12x-3y=-3 6x+y=1

Solving systems​ of equations

Answer:

Alice is incorrect, see below

Step-by-step explanation:

The 10th term is 4(10)+3=43

The 5th term is 4(5)+3=23

Therefore, Alice is incorrect because 23*2=46, and not 44.

Answer:

x = 3, T = 95°

Step-by-step explanation:

the sum of the interior angles of a four sided shape known as a quadrilateral is 360 degrees.

add all angles and equate to 360

95 + 75 + 30x + 5 + 30x + 5 = 360

collect like terms

180 + 60x = 360

subtract 180 on both sides

60x = 180

divide 60 on both sides

x = 3

the angle of T:

30x + 5

input x = 3

30(3) + 5 = 95 °

Answer:

Answers in description based on what you're looking for. Not sure if you meant solve, because combining like terms results in repeating number

Step-by-step explanation:

- Combining like terms would lead to:

21 = 9x

/9     /9

x = 2.333333 (Repeating 3)

- Or to solve:

16 + 4x = 5x + 5

     - 4x    - 4x

16 = x + 5

- 5        -5

11 = x

Step-by-step explanation:

525

15% of 3500

15/100 ×3500

0.15×3500

525

Answer:

The pattern is min-zero-max-zero-min, which is the pattern for a cosine function of the form y = acos(x) + k, but is reflected over the x-axis (so a < 0).

The amplitude is |a|, so a = –1 and |a| = 1.

The midline is exactly between the max and the min, y = (6 + 8)/2 = 7, so k = 7.

The equation is y = –cos(x) + 7.

Step-by-step explanation:

answer on edge 2022

The given graph equation of the function is; y = -1cos(x) + 7 where a = -1 and k = 7

The given points to be plotted are;

(0,6), (π/2,7), (π, 8), (3π/2, 7) and (2π, 6a)

Now, If we graph these points, it is noticed that the function is a cosine function. Since the function does not pass through the origin, it means that it will have a y-intercept equal to 6.

The general equation for a cosine function is;

y = acos(x) + k

The midline is exactly between the maximum and the minimum point and so it is;

y = (6 + 8)/2

y = 7, so k = 7.

a is the amplitude and since it is reflected over the x-axis, then it means that a = -1. Thus;

y = -1cos(x) + 7

Read more about cosine functions at; https://brainly.com/question/13158551

Answer:33

Step-by-step explanation:

54-12=42

42 divided by 2 is 21

21+12 is 33

Answer:

33

Step-by-step explanation:

54-12=42

42 divided by 2 is 21

21+12 is 33

Answer: It took her 8 hrs to get there.

Step-by-step explanation:

Answer:

she will be home at 5:45am the next day

Answer:

Wednesday 20 July  4:45 pm

Step-by-step explanation:

Key:

Flight = 8:45 am

Light last 20 Hour

Solution:

8:45 am to 11:45 am = 15 Hour

So Add 5 More hour = 4:45 pm

Therefore Amelia will be home on Wednesday 20 July 4:45 pm

Answer:

Around 8.5 hours.

Step-by-step explanation:

Answer:

The unknown number is -40

Step-by-step explanation:

Let x = the unknown number

x + 5 = -35

Subtract 5 from both sides

x = -40

I hope this helped and please mark me as brainliest!

A system of equation is the set of equation in which the finite set of equation is present for which the common solution is sought.

The solution of the equation is (0,8)

A system of equation is the set of equation in which the finite set of equation is present for which the common solution is sought.

Given information-

The first equitation given in the problem is,

[tex]-5x+5y = 40[/tex]

Divide both side of the above equation with 5 as,

[tex]\dfrac{(-5x+5y )}{5}= \dfrac{40}{5}\\-x+y=8\\y=8+x[/tex]          .......1

Let the above equation as equitation 1.

The first equitation given in the problem is,

[tex]4x+ 3y = 24[/tex]

Put the value of y form the equation 1 in the above equation as,

[tex]\begin{aligned}4x+ 3(x+8) &= 24\\4x+ 3x+24 &= 24\\4x+ 3x &= 24-24\\7x&=0\\x&=0\\\end[/tex]

Put the value of x in the equation one as,

[tex]y=8+0\\y=8[/tex]          

Thus the solution of the equation is (0,8)

Learn more about the system of equations here;

https://brainly.com/question/13729904

Answer:

2. 2/3

3. 8

4. 6 3/4

5. 6 2/3

6. 3 1/2

7. 2 2/5

8. 6

9. 2 7/10

Step-by-step explanation:

Please find step-by-step explanation in my attached workings.  Hope this helps.

Answer:

Step-by-step explanation:

Missing value looks the same, but it's 0.7 ft. longer than 2 ft.

Your answer is 2.7 (C).

Answer:

x = 2.5 ft.  (first option)

Step-by-step explanation:

Apply Thales' Theorem

[tex]\frac{DC}{EB} =\frac{AC}{AB}[/tex]

[tex]EB=x[/tex]

[tex]\frac{10}{x} =\frac{8}{2}[/tex]

[tex]x=\frac{(10)(2)}{8} =\frac{20}{8}[/tex]

[tex]x=2.5[/tex]

Hope this helps

Answer:

Pretty sure you are correct.

