8.1y + 7y + 2 – 8.1y – 10.

Answers

Answer 1

Answer:

7y−8

hope this helps :)


Related Questions

© Solve the simultaneous equations
-3x + y= – 8
3x + 2y = – 13
X =?
y =?

Answers

Answer:

x=1/3

y=-7

Step-by-step explanation:

using the elimination method, you can add both equations vertically, to eliminate the x

-3x+y=-8

3x+2y=-13

3y=-21

y=-7

we then fix the value of y into the first equation

-3x+y=-8

-3x-7=-8

-3x=-8+7

-3x=-1

x=1/3

write 12 as a product of its prime factors ​

Answers

Answer:

the Prime Factors of 12 are: 2, 2, 3.

Step-by-step explanation:

Therefore 12 = 2 X 2 X 3.

Sam needs a web designer. Designer A is offering her services for an initial $550 in addition to $105 per hour. Designer B is offering her services for an initial $660 in addition to $50 per hour. When will the two designers charge the same amount of money?

The two designers will charge the same amount of money after
hours

Answers

After two hours the prices will meet a 760

$550+105=655 |655+105= 760

660+50= 710 |710+50= 760

They meet in the second hour so in the second hour they will charge the same.

What is 1.5^3 evaluated or to make it easier to understand if you don't know what 1.5^3 is then it means what is 1.5 to the power of 3 evaluated?

6TH GRADE MATH

Answers

Answer:

3.375

Step-by-step explanation:

3. Sandi is making curtains for her bedroom. She needs 58 feet of fabric. She has 14 yards of fabric. How many more yards of fabric does she need?​

Answers

Answer:

she needs 3 1/3 more yards

Step-by-step explanation:

There are 3 feet in a yard

14yards x 3feet = 42 feet

58 feet- 42 feet= 10 feet

10 divded by 3 is about 3.3

Answer: 6 yards

Step-by-step explanation:

1)    14 x 3 = 42

2)    58 - 42 = 16

3)    16 / 3 = 5.33333333....

4)     round up = 6

Someone help me I don’t understand !

Answers

Answer:

2. -8x - 6

3. 4.5x + 10 (I think, not quite sure)

4. 0.25 - 5x (I think, also not quite sure)

5. -8x - 5y + 5.5

Step-by-step explanation:

2. Distribute the -2 to all terms except -1.

-2(4x + 2.5) - 1

-8x - 5 -1

-8x - 6

5. Combine 6x and -14x (6 - 14 = -8).

6x - 5y - 14x + 5.5

-8x - 5y + 5.5

Find the measure of angle TUY

Answers

Answer:

120

Step-by-step explanation

Exterior angle theorem:

d = a + b

d = 70 + 50

d = 120

Answer: TUY: 120°

Step-by-step explanation:

Hello,

1. Recall that the sum of a triangle’s angles is 180°, regardless of the type of triangle.

2. Find TUS, that is, the angle for U.

U = 180°-(50°+70°)=60°

For TUY:

Knowing that U=60° and that the line above U is 180°:

180°-60°=120°

someone please help me ASAP!!!!!!! Show work pleaseeeee

Answers

Answer:

vv

Step-by-step explanation:

[tex]6^{2} +2^{2} =c^{2} \\36+4=c^{2} \\40=c^{2} \\\sqrt{40} =c\\c=6.32[/tex]

Answer:

Square root of 40, I don't know what the brace is

Step-by-step explanation:

To find side c, you have to use the Pythagorean theorem. A^2+B^2=C^2. In this case A and B are 6 and 2. This means the equation would be 6^2+2^2=C^2. Simplify this to get 36+4=C^2. Add 36 and 4 to get 40. 40=C^2. This would mean that it is square root of 40.

A custom t-shirt company charges a $200 setup fee and $5 per t-shirt. Write an equation that can be used to determine how many t-shirts must be produced so that the total cost per t-shirt is $5.33?

A. (200+5x)/x =5.33
B. (200/x) +x = 5.33
C (200) + 5/x = 5.33
200 + 5x = 5.33/x

Answers

A. (200+5x)/x =5.33 I think I don’t know

Answer:

its a

plz brainlest

Step-by-step explanation:

Write the equation of the graph in factored form. remember to include the y or f(x)

Answers

Answer:

y=(x+2)(x+7)

Step-by-step explanation:

Function f is defined by the equation f(x) = x2 1. What is f(2) ?​

Answers

Answer:

42

Step-by-step explanation:

So you basically replace the x with 2. So f(x) = x21, then it would change to f(2) = 2(21). Then you would just multiply 21 by 2 and you would get 42.

Hope this helps!

Answer:

f=x21=x2f(2)=4

Step-by-step explanation:

Describe and correct the error shown to the right that a student made when writing a recursive formula from an explicit formula. Picture below shows the explicit formula and the incorrect recursive formula.

Answers

Just kidding.

now help me for 100 points.

A figure has an area of 64 square units. Which describes the area of the figure after a dilation with a scale factor of 3/2?
A)96 square units
B)144 square units
C)112 square units
D)32 square units

Answers

I think your answer would be a)96 square units

differentiate with respect to x:
log(cosx +sinx)

Answers

I don’t understand this brother plzz explain it better

Braxton has money in a savings account. The equation B = 800(1+0.03)'.

can be used

to calculate the amount of money in dollars, B, Braxton has in his account after t years since

opening the account.

Pam also has money in a savings account. The equation P = 800(1 + 0,04) can be

used to calculate the amount of money in dollars, P, Pam has in her account after t years

since opening the account.

Choose from the drop down menus to correctly complete each sentence.

Braxton's initial investment Choose...

Pam's initial investment.

The interest on Braxton's account Choose...

the interest on Pam's account.

