Solve the system: {-2(a-b)+16=3(b+7), 6a-(a-5)=-8-(b+1)

Answers

Answer 1

Answer:

a=−3 and b=1

Step-by-step explanation:


Related Questions

Please help! you will get 'Brainliest' if you do.

Answers

Answer:

D is correct, based on my understanding

Step-by-step explanation:

Please help me with this kahn assignment!
Thank you

Answers

Answer:

[tex]7^{8}[/tex]

Step-by-step explanation:

When you multiply exponential numbers with the same base number, you have to add the exponents. So add 2 and 6 because the numbers share 7 as base.

please give brainliest if it helped:)

how do you calculate ratios

Answers

Answer:

A link for a calculator that I use for ratios

Step-by-step explanation:

https://www.calculatorsoup.com/calculators/math/ratios.php

You build and sell toy cars for $36 each. So far, you have built 25 toy cars. How many more toy cars will you have to build and sell to earn $1,620?​

Answers

Answer:

45

Step-by-step explanation:

36 times 25 =900 from then keep adding 36 and count the times you add 36 and it comes out as 45 i believe tell me if I'm wrong

according to the graph, what is the approximate average rate of change in the radius of the circle as the area increases from 3 square feet to 7 square feet?​

Answers

Answer: the answer is 0.125 foot per square foot

Step-by-step explanation:

help me with this please

Answers

Answer:

1) E

2) D

3) G

4) I

Step-by-step explanation:

1)

P = 2(l + w)

P = 2(3a + 3 + 8a - 12)

P = 2(11a - 9)

P = 22a - 18

2)

P = 22a - 18

P = 22(3) - 18

P = 66 - 18

P = 48

3)

P = a + b + c

P = 3b + 7 + 7b - 2 + 7b - 2

P = 17b + 3

4)

P = 17b + 3

P = 17(6) + 3

P = 102 + 3

P = 105

Ben score is 56 out of 79 marks what is his score as a percentage

Answers

Answer:

71%, without rounding 70%

Step-by-step explanation

We know our total number of marks is 79 if we only get 56 out of 79 we take 56/ 79. You'll end up with a number of 0.7088. You will ALWAYS end up with a decimal point. Because its a percentage we move the decimal point over 2 spots making the number 070.88 the 0 in front of of the 70.88 gets removed so you're left with 70.88 so rounded it would be 71%. Hope this helps

Answer:

70.88% or 70.9%(if rounded off)

Step-by-step explanation:

1. 100 ÷ 79 = 1.2658227848

2. 1.2658227848 × 59 = 70.8860759494

3. 70.88 rounded off to the nearest tenths is 70.9

You can buy 3 apples at the Quick Market for $1.05. You can buy 5 apples at
Stop and Save for $2.25. Which place is the better buy (best money value)?

Show work please:)

Answers

Quick Marker is the better buy because 5 apples at Stop and Save is $11.25 and 5 apples at Quick Market is $5.25

what is the area of the figure below?​

Answers

Answer:

250

Step-by-step explanation:

You have to find the triangle area and the rectangle and then add them.

Rectangle - 10*20 = 200

Triangle - (10*10)/2 = 50

Area - 200 + 50 = 250

PLEASE HELP WILL GIVE BRAINIEST!!!

Answers

Answer:

c

Step-by-step explanation:

Identify slope (m) and y-intercept (b): 4y - 3x = 4*
1. m = 4/3 b = 4
2. m = 3/4 b = 1
3. m=-3 b = 4
4. m = 3/4 b = 4

Answers

Answer:

2.

Step-by-step explanation:

y = 3/4x +1

m = 3/4 b = 1

hope this helps

The answer is two. You have simplify the solution to get it to y=mx+b form

De dónde se obtienen los datos generales complementarios que se utilizan para calcular la razones de actividad

Answers

Answer:

En el departamento de ventas.

Explicación paso a paso:

Los datos generales complementarios se pueden obtener del departamento de ventas donde están presentes los datos sobre ventas y nos ayudan a calcular los ratios de actividad. El índice de actividad se puede calcular dividiendo las ventas de la empresa por sus activos totales. Este índice de actividad indica la eficiencia de una empresa mediante el uso de sus activos disponibles para producir ventas. El índice de actividad también se denomina "Índice de gestión de activos". Los datos de ventas son necesarios para el índice de actividad que puede estar disponible en el departamento de ventas.

