Answer:
b=4
Explanation and how to do the model
5b+2=22
-2 -2 by subtractive property of equality
5b/5=20/5 by division property of equality
b=4
As for the model, it would be great if you could specify what your teacher is looking for and I'll help you from there
Cost price = £40
Selling price = £48
Calculate the percentage profit
PLS HELP WITH I GIVE BRAINLIEST
Help me with this please !!!! I will give you 50 POINTS!!!!!!!!!!!!!!!!!!!!
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Answer:
Option A
Step-by-step explanation:
Option A
f(x) = -3(x + 7)(x + 4),
Remember that to solve for the x-intercepts we equate y to 0,
-3(x + 7)(x + 4) = 0
Using the zero product property,
x + 7 = 0, x + 4 = 0
x = - 7, x = -4
x -intercepts: (- 7, 0) & (- 4, 0)
Hence proved.
At a high school basketball game 15% of the fans supported the visiting team.If the number of visiting supporters at the game was 75, what was the total number of fans at the game
Answer:500
Step-by-step explanation:
help fast please!!!!
Answer:
OK this is easy the answer is r=2.4
Step-by-step explanation:
so what you would do is simply add 3.1 and 1.7to get 4.8
then you would divide 4.8 by 2 and get r=2.4
Can y’all help with this math question? Plz
NEED HELP NOWWWW PLEASE HELPPPP!!!!!!!!!!
Answer:
-3 over 1
Step-by-step explanation:
Symbolab.com to help
Answer:
I’m not going to try ponte las pilas
Step-by-step explanation:
Simplify the expression:
17 – (-5x + 2)
Answer:
5x + 15
Step-by-step explanation:
Let's simplify step-by-step.
17−(−5x+2)
Distribute the Negative Sign:
=17+−1(−5x+2)
=17+−1(−5x)+(−1)(2)
=17+5x+−2
Combine Like Terms:
=17+5x+−2
=(5x)+(17+−2)
=5x+15
Answer:
=5x+15
Answer:
-3
Step-by-step explanation
You would first used distribuve property in the parenthisis.
Because there is a minus sign outside of the parenthisis, it would become (5x-2)
Combine like terms
15+5x=0
Subtract 15 from both sides
5x=-15
Divide 5 to get x
5x(/5)= -15(/5)
x=-3
Solve the inequality and graph the solution.
4x - 5 ≥ 7
Answer:
x=3
Step-by-step explanation:
it would go over the point 3,7 on the graph with a positive slope
The given inequality is solved to obtain as x ≥ 3.
What is linear inequality?Linear inequality refers to the relation between a linear algebraic expression to some known value that contains inequality sign.
Unlike a linear equation it can have a range of values inside an interval.
The given inequality can be solved as follows,
4x - 5 ≥ 7
Subtract 7 from both sides to obtain,
4x - 5 - 7 ≥ 0
=> 4x - 12 ≥ 0
=> 4x ≥ 12
=> x ≥ 3
The graph for the given inequality is shown as below,
Hence, the solution for the given inequality is x ≥ 3.
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BRAINLIST!!
Which of these situations have solutions that can be represented by this number line diagram?
Riley needs more than 65 students to sign up for a summer camp. So far, she has 30 students signed up. How many more students need to sign up for the camp?
Bailey is selling gift baskets at a fair. She has less than 80 gift baskets at home already made, and so far she has sold 45 at the fair. How many more gift baskets can she sell before she has to make more?
The number of people at Michelle's party increased by 35. How many people are at Michelle's party?
Mr. Winters reads more than 35 pages in his book every day. How many pages does Mr. Winters read on a given day?
Ms. Carol can have up to 35 students in her class. How many students could be in Ms. Carol's class?
Answer:
Mr. Winters reads more than 35 pages. More than 35 would imply 35+
Answer:
Riley needs more than 65 students to sign up for a summer camp. So far, she has 30 students signed up. How many more students need to sign up for the camp?
Step-by-step explanation:
Just got it right on my test!!
