Lindsey was solving a problem, her work is shown below:

3n−5=−8(6+5n)
Step 1: 3n−5=−48−40n
Step 2: 3n=−53−40n
Step 3: 43n=−53
Step 4: n=−1.233

On which step did Lindsey make a mistake?

Answer:

x = -4

Step-by-step explanation:

1=5(x+1)+16

1=(5)(x)+(5)(1)+16 (Distribute)

1=5x+5+16

1=(5x)+(5+16)(Combine Like Terms)

1=5x+21

5x+21=1

5x+21−21=1−21

5x=−20

5x/5=−20/5

x=−4

Answer:

value of x is -4

Step-by-step explanation:

All you need to do is replace f(x) for 1.

1 = 5(x+1) + 16

backwards solve;

1 = 5x+5 +16

1=5x+21

1-21=5x

-20=5x

x=-4

That's all.

If it asks you if x=1, then just plug in 1 where ever x is. f(x) is symbolic of y.

Answer:

(0, 2) or C

Step-by-step explanation:

The solution to the system of linear equations is (0,2). The correct option is C.

A finite set of equations for which common solutions are sought is referred to in mathematics as a set of simultaneous equations, often known as a system of equations or an equation system.

It is given that in a coordinate grid with 2 lines. The first line labelled f(x) passes through (-3, 3), (0,2), and (3, 1). The second line labelled g(x) passes through the points at (-3, 0) and (0, 2).

Plotting the two lines by using the points on the graph. After plotting the points there will be two lines that will intersect at the point ( 0, 2 ). Then the solution of the equation is ( 0,2).

Therefore, the solution to the system of linear equations is (0,2). The correct option is C.

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Answer:

Step-by-step explanation:

C

Answer:

B

Step-by-step explanation:

Answer:

4.5 feet

Step-by-step explanation:

Answer:

The numbers in bold are the blanks.

Step-by-step explanation:

7/5 + 3/8 = 56/40 + 15/40 = 71/40

Answer:

1 31/40 or

71/40

Step-by-step explanation:

7/5+3/8=56/40+15/40=71/40=1 31/40

Answer:

where's the problem at like the work sheet?

Answer:

66

Step-by-step explanation:

The rabbit is traveling 66 ft per second.

Answer:

MN = 2.8 units

Step-by-step explanation:

By the property of isosceles trapezoid,

1). Bases are parallel.

2). Base angles of an isosceles trapezoid are congruent.

2). Opposite sides of the congruent angles are congruent.

By third property,

Measure of side KL = Measure of side MN

2.8 = Measure of side MN

Another way to find the length of MN is,

Distance between M and N = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

MN = [tex]\sqrt{(3-1)^2+(0+2)^2}[/tex] = [tex]\sqrt{8}[/tex]

MN = 2.8 units

Therefore, MN = 2.8 will be the answer.

Answer:x

+

4

Explanation:

Product is the answer to a multiplication.

The multiplicative inverse is the same as the reciprocal.

(

5

x

+

20

)

×

1

5

=

5

x

+

20

5

=

x

+

4

Step-by-step explanation:

Answer:

x+4

Step-by-step explanation:

This is because the multiplicative inverse of 5 is the reciprocal, or 1/5. This is then multiplied (distribution) to (5x+20), simplifying to x+4.

Answer:

213mi^2

Step-by-step explanation:

Answer:

10.7 + 2 + 10.9 10.9 x 30.9 is 336.81

Step-by-step explanation:

BIG BRAIN POWER

Answer:

b

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

brainlest plz

Answer:

hey! i dont recommend putting that much points into one question, it lowers your point value meanig, you cant answer more questions than you usually can

Step-by-step explanation:

Answer: Since you know some of the answers you put wrong say what I did wrong was I didn’t put...(and say the correct answer but like in a way )

Step-by-step explanation:

Answer:

Yvonne should pick mixture B which has a lesser concentration of chili oil.

