The value of the given expression is -15 - 3y
What is the value of the expression?In maths, when there are terms in the bracket, it means we are to multiply the terms in the brackets by each other. This means that 5 + y would be multiplied by -3.
Multiplication is the process of determining the product of a set of numbers.
(5 + y)(–3) = -15 - 3y
To learn more about multiplication, please check: https://brainly.com/question/1114498
What is the perimeter of a pentagon with side length 35cm?
Answer:
175 cm
Step-by-step explanation:
35 x 5 = 175
you are on a 750 mile trip by car . ur car used seven gallons of gas to travel the first 210 miles of the trip. how much more gas will u need to make it the rest of the way at the same rate ? show work
Answer:
A total of 18 gallons of more gas
Step-by-step explanation:
7 gallons = 210 miles
750-210= 540
210*2 =420 miles 7*2=14 gallons
210/2= 105 7/2=3.5 gallons
525 miles 17.5 miles
210/14= 15 7/14=.5 gallons
540 miles 18 gallons
Solve the system of linear equations by substitution.
y = 2x + 8
y = -2x
Answer:
(- 2, 4 )
Step-by-step explanation:
y = 2x + 8 → (1)
y = - 2x → (2)
substitute y = 2x + 8 into (2)
2x + 8 = - 2x ( add 2x to both sides )
4x + 8 = 0 ( subtract 8 from both sides )
4x = - 8 ( divide both sides by 4 )
x = - 2
substitute x = - 2 into (2)
y = - 2(- 2) = 4
solution is (- 2, 4 )
Answer: [tex]y=4,\:x=-2[/tex]
Step-by-step explanation:
[tex]\begin{bmatrix}y=2x+8\\ y=-2x\end{bmatrix}[/tex]
[tex]\mathrm{Substitute\:}y=-2x[/tex]
[tex]\begin{bmatrix}-2x=2x+8\end{bmatrix}[/tex]
[tex]{Isolate\:}x{for -2x=2x+8[/tex]
[tex]x=-2[/tex]
[tex]\mathrm{For\:}y=-2x[/tex]
[tex]\mathrm{Substitute\:}x=-2[/tex]
[tex]y=-2\left(-2\right)[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]y=4[/tex]
[tex]The\:solutions\:to\:the\:system\:of\:equations\:are:[/tex]
[tex]y=4,\:x=-2[/tex]
Good Luck!
Cory writes the polynomial x7 3x5 3x 1. Melissa writes the polynomial x7 5x 10. Is there a difference between the degree of the sum and the degree of the difference of the polynomials?.
Degree of a polynomial gives the highest power of its terms. Yes there is a difference between the degrees of sum and difference of the polynomials.
What is degree of a polynomial?Degree of a polynomial is the highest power that its terms pertain(for multi-variables, the power of term is addition of power of variables in that term).
Thus, in [tex]x^3 + 3x^2 + 5[/tex], the degree of the polynomial is 3 as the highest power in its terms is 3.
(power and exponent are same thing)
What are like terms?Those terms which have same variables raised with same powers.
For example, [tex]x^3[/tex] and [tex]3x^3[/tex] are like terms since variable is same, and it is raised to same power 3.
For example [tex]4x^2[/tex] and [tex]x^3[/tex] are not like terms as the variables are same but powers aren't same.
The given polynomials are:
[tex]c(x) = x^7 + 3x^5 + 3x + 1\\\\p(x) = x^7 + 5x + 10[/tex]
Their sum is
[tex]c(x) + p(x) = x^7 + 3x^5 + 3x + 1 + x^7 + 5x + 10 = (1+1)x^7 + 3x^5 + (3+5)x + 11\\\\c(x) + p(x) = 2x^7 + 3x^5 + 8x + 11[/tex]
(only like terms' coefficients can be added (or subtracted) for addition or subtraction of them )
The sum's degree is 7
Their difference is:
[tex]c(x) - p(x) = x^7 + 3x^5 + 3x + 1 - x^7 -5x - 10 = (1-1)x^7 + 3x^5 +(3-5)x -9\\\\c(x) - p(x) = 3x^5 - 2x - 9[/tex]
Difference's degree is 5
Thus, both's degrees are not same.
Thus, Yes there is a difference between the degrees of sum and difference of the polynomials.
Learn more about subtraction of polynomials here:
https://brainly.com/question/9351663
Based on the information in this table, which equation can be used to model the relationship between x and y?
