanation:

Weight each bag should be = 3/4 pound (0.75 pound)

Total weight of sunflower seeds available = 6.5 pounds

Number of packages made = 6.5/ 3/4

                                              = 8.66666666667

                                              = So 9 bags at the most

If you write 8, then  you wouldn't  be able to fit the other 0.5 pound and if you put 9, well you will have enough more space to put 6.5 pounds.

Hope this helps!!

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Answer:

11

Step-by-step explanation:

So if he already biked 25 miles we can subtract 80 and 25 which will get a total of 55. if we divided 55 miles to the rest of the 5 days he will have to bike 11 miles each day

Answer:

Slope: 2

Step-by-step explanation:

iffx=3x−4findf1x0

Step 1: Add -3x to both sides.

f2ix+−3x=−4df2in+3x+−3x

f2ix−3x=−4df2in

Step 2: Factor out variable x.

x(f2i−3)=−4df2in

Step 3: Divide both sides by f^2i-3.

x(f2i−3)

f2i−3

=

−4df2in

f2i−3

x=

−4df2in

f2i−3

Answer:

x=

−4df2in

f2i−3

Answer:

:)))))

Step-by-step explanation:

╰(*°▽°*)╯༼ つ ◕_◕ ༽つ^3^:-3(✿◡‿◡)（*＾-＾*）(´▽`ʃ♡ƪ)(●ˇ∀ˇ●)(❁´◡`❁)♪(^∇^*)( *︾▽︾)o((>ω< ))o

Answer:

NO,YES,NO

Step-by-step explanation:

Step-by-step explanation:

x=-4.854 or x=1.854

hope this helps

Answer:

C edge 2020

Step-by-step explanation:

i got it right on the practice.

Answer:

Step-by-step explanation:

let (x,y) be coordinates of P.

[tex]PM=\sqrt{(-5-x)^2+(3-y)^2} \\PN=\sqrt{(2-x)^2+(4-y)^2} \\\frac{PM}{PN} =\frac{\sqrt{(-5 -x)^2 +(3-y)^2} }{\sqrt{(2-x)^2+(4-y)^2 } } =\frac{3}{2}\\4[(-5-x)^2+(3-y)^2]=9[(2-x)^2+(4-y)^2]\\4[25+x^2+10x+9+y^2-6y]=9[4+x^2-4x+16+y^2-8y] \\4x^2+4y^2+40x-24y+100+36=9x^2+9y^2-36x-72y+36+144\\4x^2-9x^2+4y^2-9y^2+40x+36x-24y+72y+100+36-36-144=0\\-5x^2-5y^2+76x+48y-44=0\\5x^2+5y^2-76x-48y+44=0[/tex]

Answer:

BM=CM bc of the definition of midpoint

AB =AC bc of the def of an isosceles triangle

and angle B = angle D becasur corresponding parts

Step-by-step explanation:

Answer:

When m = 6, 5m - 4 = 26.

Step-by-step explanation:

[tex]f(x)=5m-4[/tex]

Substitute:

[tex]f(6)=5(6)-4[/tex]

Multiply:

[tex]f(6)= 30-4[/tex]

Subtract:

[tex]f(6)= 26[/tex]

When m = 6, 5m - 4 = 26.

Answer:

Today: Monday, 14 December 2020

Hour: 9.20 PM

____________________________

[tex] \tt \: 5m \: - 4 \\ \tt \: \: \: = 5(6) - 4 \\ \tt = 30 - 4 \\ \tt \: = 26[/tex]

[tex]{\pink{\boxed{\orange{\boxed{\blue{i \: hope \: this \: help}}}}}}[/tex]

Answer:

i cant see but yes ill comment the answer when i download the file

Step-by-step explanation:

Answer:

The answer is "y = 1/4x + 16

Step-by-step explanation:

Answer:

(D) Side-Angle-Side, SAS

Step-by-step explanation:

Answer:

2. 91/12 or 7+7/12

3. 3+14/27

4. 35 / 192

my answers were all wrong (idk how) the working isnt there, but these are right 100%, when you divide fractions you multiply by the reciprocal

Answer: 7 ,95/27 ,15/62

Step-by-step explanation:

2) 12/3 / 4/7

12/3 * 7/4

84/12

7

3) 19/6 / 9/10

19/6 * 10/9

190/54

95/27

4) 5/8 / 31/12

5/8 * 12/31

60/248

15/62

Answer:

Domain is <-4,+∞)

X >= -4

Step-by-step explanation:

Answer:

-3.6

Step-by-step explanation:

The general equation of a straight line formula is represented as y = mx + c, where m is the gradient or slope of the line and c is called the intercept on the y-axis.

