Mathematics High School

-4 - 2 (y + 1) = -7
step by step pla

Answers

Answer 1
Answer is: y= 1/2
Couldn’t fit all steps let me know if you need all of the steps!
-4 - 2 (y + 1) = -7step By Step Pla
Answer 2
Y=1/2

Step by step:
-4 -2y -2 = -7
-6-2y= -7
-2y = -7+6
-2y = -1
Y=1/2

Related Questions

What is the slope of the line on the graph?

Answers

Answer:

[tex]m=6[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (1, 5)

Point (0, -1)

Step 2: Find slope m

Substitute:                    [tex]m=\frac{-1-5}{0-1}[/tex]Subtract:                       [tex]m=\frac{-6}{-1}[/tex]Divide:                          [tex]m=6[/tex]

i need help with finding the value of x

Answers

Answer:

Step-by-step explanation:

work with the ratios

2x/x+5 = 3/4

Cross multiply

2x *4 =3(x+5)

8x = 3x + 15 ( minus 3x from both sides)

-3x   -3x

5x = 15

Divide both sides by 5 to isolate the variable

x = 3

Answer:

x equals 1.5/ one point five

What is the height of the trapezoid?
O 3 units
o 5 units
o 10 units
12 units

Answers

Answer:

5 Units

Step-by-step expla

Answer: b

Step-by-step explanation:

Write an equation in slope-intercept form for the line with slope -4 and y-intercept 6 . Then graph the line.

Answers

Answer:

(-4,6)

Step-by-step explanation:

graph in second quadrant

whats the answer to this

Answers

Answer:

7i-5

Step-by-step explanation:

Unit rate $80 For 16 tickets?

Answers

80/16 = 5

Unit rate: $5 / ticket

Answer: each ticket cost 5 dollar

Step-by-step explanation: if you do 80 divide 16 you will get 5. So if you did 5x16 you would get 80.

Last year a musician made a profit of $1,500 from the sale of his CDs. If he donated 5% of this profit to charity, how much money did he donate to charity?

Answers

Answer:

$3,000

Step-by-step explanation:

5% = .5

1,500 ÷ .5 = 3,000

There is a elephant shaped weather vane at the top of a corn dryer tower that is 45 m high. If the weather vane weighs 190 N, what is the Potential Energy that the wether vane has?

Answers

Answer:

Potential Energy = 8550 Joules

Step-by-step explanation:

The potential energy of the body is the energy possessed by it due to its position therefore:

Potential energy = mgh

m = mass of the body measured in kg

g= acceleration due to gravity

h= height or distance measured in meters

But in the question asked we are not given mass but weight so

w= mg   measured in newtons

We have

w= 190 N

h= 45m

PE= mgh

PE  = w h= 190 * 45 =  8550 J

The unit of energy is Joule.

How would I round .1245 to the nearest Hundredths???

Answers

Answer:

.12

Step-by-step explanation:

See if the number after the hundreths is greater than or 5, which in this case its not, so you will round it by keeping it the same

Someone please help me these are my last points

Answers

Answer:

Part A: 5 miles per hour or 12 min per mile.

Part B: 30 min to get to his friends house.

Question 16 Part B: 30 minutes.

Step-by-step explanation:

Part A:

36 min for 3 miles so the unit is :

36/3 = 12 so: 1 mile per 12 min and 5 miles per hour.

Part B:

21/2 miles away so:

one mile per 12 min so 2.5 x 12 = he'll get there in 30 min.

Question 16 Part B:

just type in 30.

Tyler is going on a road trip with his family. He pays $16.80 for 4 gallons of gas. What is the cost per gallon? What is the cost of 3 gallons? 5 gallons?

Answers

The cost per gallon of gas is $4.2.
($16.80 divided by 4 gallons)
The cost of 3 gallons is $12.6.
(3 gallons times $4.2)
The cost of 5 gallons is $21.
(5 gallons times $4.2)
You can continue the pattern of $4.2 dollars times each gallon forever.

Which is a linear graph, and which is a nonlinear graph?
How do you know?
Orange is linear; blue is nonlinear
Blue is linear; orange is nonlinear
Both are linear
Both are nonlinear

Answers

Answer:

Blue is linear; orange is nonlinear

Step-by-step explanation:

linear is straight

nonlinear is not

Please help me out! I can’t do this on my own.

Answers

Answer:

y = 6x

Step-by-step explanation:

y = mx + b

Slope (m) = 6/1 up 6, right 1

Y-intercept (b) = 0

What is the equation of this graphed line?
Enter your answer in slope-intercept form.


Please answer quickly, whoever answers correctly I will give Brainliest, thank you.

