Solve using substitution.
X = -5
-3x + y = 19

Answers

Answer 1
y=4
i hope this helped you

Related Questions

Find the missing side of the triangle leave answer in simplist radical form

Answers

Answer: x = 3 √21

Step-by-step explanation:

you gotta use our good, old, trusty friend pythagorean theorem.

a^2 + b^2 = c^2

x^2 + 6^2 = 15^2

x^2 = 15^2 - 6^2

x^2 = 189

x = √189

x = √27 · 7

x = 3 √3 · 7

x = 3 √21

what is 8.1% of 252?

Answers

Answer:

20.412

Step by step explanation:

8.1% of 252 = 0.081 × 252 = 20.412

1 card holds 10 stickers, 59 stickers. How many cards are needed

Answers

The answer is

6 cards

10. What is the value of the expression
-8.5 x 4.72 ?

Answers

Answer:

-40.12

Step-by-step explanation:

PLEASE HELP!!!! WILL GIVE BRAINLIEST TO BEST ANSWER!

Refer to the graph to the right and follow the directions in parts​ (a) through​ (f)
(a) is a>1 or is 0 (b) Give the domain and range of f and the equation of the asymptote
(c) Sketch the graph of g(x)=-a^x
(d) Give the domain and range of g and the equation of the asymptote
(e) Sketch the graph of h(x)=a^-x
(f) Give the domain and range of h and the equation of the asymptote

Answers

Answer:brainless plz

Step-by-step explanation:

(a) Sketch the graph with equation y = f(x), showing the coordinates of the points where the ... Given that f(x) = e ... (b) Write down the range of f. ... Right-hand branch in quadrants 4 and 1.

Carlos tried to find a fraction equivalent to 2/3. Below is his work. Which
statement describes Carlos' error?
2/3=2/3 x 1/4=2/12




He should have divided by 1/4.
He incorrectly multiplied 2/3 and 1/4.
It is impossible to find a fraction equivalent to 2/3.
He did not multiply 2/3 by a fraction equal to 1.

Answers

Answer:

He did not multiply 2/3 by a fraction equal to 1.

Step-by-step explanation:

For example he could have multiplied 2/3 by 4/4

= 2*4/3*4 = 8/12,

Find the slope of the line that passes through (4, 11) and (7,4).​

Answers

Answer:

m=-7/3 I think thats the right answer

What is -7/12 + 3/8?

Answers

Answer:

oi

Step-by-step explanation:

If you get paid $23 per hour, how much money will you make in 12 hours?

Answers

$276 in 12 hours hopes this help 23x12=276

I need help I don’t understand this

Answers

Answer:

Step-by-step explanation:

lets say "a" for the empty line,

for small triangle; y^2 = 2^2 + x^2

right triangle; we say a for empty line, a^2= 6^2 + x^2

and big triangle covering both triangles, 8^2 = y^2 + a^2

lets add left sides and right sides in each;

x^2 + 4 + x^2 + 36 + y^2 + a^2 = y^2 + a^2 + 64 and we can delete same things for both sides

y^2 and a^2 can be deleted and 4+36 - 64

2(x^2)=24

x^2= 12

and x will be √12

so, y^2 = x^2 + 2^2 which means y^2 = 12+4 y=16

Please help ASAP it’s due tomorrow

Answers

Answer: b

Step-by-step explanation:

Answer:

A. The open circle pointing to the right

Step-by-step explanation:

Graph the linear equation

Answers

Answer:

look at my graph

Step-by-step explanation:

solve for y for the second one by subtracting 2 by boths sides --> y > x -2

Brian is going camping and. is making a tent from fabric. How much fabric will he need? 6 ft. 12.5 ft. 8.5 ft.​

Answers

Answer and explanation:

Depending on the type and size of tent you wish to make, an average tent should consume more than 12.5ft of fabric. You would require more than 10 yards of fabric to make a small tent that an adult human being can fit in.