The equation of the line in the question above is y= −3.6x + 59 ,

Therefore comparing both equations together,

y = mx + c = y = −3.6x + 59

m = -3.6

Therefore, the slope of the equation represent in this scenario is -3.6

Answer:

9c - 3d

Step-by-step explanation:

5c-6d+4c+3d

Gather the like terms,

5c + 4c - 6d + 3d

9c - 3d

Hope it helps!<3

Simplifying

5c + -6d + 4c + 3d = 0

Reorder the terms:

5c + 4c + -6d + 3d = 0

Combine like terms: 5c + 4c = 9c

9c + -6d + 3d = 0

Combine like terms: -6d + 3d = -3d

9c + -3d = 0

Solving

9c + -3d = 0

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Add '3d' to each side of the equation.

9c + -3d + 3d = 0 + 3d

Combine like terms: -3d + 3d = 0

9c + 0 = 0 + 3d

9c = 0 + 3d

Remove the zero:

9c = 3d

Your answer: 9c=3d

Answer:

The answer is 3 Hope this help :)

Step-by-step explanation:(6,7) (4,1)

[tex]\frac{y2-y1}{x2-x1}[/tex]

[tex]\frac{1-7}{4-6}[/tex]

[tex]\frac{-6}{-2}[/tex]

x=3

Answer:

1.4

Step-by-step explanation:

Answer:51.14

Step-by-step explanation:since its an isosceles triangle all interior angles are gonna be equal the exterior angle plus interior angle is will be kept equal to 360

2x+5+5x-3=360

7x+2=360

7x=358

x=51.14

The measure of each angle is 31, 31 and vertex angle is 118.

If a triangle side is created, the outside angle that results is equal to the product of the two opposite internal angles.

Given:

Base angle = (2x+ 5) and Vertex = (5x- 3)

So, We know that the exterior angle is equal to sum of opposite interior angle

5x- 3 = 2x+ 5 + 2x + 5

5x - 3= 4x + 10

x= 13

Thus, Each angle measure 2(13)+ 5 = 31 and

third angle = 180 - (5x- 3) = 180- 62 = 118

Hence, the measure of each angle is 31, 31 and vertex angle is 118.

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Answer:

it is c

Step-by-step explanation:

When Sarah buys a package of 500 jewelry to decorate four different pairs of jeans, the number of jewelry fur each pair is 125 jewelries.

It should be noted that Sarah buys a package of 500 jewelry to decorate 4 different pairs of jeans and it was stated that she uses the same number of Jewelry each pair of jeans.

Therefore, it should be noted that the number of jewelry that she will use for each pair of jeans will be:

= Number of jewelry / Number of jeans

= 500 / 4.

= 125

Therefore, when Sarah buys a package of 500 jewelry to decorate four different pairs of jeans, the number of jewelry fur each pair is 125 jewelries.

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Sarah buys a package of 500 jewelry to decorate 4 different pairs of jeans she uses the same number of Jewelry each pair of jeans how many jewelry well she use for each pair of jeans

Answer:

210

Step-by-step explanation:

Round the 208. 8 is closer to 10. so, it would ultimately round up to 210

Answer:

1 and 1/8

Use common denominators:

5/8 - 4/8

so the answer is the 4th one

Answer:1 1/8

Step-by-step explanation:

if Lakeisha has 3 5/8 yards of fabric and she needs just 2 1/2 yards for the dress we will subtract 3 5/8 - 2 1/2=

29/8 = 3 5/8                2 1/2=5/2 which can be written as 20/8 (we need to have common denominator)

29/8- 20/8=9/8 = 1 1/8

The heaviest package is 2 (7/8) heavier than the lightest package.

A dot plot is a simple form of data visualization that consists of data points plotted as dots on a graph with an x- and y-axis.

We have,

From the given dot plot,

we see that there is one gift that weighs 1/8 pounds which is the lightest package.

The weight of the lightest package is:

= 1/8 pounds

we see that there are 4 gifts that weigh 6/8 pounds for each gift which is the heaviest package.

The weight of the heaviest package is:

= 4 x 6/8

= 3 pounds

The difference between the weight of the heaviest package with the lightest package is:

= 3 - 1/8

= (24 - 1) / 8

= 23/8

= 2 (7 / 8) pounds

Thus the heaviest package is 2 (7/8) heavier than the lightest package.

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Answer:

left to right (-11, 1) up and down (3,-6)

Answer: According to my calculations the answer is 10.5 hours

Step-by-step explanation:

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