Question 6 options:
y = 5x + 2
y = 2x
y = 2x + 5
y = 5x
Take 2 points
(6,17)(7,19)Slope:-
[tex]\\ \tt\hookrightarrow m=\dfrac{19-17}{7-6}=2[/tex]
Equation in point slope form
[tex]\\ \tt\hookrightarrow y-17=2(x-6)[/tex]
[tex]\\ \tt\hookrightarrow y-17=2x-12[/tex]
[tex]\\ \tt\hookrightarrow y=2x+5[/tex]
which of these functions has the highest midline?
a) 1-sin(t+3pi/2),
b) 2-sin(t/2 + pi/4),
c) sin(2t- pi/2),
d) 2sin(t-pi)
I need help on this other question sry if it is hard... here is the pic.
Answer:
142%
Step-by-step explanation:
i may be wrong but hopefully im not!!
Answer:
142%
Step-by-step explanation:
To change a fraction to a percentage, multiply it by 100%
1 [tex]\frac{21}{50}[/tex] ( change to an improper fraction )
= [tex]\frac{71}{50}[/tex] × 100% = 71 × 2 = 142%
Anna is designing the plan of a kitchen using some computer aided design software. the coordinates of the corners of the room on screen are (0,10) (220,10) (0,260) (220,260). she needs to enter the coordinates of the ceiling light, which will be the exactly in the center of the room. what will the coordinates of the light be?
PLEASE HELP ME IF YOU CAN AS SOON AS POSSIBLE. THANK YOU
(220,10)
Step-by-step explanation:
This reminds me of when I was in middle school
Answer:
(110, 135)
Step-by-step explanation:
From the coordinates given, the shape of the ceiling is a rectangle.
Width = difference in x-coordinates = 220 - 0 = 220
Length = difference in y-coordinates = 260 - 10 = 250
To find the center of the ceiling, we need to find the centroid (center-point) of the rectangle.
x-coordinate = Half of the width + smallest x-coordinate= (220 ÷ 2) + 0 = 110
y-coordinate = Half of the length + smallest y-coordinate = (250 ÷ 2) + 10 = 135
Therefore, the center of the ceiling is at (110, 135)
Evaluate a + b for a = 2 and b = 3.
Hey there!
a + b
= 2 + 3
= 5
Therefore, your answer is: 5
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
How many degrees are there in the angle between the hour and minute hands of a clock is a quarter past two
The number of degrees there are in the angle between the hour and the minute hands of the described clock is; 30°
Angle measure on a wall clockThe conventional analogue wall clock is numbered 1 to 12.
On this note, there are 12 unit subdivisions on the clock.
Each unit subdivision covers angle measure;
360°/12 = 30°Since, at quarter past two; the hour arm of the clock is on 2 and the minute arm is on 3;
It follows that the degree measure of the angle subtended is; 30°.
Read more on degree measure;
https://brainly.com/question/4221639
A farmer has 696 acres of pasture for sheep grazing, and 40 acres for growing cotton. An average of 8 sheep graze on one acre. How many sheep does the farmer have?
Step-by-step explanation:
[tex]1 \: acre \: = \: 8 \: sheeps \\ 696 \: acres \: = 8 \times 696 = 5568 \: sheeps[/tex]
PLEASE HELP ME I REALLY NEED IT
angle A and angle B are supplementary angles. Find m angle A and m angle B.
m angle A=(x+11) m angle B=(x-15)
Tatiana reads 40 pages of her book every night for x number of nights. write and expression that repressents the number of pages eh read
Answer: 40x
Step-by-step explanation:
Titiana read 40 pages of her book every night for x number of nights, which means she read 40 pages every day. So 40 times x is how many pages she read in all.
Ann purchased a DVD player on sale. The initial price was $175.90. The price after the discount was $150.75. What was the percent of decrease (discount rate)?
Answer:
14.29% decrease (actual : 14.2979%)
Seven people are going to share an 84-ounce bottle of soda. How many ounces will each person get to drink?
Answer:
Each person is gonna drink 12 ounces
Step-by-step explanation:
84 divided by 7 is 12
As it is 7 people sharing one drink that is 84 ounces I divided since they would be sharing equally and as it was the right thing to do.
Not a teacher
Determine if the statement is true or false.
66 = 7 (mod 12)
Answer:
false
Step-by-step explanation:
66 mod 12
quotient 5
reminder 6
true statement
66 = 6 (mod 12)
can you simplify 4+6(3)+2(5 1/2 -1)
Answer:
31
5 1/2 - 1 = 4.5
4+ 18= 22
2(4.5) = 9
22+ 9 = 31
Step-by-step explanation:
There are seven boys and seven girls in a class. The teacher randomly selects one student to answer a question. Later, the teacher randomly selects a different student to answer another question. The first student is a boy and the second student is a girl.