1 yard = 3 ft

And so you would require about 30 ft of fabric to make your tent. Therefore the options listed may not be enough fabric to make a tent

Jane receive a $80 gift card for a coffee store .She used it and buying some coffee that cost $7.82 per pound after buying a coffee she had $33.08 left on her car at many pounds of coffee did she buy ​

Answers

Answer:

she bought 6 pounds of coffee

Step-by-step explanation:

80 minus 33.08=46.92

46.92÷7.82=6

so the answer is 6

A charity bingo game costs $2 per round and has a $13 entry fee for an adult. It costs $3 per round and a $10 entry fee for a child. For how many rounds of bingo are the costs the same for an adult and a child?
2
3
4
5

Answers

Answer:

B=3

Step-by-step explanation:

Use a graphing calculator and type in these toe equations

y=2x+13

y=3x+10

and the point they intersect will say (3,19) and the answer is 3

For 3 rounds of bingo, the costs will be the same for an adult and a child option second is correct.

What is linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

A charity bingo game costs $2 per round and has a $13 entry fee for an adult. It costs $3 per round and a $10 entry fee for a child.

Let's suppose, for x rounds of bingo, the costs will be the same for an adult and a child.

For x rounds, cost for adult:

= 2x + 13

For x rounds, cost for child:

= 3x + 10

2x + 13 = 3x + 10

x = 3

Thus, for 3 rounds of bingo, the costs will be the same for an adult and a child option second is correct.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ2

Annie and Emily are sisters. Emily’s age is 7 more than twice Annie's age, a. The sum of their ages is 45. Which equation represents this relationship?

Answers

Answer:

3x=38

Step-by-step explanation:

Given that,

Annie and Emily are sisters. Emily’s age is 7 more than twice Annie's age, a. The sum of their ages is 45.

Let Annie's age is x.

Emily's age = 7+2x

ATQ,

The sum of their ages is 45.

x+7+2x = 45

Taking like terms together,

x+2x = 45-7

3x=38

Hence, this is the relation between their ages.

The ratio of boys to girls at a winter dance is 5 to 6. If there
are 90 girls, how many boys are at the dance?
Select one:
150
75
60
108

Answers

Answer:

75

Step-by-step explanation:

if there were 5 boys to 6 girls then multiply the 6 by 15 to get 90 then multiply the 5 by 15 as well and you get 75 to 90.

Answer:

108

Step-by-step explanation:

first divide 5 into 90 wich equals 18

then add to 90 which equals 108

Rachel borrows $2,000 from her bank. At a simple interest rate of 3%, how much does she have to pay back in 5 years?

Answers

Answer:

$2060

Step-by-step explanation:

3% of 2000 = 60

2000+ 60 =2060

Answer:2300

Step-by-step explanation:

I need help with this pls

Answers

Answer:

Im looking for this answer to lol

Step-by-step explanation:

algebra help!!

Link them up together of wich one is wich.

wich one is an equasion?

wich one is an expression?

wich one is an identity?

wich one is a formula?

3x'2-2x+1

(a-b)'2=a'2-2ab+b'2

3x2-2x+1=4x-2

v=u+1
_ at'2
2​

Answers

Answer:

formula

v=u+1

expression

3x'2-2x+1

PLSSSSSS HELP MEE ASAP

Answers

Answer:

What's the question?

Step-by-step explanation:

Your struggling with

Can someone answer this

Answers

Answer:

Step-by-step explanation:

-11= p-9

P= 11-9

P=2

You've sold 101 rooms, 98 rooms, and 102 rooms over the past 3 days. You have 116 rooms available. What is your average occupancy for the past three nights?

Answers

Answer:

The average occupancy rate for the past three nights is of 86.49%.

Step-by-step explanation:

We want to find the average occupancy rate, as a percentage.

You've sold 101 rooms, 98 rooms, and 102 rooms over the past 3 days.

So the mean number of rooms sold during the past 3 days is given by:

[tex]A = \frac{101 + 98 + 102}{3} = \frac{301}{3} = 100.33[/tex]

Average rate:

[tex]R = \frac{100.33*100}{116} = 86.49[/tex]

The average occupancy rate for the past three nights is of 86.49%.

John and his family went out to eat at their favorite restaurant. The bill for the food was $65.00, and
they a left an 18% tip for the server. What was the total cost of their meal (including tip).

Answers

Answer:

$76.70 is the answer.

