solve the system by substitution 2x + 5y = - 3 and y = - 1

Answers

Answer 1

Answer:

x = 1

y= -1

Step-by-step explanation:

Plug in for y

2x + (5)(-1) = -3

2x - 5 = -3

2x = - 3 + 5

2x = 2

x = 1


Related Questions

whats the answer here? Please tell!

Answers

y = a(x - p)² + q

a = -1, p = -3, q = -2

y = -(x + 3)² - 2

The product of , and the sum of a number and - 4 is less than or equal to 64.
What are all the possible values of the number? Show your work.

Answers

Answer:

6

Step-by-step explanation:

In 2011 a sweatshirt cost $20 and in 2012 the price increase to 25 what is the percent change

Answers

This would be a 25 % increase in price.

What is the difference between a wheel and a roller?

Answers

While a wheel might look like a roller, the key is the outside diameter. ... Despite this difference, rollers and wheels do have a few things in common: Depending on the application, rollers and wheels usually have cores or hubs made of steel, aluminum, hard urethane, or even bearings. :)

Simply the following
-2+3(1-4)-2​

Answers

Answer:

- 13

Step-by-step explanation:

Given

- 2 + 3(1 - 4) - 2 ← evaluate parenthesis

= - 2 + 3(- 3) - 2 ← perform multiplication

= - 2 - 9 - 2

= - 13

Step-by-step explanation:

solution

= -2+3(3)-2

=-2+3*3-2

= -2+9-2

=-11-2

= -9

plz besties can you help me
a) show that k lies between - 8 and 1 in the following inequality
[tex] {k}^{2} + 7k \leqslant 8[/tex]

Answers

Answer:

-8≤k≤1

Step-by-step explanation:

k²+7k-8≤0

(k+8)x(k-1)≤0

k1= -8

k2= 1

-8≤k≤1

Use an area model to multiply (x+5)^2. Write your answer as a sum.

Answers

Answer: (x-5)2 would be your final answer

Answer:

its prolly just (x+5)2

Step-by-step explanation:

taking the test rn for it

can someone give me the answer to this !

Answers

Answer:

9

Step-by-step explanation:

Answer:

there are nine teachers

Step-by-step explanation:

Subtract and simplify the expression. (14m + 3) − (34m + 15)

Answers

the answer to this is -20m -12 ( sorry if it's wrong )

What is the answer of R4 × 38 ​

Answers

Answer:

38r^4 ( I hope this was helpful) >;D

Which of the following situations are equal to 40%? Select all that apply.
A) 5 out of 20
B) 6 out of 15
C) 10 out of 25
D) 45 out of 90
E) 32 out of 80

Answers

B,C,E (hope that helps!)

Find u and v ....

I need help

Answers

U is up in top left v is in bottom left
U is on the top left have a good day

Write the fraction 3248 in simplest form.

Answers

Answer:

Step-by-step explanation:

ok so im not sure what the fraction is.... so i'll put all the choices

3/248= simplified

32/48= 2/3

324/8= 81/2

3248/1= 3248

Simplify by combining like terms and then FACTOR the expression -3+5y+5+3y

Answers

Answer:

7y+2

Step-by-step explanation:

3y+5y=7y

5-3=2

Can you guys help me with this please it suppose to use the synthetic substitution or the remainder theorem.

Answers

9514 1404 393

Answer:

  (b)  -36

Step-by-step explanation:

Synthetic division is often performed using a table of the kind shown in the attachment. The coefficients of f(x) are placed across the top, and the x-value to be evaluated is placed at the left. The rule for finding table entries is shown. (The first (left-most) number at the bottom is the leading coefficient of the polynomial.)

This table shows the remainder, which is f(-2), is -36.

__

The equation itself can be rewritten in "Horner form" to facilitate evaluation.

  f(x) = (((-x +2)x -1)x +4)x +8

In this form, substituting for x and doing the evaluation is easier for mental arithmetic. You will notice that the contents of parentheses at each level match the bottom line of the synthetic division table.

  f(-2) = (((-(-2) +2)(-2) -1)(-2) +4)(-2) +8

  = (((4)(-2) -1)(-2) +4)(-2) +8

  = ((-9)(-2) +4)(-2) +8

  = (22)(-2) +8

  = -36

  f(-2) = -36 . . . . remainder from synthetic substitution

Matteo spends a total of 38 min exercising. He walks for 6 min to warm up and then runs at a constant rate of 8 min per mile for the rest of the time. Matteo says that he ran 4.75 mi. Is he correct?