Answers

Answer:

a) Braxton's initial investment is equals to (=) Pam's initial investment.

b)The interest on Braxton's account is less than (< ) the interest on Pam's

   account.  

Step-by-step explanation:

Given - Braxton has money in a savings account. The equation

            B = [tex]800(1 + 0.03)^{t}[/tex] can be used to calculate the amount of money    

            in dollars, B, Braxton has in his account after t years since opening

             the account.  Pam also has money in a savings account. The  

            equation, P= [tex]800(1 + 0.04)^{t}[/tex]  can be used to calculate the  amount of  

             money in dollars, P, Pam has in her account after t years since  

              opening the account.      

To find - a) Braxton's initial investment ..........Pam's initial investment.

                b) The interest on Braxton's account .....the interest on Pam's

                    account.

Proof -

As given, Broxton equation is -  

                 Pam equation is -    

Now,

a.)

For initial investment , Put t = 0

⇒B = [tex]800(1 + 0.03)^{0} = 800(1) = 800[/tex]  

   P =  [tex]800(1 + 0.04)^{0} = 800(1) = 800[/tex]  

We can see that for  t = 0

Initial investment of Braxton = Initial investment of Pam

Braxton's Initial investment = Pam's initial investment.

b.)

For the interest,

As we have not given any time period for which the interest has to be find.  

So , let the time period , t = 5 years

Therefore,

B = [tex]800(1 + 0.03)^{5} = 800(1.03)^{5} = 800(1.159) = 927.42[/tex]  

P = [tex]800(1 + 0.04)^{5} = 800(1.04)^{5} = 800(1.217) = 973.32[/tex]

Now,

Interest on Braxton's account = 927.42 - 800 = 127.42 ≈ 127

Interest on Pam's account = 973.32 - 800 = 173.32 ≈ 173

∴ we get

The interest on Braxton's account is less than the interest on Pam's account.

tha co-efficient of correlation is independent of​

Answers

The coefficient of correlation is independent of change of scale and origin of the variable X and Y. Change of origin means some value has been added or subtracted in the observation. If we divide all observations with x then new mean =initial mean/x.

Answer:

change of scale and origin of the variable X and Y.

Write an equation to represent 'twice a number (x) is fifty"​

Answers

Answer:

2x=50

Step-by-step explanation:

Hi there,

Your question is "twice a number (x) is fifty"

Recall how a number is represented by x.

Twice a number would be represented as 2x.

Therefore, to represent that twice a number is equal to 50, that would result in the expression: [tex]2x=50[/tex]

If you're looking to solve this equation, it's often best to think about the "reverse" of the current equation.

Notice how 2 is multiplying the x.

To isolate x, divide that side by 2.

However, recall that whatever is done to one side of an equation must also be done to the other side of the equation. Therefore, you will need to divide both sides by 2.

[tex]2x=50[/tex]

[tex]\frac{2x}{2} = \frac{50}{2}[/tex]

[tex]x=25[/tex]

Equation: [tex]2x=50[/tex]

Solving for x: 25

Hope that helps!

Write the linear equation in slope-intercept form:
(-4 6); slope=-3/4

Answers

Answer:

Step-by-step explanation:

y-6 = -¾(x+4)

y-6 = -¾x -3

y = -¾x + 3

what is 85 in simplest radical form?

Answers

Answer:

=√85  is the simplified radical

Kayla drives 15 miles in 20 minutes. If she drove one hour in total at the same rate,
how far did she go?

Answers

Answer:

45 miles

Step-by-step explanation:

first divide miles/minutes: 15 / 20 = 0.75

then multiply: 0.75 x 60 = 45

Pleaseee helppp answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

2t+2u+2v+4w

Step-by-step explanation:

Add up all of the terms

w + 15 = 29
w=___ ?? HELP

Answers

Answer:

w=14

Step-by-step explanation:

29-15=14

Answer:

14

Step-by-step explanation:

29-15 =14.

The answer is 14

a. 2 - 4 x 6 + 8 + 2 =
b. 6 + 2 x 4 - 8 + 10 =

Answers

The answer would be

A.) ~-12~

because 2-24=-22 -22+8+2=-12  

B.)~16~

because 6+8-8+10 and -8+8=0 so 6+10=16

Hope this helps

Have a great day/night

Feel free to ask any questions

Can this be reduced?

Answers

This answer is 2/11
I used my brain lol !!!

To solve the inequality 4x < 8, you would divide both sides of the inequality by 4.

True
False

Answers

Answer:

True

Step-by-step explanation:

4x<8

divide

x<2

Need help on Number 6

Answers

Answer:

area of triangle=1/2 (base×height)=1/2 (7×11)=38.5cm²

How do I simplify fractions ?

Answers

Write down the factors for the numerator and the denominator.

Determine the largest factor that is common between the two.

Divide the numerator and denominator by the greatest common factor.

Write down the reduced fraction.

HELP PLEASE is this right

Answers

Answer:

YES!!!

Step-by-step explanation:

Determine the 10th term of the sequence –17, -13,-9, ...
A. 19
B. -53
C. 36
D. 53

Answers

Answer:

-53 (answer : B)

Step-by-step explanation:

hello :

this the arithmetic sequence because :

(-9)-(-13)=(-13)-(-17)= 4  (common difference)

the first term is : A1 = -17

the nth term of an arithmetic sequence is :

An= A1 +(n-1)d   ....a common difference is : d

the 10th term is : A10

A10= -17 +(10-1)(4) = -17-36 = -53 (answer : B)

Write an equation for the nth term of the geometric sequence 5,30,180,1080

Answers

Answer: [tex]a_{n}[/tex]=5*[tex]6^{n-1}[/tex]

Step-by-step explanation:

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