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

the y-intercept is where the line crosses on the y axis

the line crosses 4 on the y axis so that is your answer

Answer:

D

Step-by-step explanation:

Multiply the 5 in to get 5x + 15 = 5x + 3

You can now see that no value for x will satisfy the equation.

Answer:

x = 8*root3

y = 16

Step-by-step explanation:

You can use tangent and cosine of 60° to find x and y, BUT THERE'S A SHORTCUT. You pointed out that its a 30°-60°-90° triangle. That is a special right triangle. Here's the shortcut:

the longest side (hypotenuse) is double the shortest side. We have an 8 on the shortest side, so the hypotenuse (longest side) is 16. This ALWAYS works for 30°-60°-90° triangles!

Another shortcut:

The longer leg is the shorter leg × root3.

This ALWAYS works on 30°-60°-90° triangles.

So on your triangle, the short side is 8, that means the longer leg is 8×root3.

ta-daaaa!

Answer:

l = P/2  -w

Step-by-step explanation:

P=2(l+w)

Divide each side by 2

P/2 = 2(l+w)/2

P/2 = l+w

Subtract w from each side

P/2 -w = l+w-w

P/2 -w =l

Answer:

i would say about $1.85

Step-by-step explanation:

There are 16 cups in one gallon and so you at 16+16 and you get 32 so you devide 59.20 by 32 and you get your answer. 1.85

Answer:

c = 9

Explanation:

given: f(x)=3x-7

if f(c) =20

To solve this replace x with c and then y is 20.

Solve:

3c - 7 = 20

3c = 27

c = 27 ÷ 3

c = 9

Answer:  C = 9

Step-by-step explanation:

hope this helps

Answer:

x ≈ 36.9°

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos x = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{AB}{BC}[/tex] = [tex]\frac{12}{15}[/tex] , then

x = [tex]cos^{-1}[/tex] ( [tex]\frac{12}{15}[/tex] ) ≈ 36.9° ( to the nearest tenth )

Answer:

B

Step-by-step explanation:

The square in the lower left means the angle is 90

x + 68 + 90 = 180                All triangles have 180 degrees.

x + 158  = 180                      Subtract 158 from both sides

x = 180 - 158                       Combine

x = 22

Linear equation is the equation in which the highest power of the unknown variable is one.

The given equation the constant 2000 represents the base salary or the fixed salary of the salesman.

To find that what does 2000 represent in the given linear equation we need to know about the linear equation.

Linear equation is the equation in which the highest power of the unknown variable is one.

Given information-

Total sales by salesman each month is [tex]s[/tex] dollars.

The total money made by the salesman each month by selling goods of [tex]s[/tex] dollars given by,

[tex]S=2000+0.1s[/tex]

The above equation given in the problem is the linear equation. In this linear equation the salary of salesman depends on his sales.

The constant amount of $2000 is the fixed amount of the salesman.

The variable [tex]s[/tex] is the variable on which the salary of the salesman depends. Thus due to this variable the salary of the salesman changes.

Hence in the given equation the constant 2000 represents the base salary or the fixed salary of the salesman.

Learn more about the linear equation.

https://brainly.com/question/14323743

Answer:

The statement of the fundamental theorem of calculus shows the upper limit of the integral as exactly the variable of differentiation. Using the chain rule in combination with the fundamental theorem of calculus we may find derivatives of integrals for which one or the other limit of integration is a function of the variable of differentiation.

Step-by-step explanation:

Answer:

Your answer will be 7.

Step-by-step explanation:

[tex]\huge\fbox{Hi~there!}[/tex]

We are given an expression: 3a+1.

We are also given the value of a: 2.

All we should do in order to figure out the value of the expression is plug in the value of a:

[tex]\rm{3a+1[/tex]

[tex]\rm{3(2)+1[/tex]

[tex]\rm{6+1[/tex]

[tex]\rm{7[/tex] (Answer)

I hope you find it helpful.

Feel free to ask if you have any doubts.

[tex]\bf{-MistySparkles^**^*\star[/tex]

Mary delivers 32 newspapers to her customers in 25 minutes. These deliveries represent 64% of her customers. then the total number of customers Mary has is 50.

Given :

The unitary method can be used to determine the number of customers Mary has.

As per the given data, Mary delivers 32 newspapers to her customers in 25 minutes and these deliveries represent 64% of her customer than the total number of customers is given by:

= 50

Mary delivers 32 newspapers to her customers in 25 minutes. These deliveries represent 64% of her customers. then the total number of customers Mary has is 50.

For more information, refer to the link given below:

brainly.com/question/2096984

Answer: your answer would be C. 50 customers  Hope this helped :)

Step-by-step explanation:

Answer:

-2.5 degrees C every hour

Step-by-step explanation:

This is because it is the same rate as the rate at the top.

Besides using the word "every" before the singular forms of the words above, they can also be changed to their plural forms by adding "s" behind them. For example "morning" becomes "mornings".

Other examples related to the words above are:

See the link below for more about the Plural forms:

https://brainly.com/question/586494

Answer:

13.896 kg

Step-by-step explanation:

Hope this helps you!!!! :D