Kyleigh invested $2800 in an account paying an interest rate of 5 1/2% compounded annually Ariana invested $2800 in an account paying in interest rate of 5 3/4%compounded continuously after 12 years how much more money with Ariana having her account then Kylie to the nearest dollar?

Answers

Answer:

$259

Step-by-step explanation:

\text{Rate 1: }5\tfrac{1}{2}\%=5+1/2=

Rate 1: 5  

2

1

​  

%=5+1/2=

\,\,5.5\%\rightarrow 0.055

5.5%→0.055

\text{Rate 2: }5\tfrac{3}{4}\%=5+3/4=

Rate 2: 5  

4

3

​  

%=5+3/4=

\,\,5.75\%\rightarrow 0.0575

5.75%→0.0575

\text{Calculate Final Amount for Kylie}

Calculate Final Amount for Kylie

\overline{\phantom{\text{Calculate Final Amount for Kylie}}}

Calculate Final Amount for Kylie

​  

 

\text{Compounded Annually:}

Compounded Annually:

A=P(1+r)^t

A=P(1+r)  

t

 

P=2800\hspace{35px}r=0.055\hspace{35px}t=12

P=2800r=0.055t=12

Given values

A=2800(1+0.055)^{12}

A=2800(1+0.055)  

12

 

Plug in values

A=2800(1.055)^{12}

A=2800(1.055)  

12

 

Add

A=5323.381

A=5323.381

Use calculator

\text{Calculate Final Amount for Ariana}

Calculate Final Amount for Ariana

\overline{\phantom{\text{Calculate Final Amount for Ariana}}}

Calculate Final Amount for Ariana

 

\text{Compounded Continuously:}

Compounded Continuously:

A=Pe^{rt}

A=Pe  

rt

 

P=2800\hspace{35px}r=0.0575\hspace{35px}t=12

P=2800r=0.0575t=12

Given values

A=2800e^{0.0575(12)}

A=2800e  

0.0575(12)

 

Plug in

A=2800e^{0.69}

A=2800e  

0.69

 

Multiply

A=5582.4035

A=5582.4035

Use calculator (with e button)

\text{How much more money Ariana has:}

How much more money Ariana has:

5582.4035-5323.381

5582.4035−5323.381

259.0225

259.0225

Suppose you want to treat your office team to lattes at a local coffee shop. The drinks are $4.25 each,
plus you plan to buy a $3 scone for yourself. You also tip the barista 10% and have to pay 8.25% sales tax.
How many lattes can you afford if you have $60 to spend?

Answers

Answer: 10 lattes

lmk if this is incorrect

Step-by-step explanation:

sales tax: 60(.0825)=4.95

tip: 60(.10)=6

scone: 3

total excluding lattes: 4.95+6+3=13.95

total left to spend on lattes: 60-13.95=46.05

amount of lattes you can afford: 46.05/4.25=10.835294.....

Answer:

11 lattes and 1 scone

Step-by-step explanation:

11×4.25= 46.75+3.00= 49.75

49.75×8.25%= $53.85

10% of $53.85 is $5.38

53.85+5.38= $59.23

You will have .77 left

Someone help me please !!!

Answers

Yes it is a function

can any on help me plz

Answers

Answer:

C

Step-by-step explanation:

Answer:

x-0.25 is the answer for the above expression

factor this equation 75k^2+30k=-3

Answers

The answer is K=-1/5

You suppose to divide both sides by 3.

Move the constant to the left-hand side and change its sign Use a^2 + 2 ab+ b^2 = (a+b)^2 to factor the expression.

The only way an exponentiation can be 0 is when the base equals 0.

Move the constant to the right-hand side and change its sign.

Divide both sides of the equation by 5.

Answer: K=-1/5

Help please, I suck at maths

Answers

Answer:1, 5

Step-by-step explanation:

divide the expression to get your answer then divide the choices on the right. find the ones with the same answer.

Answer:

7,610/50

.761/.005

Step-by-step explanation:

Compare both expressions' sums and check them off.

Round 452.196 to the nearest tenth

Answers

I think the answer is 452,2, im sorry if its wrong

Write a positive or negative number to represent each change in the high temperature. Tuesday's high temperature was 4 degrees less than Monday's high temperature. *

Answers

Answer:

-4

Step-by-step explanation:

Brenda is selling magazines. Two subscriptions sell for $15.99. How much will 8 subscriptions cost?