Find the probability
Carlos uses a food delivery service to order lunch. He paid $13.75 for lunch, which included the cost of the food and a delivery fee, which is 10% of cost of the food. What was the cost of Carlos' lunch before the delivery fee? Enter your answer in the box.
Answer:
$12.50
Step-by-step explanation:
Let x = the cost of the food without the delivery fee.
The delivery fee can be represented as 0.10x.
Keep in mind that the cost of the food plus the delivery fee equals $13.75.
Therefore, your equation will look like: 13.75 = x + 0.10x
x + 0.1x = 1.10x
So, 13.75 = 1.10x
This means that x = 13.75/1.10
x = 12.5 = $12.50
Answer: Let's represent the cost of the food as "x".
We know that the delivery fee is 10% of the cost of the food, so it can be written as 0.1x.
The total cost that Carlos paid for lunch is the sum of the cost of the food and the delivery fee, which is:
Total cost = Cost of food + Delivery fee
$13.75 = x + 0.1x
Simplifying the equation, we get:
$13.75 = 1.1x
Dividing both sides by 1.1, we get:
x = $12.50
Therefore, the cost of Carlos' lunch before the delivery fee was $12.50.
YES 12.50 is correct I am a k12 student and I have proof. the quiz name is 2.09 Quiz: Multistep Percent Problems
Sam buys a bus ticket for $1.60 and a breakfast burrito for $3.75 each day, Monday through Thursday. He leaves a $1.40 tip each day.
Answer: $22.20
Step-by-step explanation: yw
10+s=-4 help yall asap this is mad hard
ANSWER = s = -14
Proof -14+10=s
There re 380 light bulbs lined up in a row in a long room. Each bulb has its own switch and is currently switched off. Each bulb is numbered and is consecutively from 1 to 380. You first flip every switch. You then flip the switch on every second bulb. You then flip the switch on every third bulb. This continues after you have gone the process 380 times
(I rlly need help)
Flipping the bulbs is an illustration of sequence and patterns
19 bulbs would remain on.
How to determine the number of bulbs that will be onThe sequence of turning the bulbs off and on, would change the state of the bulbs until the 380th process.
While changing the state of the bulbs, the bulb at the perfect square positions would remain on.
There are 19 perfect square numbers between 1 and 380 (inclusive)
Hence, 19 bulbs would remain on.
Read more about sequence and patterns at:
https://brainly.com/question/26698448
Question within image.
1)a parallelogram is a quadrilateral with opposite sides being parallel so the lines AB must equal CD or otherwise it wouldn't be a parallelogram
2)for a quadrilateral to be proven to be a parallelogram the consecutive angles has to be supplementary which means they add up to 180 or for example you could slice the parallelogram in half down the middle you could piece the two consecutive angles together to make 180 degrees
FIRST PERSON TO ANSWER GETS BRAINLIST AND 10 POINTS!!!!!!
Robert's dresser drawer contains 4 red socks, 10 black socks, 6 white socks, and 4 gray socks. If Robert randomly selects one sock from the drawer, which of the following statements are true? Select all that apply. The probability of selecting a gray sock is the same as the probability of selecting a red sock Each color sock is equally likely to be chosen from the drawer. This scenario can be represented by a non-uniform probability model. This scenario can be represented by a uniform probability model.
Answer:
The answer to your problem is black (1/5)
Step-by-step explanation:
-All of the following are phases (states) of matter EXCEPT:
Answer:
The states of matter are solid, liquid, gas, and plasma
Step-by-step explanation:
you didn't have any options so I'm just telling you them
6) the cost of a video game is $22.00
Sales tax is 6%
How much will the game cost, including tax
Answer:
$23.32
Step-by-step explanation:
what is 9.6 divided by 0.12 (with equation pls)
Answer:
9.6 ÷ 0.12
Expand 9.6/0.12 by multiplying both numerator and the denominator by 100.
=960/12
Devide 960 by 12 to get 80
=80
So the answer is 80
Step-by-step explanation:
#Carry on learning
what is the area of the parallelogram
Answer:
the area parallelogram is 90%
How do you calculate 33% of 500 by first calculating 1% of 500
Answer:
165
Step-by-step explanation:
first 1% of 500 is calculated and then multiplied by 33:
[tex]\frac{1}{100} (500)=5[/tex]
5(33)=165
Hope this helps