Answers

Answer:

No, he not correct because he only ran 4 mi

Step-by-step explanation:

If he walks for 6 min out of the 38 min, then he ran for 32 min.

d = rt        1 mi = 8r

r = 1/8 = 1 mi/8 min   Since he ran 32 min we have

d = 1/8(32) = 4 mi.

No, he not correct because he only ran 4 mi

Cups are sold in packages of 8. Napkins are sold in packages of 12.

What is the fewest number of packages of cups and the fewest number of packages of napkins that can be purchased so there will be the same number of cups as napkins?

Answers

Answer:

2 Packages of Napkins, 3 Packages of Cups

Step-by-step explanation:

12 * 2 = 24

8 * 3 = 24

Answer:

3 packages of cups and 2 packages of napkins

What is YZ?

Enter your answer as a decimal in the box.

Answers

Answer:

YZ = 12.2

Step-by-step explanation:

YZ bisects XW and VW, therefore it is half of XV

24.4/2 = 12.2

Sarah rolls a fair dice 54 times.
How many times would Sarah expect to roll a four?

Answers

Answer:

9

Step-by-step explanation:

The dice will have 6 sides so divide 54 by 6

Answer:

9

Step-by-step explanation:

The dice will have 6 sides so divide 54 by 6

HOPE THIS HELPS!!!!

Graph f(x) = 2x - 1. Which of the following graphs is correct?

Answers

Answer:

there are no choices

Step-by-step explanation:

please and thank you ​

Answers

The answer to your question is D

Answer:

B

Step-by-step explanation:

ABC:

A = 10 degrees

B = 145 degrees

145 + 10 = 165

180 - 165 = 15 degrees

C = 15 degrees

MNP:

M = 145 degrees

N = 15 degrees

P = so therefore, P is 165 degrees

MNP is similar to ABC

The measure of angle R is 129 degrees,
What is the measure of angle S?

Answers

Answer:51

Step-by-step explanation:

Noah randomly selects one of his eight different pairs of shoes to wear each day. Of his eight pairs of​ shoes, Noah has two pairs of boots and one pair of loafers. For how many days of the next 264 is it expected that Noah will wear either boots or​ loafers?​

Answers

Answer: I’m pretty sure it’s 11/264 days

Step-by-step explanation:

what is the effect of the graph of the function f(x)=x^2 when f(x) is changed to f(x+8)?​

Answers

Answer:

Step-by-step explanation:

graph is translated left by 8 units

11x + 4y = 32
x = -2y - 2

Answers

The answer is y= -x/2 -1 solving for the Y

Can anyone plz answer this question, i will give brainliest

Answers

Answer:

C.6

Step-by-step explanation:

Remember, a constant term is a term that keeps repeating. Also, it's the only term that doesn't contain a variable. In this equation, 6 is the constant.

Hope I helped!!!

What is an equation of the line that passes through the points (-6,-5) and (-3,0)?put your answer in fully reduced form

Answers

Step-by-step explanation:

The equation is y = -3x + 6.

Answer:

3y = 5x + 15

Step-by-step explanation:

Slope = Change in y-cordinates

---------------------------------

Change in x-cordinates

= 0 - (-5)/-3 - (-6)

= 5/3

Using point (-3,0)

y - y1 = m(x - x1)

y - 0 = 5/3 (x - (-3))

y = 5/3 (x + 3)

Expand the bracket

y = 5x/3 + 15/3

Multiply through by 3

3y = 5x + 15

a woman is three times as old as her daughter six years ago the sum of their ages was 36 find the age of the daughter​

Answers

Answer:

12 hope this helps

Step-by-step explanation:

Which equation, when graphed, has x-intercepts at (8,0) and (-2, 0) and a y-intercept at (0, -48)?
f(x) = -3(x – 8)(x + 2)
f(x) = -3(X + 8)(x - 2)
f(x) = 3(x-8)(x + 2)
O f(x) = 3(X + 8)(- 2)

Answers

Answer:

f(x)=-3(x-8)(x+2)

Step-by-step explanation:

f(8)=-3(8-8)(8+2)=-3×0×10=0

f(-2)=-3(-2-8)(-2+2)=-3×(-10)×0=0

f(0)=-3×(0+8)×(0+2)=-3×8×2=-48

At an amusement park 40%of the tickets were sold in the 1st hour if 800 tickets were sold in an hour how many tickets were sold in a day

Answers

Answer:

40% = 0.40

800 / 0.40 = 2000 total tickets were sold

Step-by-step explanation:

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