Given AD=8, AC=12, BC=15. Find the value of x that would make AADE-AACB
E
B
Answer:
DE = 10
Please put the Brainlest
Help please pleaseeee
Answer:
sowkdiwdjs
help me
Step-by-step explanation:
please lol
find the cofactors of each entry in the first row of matrix.
Answer:
Ac_11 = -13
Ac_12 = 44
Ac_13 = 27
Step-by-step explanation:
Plato
The cofactors of each entry in the first row of the matrix are
Ac_11 = -13
Ac_12 = 44
Ac_13 = 27
We have to determine the cofactors of each entry in the first row of the matrix.
What is the matrix?
A set of numbers is arranged in rows and columns so as to form a rectangular array. The numbers are called the elements, or entries, of the matrix.
Therefore the cofactors of each entry in the first row of the matrix is
Ac_11 = -13
Ac_12 = 44
Ac_13 = 27
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please help me
find
[tex] \sin(2x + \frac{5\pi}{4} ) [/tex]
if
[tex] \tan(x) = \frac{2}{3} [/tex]
Answer:
-17√2 /26 or -0.9247 to the nearest ten thousandth.
Step-by-step explanation:
The hypotenuse of the right triangle in which tan x = 2/3 is √(2^2 + 3^2)
= √13 so sin x = 2/√13 and cos x = 3/√13
sin2x = 2sinxcos
= 2* 2/√13 * 3/√13
= 12/13.
cos2x = cos^2x - sin^2x
= 9/13 - 4/13
= 5/13.
sin(2x + 5π/4)
= sin2x cos5π/4 + cos2x sin5π/4
= 12/13 * -1/√2 + 5/13 * -1/√2
= -12 / 13√2 - 5 / 13√2
= -17/13√2
= -17√2 /26.
In exercises 27-30, three vertices of DEFG are given. Find the coordinates of the remaining vertices: D(-2,-4), F(0,7), G(1,0)
Answer:
[tex]E =[/tex] [tex](-3,3)[/tex]
Step-by-step explanation:
Given
Parallelogram: DEFG
[tex]D(x_1,y_1) = (-2,-4)[/tex]
[tex]F(x_3,y_3) = (0,7)[/tex]
[tex]G(x_3,y_4) = (1,0)[/tex]
Required
Find the coordinates of [tex]E(x_2,y_2)[/tex]
To do this, we make use of mid-point formula which is:
[tex]M = (\frac{x_1+x_3}{2},\frac{y_1+y_3}{2})= (\frac{x_2+x_4}{2},\frac{y_2+y_4}{2})[/tex]
This gives:
[tex](\frac{-2+0}{2},\frac{-4+7}{2})= (\frac{x_2+1}{2},\frac{y_2+0}{2})[/tex]
[tex](\frac{-2}{2},\frac{3}{2})= (\frac{x_2+1}{2},\frac{y_2+0}{2})[/tex]
Multiply through by 2
[tex]2 * (\frac{-2}{2},\frac{3}{2})= (\frac{x_2+1}{2},\frac{y_2+0}{2})*2[/tex]
[tex](-2,3) = (x_2+1,y_2+0)[/tex]
[tex](-2,3) = (x_2+1,y_2)[/tex]
By comparison:
[tex]-2 = x_2 + 1[/tex] and [tex]3= y_2[/tex]
So, we have:
[tex]-2-1=x_2[/tex] and [tex]3= y_2[/tex]
[tex]-3 = x_2[/tex] and [tex]3 = y_2[/tex]
This gives:
[tex]x_2 = -3[/tex] and [tex]y_2 =3[/tex]
Hence, the 4th coordinate is: [tex](-3,3)[/tex]
estimate a 15% on a dinner bill of $42.58 by first rounding the bill amount to the nearest ten dollars
Answer:
$6
Step-by-step explanation:
Round $42.58 to the nearest ten dollars to get $40. $40 ÷ 100 = $0.4 so this is one percent. $0.4 × 15 is $6 which is an estimate of 15% of $42.58.