Step-by-step explanation:

Bob's soup concentration = 18 drops / 4 cups = 9 drops / 2 cups = 4.5 drops/cup

A. 18 / 2 = 9 drops/cup which is a greater concentration

B. 18 / 5 = 3.6 drops/cup which is a lesser concentration

C. 20/ 4 = 5 drops/cup which is a greater concentration

D. 22/ 4 = 5.5 drops/cup which is a greater concentration

Answer:

x = 25/9 or 2.777777778

Step-by-step explanation:

4(2-x) = 5x - 17

8 - 4x = 5x - 17

   +4x   +4x

8 = 9x - 17

+17      +17

25 = 9x

25/9 = x

x = 2.777777778 or 25/9

Answer:

Sale price of a sweat shirt is $15.30 and a soccer ball is $21.08.

Step-by-step explanation:

A). Usual price of a sweat shirt is = $18

Sale price of the sweat-shirt is 85% of the usual price.

Therefore, Sale price = 85% of $18

=

= $15.30

B). Usual price of a soccer ball is = $24.80

Sale price of the soccer ball is 85% of its usual price.

Therefore, Sale price = 85% of $24.80

=

= $21.08

Therefore, sale price of a sweat shirt is $15.30 and a soccer ball is $21.08.

heres the real answer hope it helps :)

Given:

Seven hot dogs and two hamburgers cost 14.50

Two hot dogs and seven hamburgers cost 17.00.

To find:

The cost of one hot dog and the cost of one hamburger.

Solution:

Let the cost of one hot dog be x and the cost of one hamburger be y.

According to the question,

[tex]7x+2y=14.50[/tex]       ...(i)

[tex]2x+7y=17.00[/tex]       ...(ii)

Multiply (i) by 7.

[tex]49x+14y=101.5[/tex]       ...(iii)

Multiply (ii) by 2.

[tex]4x+14y=34.00[/tex]       ...(iv)

Subtract (iv) from (iii).

[tex]49x-4x=101.5-34[/tex]  

[tex]45x=67.5[/tex]  

Divide both sides by 45.

[tex]x=1.5[/tex]  

Put x=1.5 in (i).

[tex]7(1.5)+2y=14.50[/tex]

[tex]10.50+2y=14.50[/tex]

[tex]2y=14.50-10.50[/tex]

[tex]2y=4[/tex]

Divide both sides by 2.

[tex]y=2[/tex]

Therefore, the cost of one hot dog is 1.5 and the cost of one hamburger is 2.

Answer:

the other person is correct

Step-by-step explanation:

i put in the answers and it’s correct

Answer:

X = 85

Step-by-step explanation:

Answer:

i dont know but i need brainliest can you still do it plz

Step-by-step explanation:

Answer: 2.37x = 21.33

You bought 9 gallons

Step-by-step explanation:

The method that can be used to prove the triangles below are congruent is SSS

(side, side, side)

Option C is the correct answer.

It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

We have,

Two right triangles.

The hypotenuse of each triangle is equal

The base of each triangle is equal.

The height of the triangle is common to both triangles.

Now,

                   A

               /    |    \

             /      |       \

          /         |           \

        /           |               \

      B             D             C    

Triangle ABD is congruent with Triangle ADC

AB = AC (side)

BD = CD (side)

AD = AD (side)

Thus,

The method that can be used to prove the triangles below are congruent is SSS

(side, side, side)

Option C is the correct answer.

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Answer:

huh?

Step-by-step explanation:

^,÷&&÷&#^÷^#*#;#^#&

Answer:

what about him-

Step-by-step explanation:

ill answer in comments

Answer:

3 is not 4 is proportional

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

Given that:

Number of white balloon = 24

Number of maroon Ballon = 32

Number of orange Ballon = 16

To obtain the greatest number of arrangements ;

Find the greatest common factor of 24, 16 and 32

Factors of ;

24 = 1, 2, 4, 6, 8, 12, 24

16 = 1, 2, 4, 8, 16

32 = 1, 2, 4, 8, 16, 32

Hence, the greatest factor common to all three is : 8

Hence greatest number of arrangement that can be achieved is 8

The speed of car is 45.3 miles per hour.

Further explanation:

Speed is the rate at which an object changes position with respect to time.

Given

The formula for calculating speed is:

The speed of car is 45.3 miles per hour.

Keywords: Speed, distance

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