Answers

Slope: (y2-y1)/(x2-x1)
Points: (-4,-6), (2,6)
(6+6)/(2+6) = 12/8 = 3/2
Y = 3/2x +b
-6 = 3/2(-4) + b
-6 = -6 + b, b = 0
Equation: y = 3/2x

6 boxes of 3-inch incense sticks for $22.75 is a better buy than 8 boxes for $30 and 10 boxes for $38.00

True

False

Answers

Answer:

Step-by-step explanation:

22.75/6 boxes is $3.79 per box

30/8 boxes is $3.75 a box

38/10 boxes is $3.80 a box

68/18=3.70 a box if you combine the last two.

So no, the 6 boxes at $3.79 a box is not a better buy.

Where is the blue dot on the number line?

Answers

Answer:

where is the picture and can you answer the questions on my page for points

Answer: Where is the number line or the blue dot?

PLEASE HELP I DONT UNDERSTAND IT EXPLAIN YOUR ANSWER THO



WOULD IT BE 5

Answers

Answer:

That is correct, The answer IS 5. Good job

Step-by-step explanation:

I know how A.P.E.X can be confusing, but keep trying!

I believe the answer is 5 because that has to add up to 30 because it is a triangle.

PLEASE MARK BRAINLIEST

Answer:

its 90 degrees

Step-by-step explanation:

$4 per hour and a $3 gas fee

Answers

Answer:

What are you supposed to do?

Step-by-step explanation:

Which expression is equivalent to –5(x + 10)? F. 5x + 50 G. −5x + 10 H. −5x − 50 I. 5x − 50

Answers

Answer:

H) -5x - 50

Step-by-step explanation:

(-5 · x) + (-5 · 10) = -5x - 50

50 POINTS IF YOU CAN ANSWER IT!
(Click the photo to see the math problem)
Suppose your community has 3580 people this year. the population is growing 2.5% each year.
Write an exponential function to model the population. what will the population be in 3 years? Graph the function and give the domain and the range. ​

Answers

Step-by-step explanation:

a could be 3580 X 1.25^n

b could be 6992.19

dk c

A researcher wants to know if eating a mint affects whether people can distinguish between two popular orange juice brands. To conduct an experiment, the researcher places participants in two groups. The treatment group will eat a mint before drinking a juice, while the control group will not eat a mint before drinking. Then the participants will guess the juice brand.

Randomization is important when assigning the participants to the treatment and control groups to ensure

that there will be the same number of participants in both groups.
that the experiment results can be generalized to all people.
that both groups have participants that like both popular juice brands.
that both groups are roughly equivalent with regards to demographics and juice preferences.

Answers

Answer:

D

Step-by-step explanation:

Just took the quiz trust me

Randomization helps to eliminate the effect of sampling bias in an experiment. Therefore, random assignment of participants ensures equivalence in terms of the demographic and juice preference.

When subjects are randomly assigned to the groups, it eliminates the possible bias which may arise from personal preference which subjects have for a particular juice and which may yield a trend which isn't as a reflection of the actual study.

Therefore, the elimination of bias as a result of random assignment helps to strike a balance between the treatment and control samples regarding preference.

Learn more : https://brainly.com/question/8882508

What is the result of isolating x2 in the equation below?
x2 + (y- 5)2 = 30
A. *2 = y2 + 10y+5
B. x2 =-y2 + 10y+25
C. x2 = 30 - y2
D. x2 = - y2 + 10y+5

Answers

Answer:

Step-by-step explanation:

X^2=-y^2+10y+5

Matilda wants to average sales in her café of $1400 per day. During the first 4 days of the week, her sales were $1289, $1498, $1327 and $1510. What does she need her sales for the 5th day of the week to meet her 5-day sales goal?

Answers

Answer

Matilda needs to sell 1376$ worth of coffee

What is the slope of the line given by the function f (x) = 7 – 2x?

Answers

Answer:

I am not certain but I think it is -2 give that a try and hope it helps!

Giving 15 point plz help me

Answers

Answer:

3

Step-by-step explanation:

Looking at the first three values of the table- when the x increases by 1, the y increases by 3.

Answer:

It's 3, I believe.

Step-by-step explanation:

If it isn't I'll remove my answer so someone else can answer. :)

i need help on this please​

Answers

-6 answer to -4+(-2)

3 answer to 7+(-4)

someone help me Please

Answers

Answer:

16

Step-by-step explanation:

3+5×5-9÷3×4

3+25-3×4

3+25-12

3+13

16

For two weeks the highest temperature each day was recorded in four different cities.

Answers

Answer:

b is your answer (:

Please help ASAP! Due tonight!

Answers

Answer:

D. x = √17

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Trigonometry

Pythagorean Theorem: a² + b² = c²

Step-by-step explanation:

Step 1: Define

leg a = 4

leg b = 1

hypotenuse c = x

Step 2: Solve for x

Substitute:                     4² + 1² = x²Exponents:                    16 + 1 = x²Add:                               17 = x²Isolate x:                        √17 = xRewrite:                         x = √17

Pls help with this problem

Answers

Answer:

E = 4.5, F = -6.25, D = -3.25

Step-by-step explanation:

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