Answers

Answer:63.96

Step-by-step explanation:

Explain in words how to use the formula c=πd

Answers

The formula c=pi*d can be used to find circumference

PLEASE HELP! NO LINKS OR I WILL REPORT!! I SUCK AT ALGEBRA

Answers

Answer:

-5 and 3

Step-by-step explanation:

(-(-2) +/- √(4- (4(1)(-15))) ÷ 2

(2 +/- √64 )÷ 2

(-2+8) ÷ 2 = 3

(-2 -8) ÷ 2 = -5

HELP ASAP!!!!! BRAINLIEST AWARD!!!!!!
Choose one of the theorems about chords of a circle and state it using your own words.
Create a problem about chords that uses the theorem that you explained. Solve the problem.

examples below:

Answers

1.The Chord Intersection Theorem:

If 2 chords of a circle are AB and CD and they intersect at E, then

AE * EB = CE * ED.

Problem.

Two Chords AB and CD intersect  at E.  If AE =  2cm , EB = 4 and CE = 2.5 cm, find the length of ED.

By the above theorem : 2 * 4 = 2.5 * ED

ED = (2 * 4) / 2.5

= 3.2 cm.

2.1. A given chord on a circle is perpendicular to a radius through its center, and it is at a distance less that the radius of the circle.

2. A circle of center O has a radius of 13 units. If a chord AB of 10 units is drawn at a distance, d, to the center of the circle, determine the value of d.

3. From question 2, the radius = 13 units, length of chord = 10 units and distance of chord to center of the circle is d.

A radius that meet the chord at center C, and divides it into two equal parts.

So that;

AC = CB = 5 units

Applying Pythagoras theorem to ΔOCB,

OC = d, CB = 5 units and OB = 13 units

=  +  

169 = 25 +  

169 - 25 =  

144 =  

⇒ d =  

      = 12 units

Therefore, the chord is at a distance of 12 units to the center of the circle

In a television commercial, the manufacturer of a toothpaste claims that more than four out of five dentists recommend the ingredients in its product. To test that claim, a consumer-protection group randomly sampled 400 dentists and asked each dentist whether they would recommend the ingredients in the manufacturer's toothpaste. 334 of the 400 dentists responded that they would recommend the ingredients in the manufacturer's toothpaste. Can the consumer-protection group conclude that the manufacturer's claim is true

Answers

Answer:

Following are the responses to the given question:

Step-by-step explanation:

n = 400

x = amount of displaying the reacts which would allow the fixing in the producing toothpaste = 334

Its value is more than [tex]\frac{4}{5}[/tex] dentists suggest the ingredient of the product.  

[tex]\to p > \frac{4}{5}\\\\\to p > 0.8\\\\[/tex]

Level of significance =[tex]\alpha =0.01[/tex]



Calculate the perimeter of this figure. Round your answer to 2 decimal places. Show all work and
include proper units. DONT FORGET TO FIND MISSING SIDE
6 ft
10 ft
6 ft
10 ft
TEIS PM

Answers

Answer:

32 ft

Step-by-step explanation:

that's a right answer

What is the volume...no links as the answer. Please help asap this is urgent.

Answers

let me just stop to think

Express each quotient in the simplest form. A. B. C. D.
What is the answer? There is nothing people have said to help

Answers

Is there an image you can show?

Find the value of x. 5x+33+17x+37

Answers

*X can not be found, only simplified or factored)

5x+33+17x+37

Add the x units

22x+33+37

Add the 33 and 37

22x + 70

Subtract 77 to the other side

Simplify: 22x = -70

Factor: 2(11x+35)

Sean solved a quadratic equation by factoring.
The problem he solved is given. Complete the
four blanks shown for one of his steps and the
solution

Answers

Step-by-step explanation:

Here are the steps required for Solving Quadratics by Factoring:

Step 1: Write the equation in the correct form. To be in the correct form, you must remove all parentheses from each side of the equation by distributing, combine all like terms, and finally set the equation equal to zero with the terms written in descending order.

Step 2: Use a factoring strategies to factor the problem.

Step 3: Use the Zero Product Property and set each factor containing a variable equal to zero.

Step 4: Solve each factor that was set equal to zero by getting the x on one side and the answer on the other side.

Example 1 – Solve: x2 + 16 = 10x

Step 1: Write the equation in the correct form. In this case, we need to set the equation equal to zero with the terms written in descending order.

Step 1

Step 2: Use a factoring strategies to factor the problem.

Step 2

Step 3: Use the Zero Product Property and set each factor containing a variable equal to zero.

Step 3

Step 4: Solve each factor that was set equal to zero by getting the

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