Step-by-step explanation:

18% of 65.00 is 11.70. I added 11.70 to $65.00, and got 76.70.

Answer:

76.7

Step-by-step explanation:

65 + 18% tip= 65 times 0.18 = 11.7 65 +11.7 = 76.7

Hope this helped have a good day

Question 1: Write each of the following percentages as fractions.
If possible, simplify each answer
(a) 3%
(b) 14%
(c) 66%
(d) 10%
(e) 17%
(f) 30%
(g)50%
(h) 25%
(i) 15%
(j) 29%
(k) 16%
(l) 44%
(m) 99%
(n) 85%
(0) 52%
(p) 80%
(q) 60%
(r) 20%
(s) 5%
(t)72%
(u) 98%
(v) 2%
(w) 88%
(x) 15%
Question 2: Write each of the following percentages as fractions.
If possible, simplify each answer.
(a)111%
(b) 130%
(c) 150%
(d) 110%
(e) 125%
(f) 165%

Answers

Answer:

1. 3%=3/10

2. 14%=7/50

3. 66%=33/50

4. 10%=1/10

5. 17%=17/100

6. 30%=3/10

7. 50%=1/2

Help me with this question id u can pls

Answers

Answer:

1. principal × rate× time. 250×.03×1

2. $7.50

3. $30.00

A study is run comparing HDL cholesterol levels between men who exercise regularly and those who do not. The data are shown below.

Generate a 95% confidence interval for the difference in mean HDL levels between men who exercise regularly and those who do not.

Answers

Answer:

Hello your question is incomplete attached below is the missing part of the question

Regular Exercise           N                             Mean                          Std Dev

Yes                                35                             48.5                                12.5

No                                  120                           56.9                                11.9

answer : ( -12.968, -3.832 )

Step-by-step explanation:

To generate a 95% confidence interval

first step :

Assume population variance is equal we will calculate the number of degrees of freedom

df = n1 + n2 - 2 = 35 + 120 -2 = 153

second step:

Given : critical value = 0.05 , df = 153

hence Tc = 1.976

assuming the population variance is equal calculate pooled std as ( attached below )

Sp = 12.036

third step :

calculate the standard error

Se = [tex]Sp\sqrt{\frac{1}{n1} +\frac{1}{n2} }[/tex]

n1 = 35

n2 = 120

Sp = 12.036

hence Se = 2.312

final step

Compute the 95% confidence interval = ( -12.968, -3.832 )

attached below is the detailed solution

Find all zeros of f(x) = x4 + 5x2 – 36 by completely factoring the polynomial.

f(x) = x4 + 5x2 – 36 = (x2 – 4) (x2 + 9) =

List the four zeros of the function.

Real zeros: +

Complex zeros:

Answers

Answer:

Real Zeros    x = ±4

Complex zeros :  x = ±3 i

Step-by-step explanation:

Explanation

f(x) = x⁴ + 5x² – 36

f(x) = x⁴ + 5x² – 36

    = (x²)² + 9 x² - 4 x² - 36

   = x² (x² + 9) - 4( x² +9)

   = (x² -4 ) (x² +9)

f(x) = x⁴ + 5x² – 36 = (x² -4 ) (x² +9)

(x² -4 ) (x² +9) = 0

⇒ x² -4  = 0 and x² +9 =0

⇒ x² -2² = 0  and  x² = -9

⇒ x = ±4   and   x = ±3 i

Real Zeros    x = ±4

Complex zeros :  x = ±3 i

A Jar contains n nickels and d dimes. There are 22 coins in the jar, and the total value of the coins is $1.55.
How many nickels and how many dimes are in the jar? (Hint: Nickels are worth $0.05 and dimes are worth
$0.10.)
There are
nickels and
dimes in the jar.

Answers

They is 9dime and 13 Nickels because 13 x5=65 and 9 x10=90 .So 0.65+ 0.90= 1.55.

One out of three adults has worked in the restaurant industry at some point during his or her life. In an office of 90 workers, how many of these people would you expect to have worked in the restaurant industry at some point

Answers

Answer:

30

Step-by-step explanation:

1/3 of 90 is 30.

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