The answer is $6 (unless if you are meant to add this to $42.58 - then the answer would be $48.58 - but I am not sure because of the wording of the question).
*
1. The expression 0.235xy is a polynomial.
(1 Point)
Yes
No
Can't tell
9514 1404 393
Answer:
yes
Step-by-step explanation:
It is a one-term polynomial called a monomial.
The variables all have positive integer exponents (1).
Please explain to me how to solve for x. Picture attached
Answer:
35) x = 3 1/3
Step-by-step explanation:
for each of these parallelograms, the diagonals are congruent
in #35, DT = RT so you can set their expressions equal to each other
22 = 6x + 2
20 = 6x
20/6 = x
10/3 = x (simplified)
Please answer this.....its very simple question....
A weighing scale with two objects x and y is shown below:
100 g
500 g
Which of the following relations about the weights of x and y is true?
A. x is 400 g heavier than y.
C. y is 5 times as heavy as x
B. x is 400 g lighter than y.
D. x and y weigh the same.
The answer is B. x is 400 g lighter than y.
Answer:
B. x is 400 g lighter than y.
what is the minimum value of the parabola y = x^2 + 10 ?
In a high school stadium there are 1575 seats. There are two and a half times as many seats in the home section as there are in the visitor section. Which system of equations could be used to determine the number of seats in the home section, h, and the number of seats in the visitor section, v, in the stadium?
Answer:
h = 1,125
v = 450
Step-by-step explanation:
Total number of seats = 1575
h = number of seats in the home section
v = number of seats in the visitor section
There are two and a half times as many seats in the home section as there are in the visitor section.
h = 2 1/2 * v
h = 2 1/2v
Total = h + v
1575 = 2 1/2v + v
1575 = 3 1/2v
1575 = 7/2v
v = 1575 ÷ 7/2
= 1575 × 2/7
= (1575*2) / 7
= 3150 / 7
= 450
v = 450
h = 2 1/2v
= 5/2*450
= 2250/2
= 1,125
h = 1,125
A hybrid SUV can travel 400 miles on a 15-gallon tank of gas. How many miles can it travel on 6 gallons of gas?
Answer:
160miles
Step-by-step explanation:
400miles uses15g what about 6g.
Using cross multiplication. Multiply 6x400/15 = 160miles
Answer:
160 miles
Step-by-step explanation:
If it travels 400 miles on 15 gallons, then it will travel x miles on 6 gallons
400 miles -> 15 gallons
x miles -> 6 gallons
15 * x = 6 * 400
15x = 2400
x = 2400 / 15
x = 160 miles
If f(x) = 2 (3x) + 1 , what is the value of f(2) ?
Answer:
13
Step-by-step explanation:
f(x)=2(3x)+1
f(2)=2(3X2)+1
f(2)=2(6)+1
f(2)=12+1
f(2)=13
The value of function f(2) is 13.
What is a function?Function is a type of relation, or rule, that maps one input to specific single output.
Given function; f(x) = 2 (3x) + 1
We need to find the value of f(2) .
f(x) = 2(3x)+1
f(2) = 2(3 * 2)+1
f(2) = 2(6)+1
f(2)=12+1
f(2)=13
Therefore, the value of function f(2) is 13.
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Solve for p in 2.5+3(5 – 2.1p) = -13.37
Answer: p = 4.9
Step-by-step explanation:
2,5 + 3(5-2.1p) = -13,37
2,5 + 3(5-2.1p) - 2,5 = -13,37 - 2,5
3(5-2.1p) = -15,87
3(5-2.1p) / 3= -15,87 /3
5-2.1p = -5.9
5+5.29 = 2.1p
(5+5.29 ) /2.1 = 2.1p /2.1
4.9 = p
i will mark brainliest
Answer:
1. -3, -2.5, -3/4, -3/8, 1/4, 16/5, 3.1, 6
Step-by-step explanation:
2. -2.7<4.5
I know 1. is right but 2. I'm not sure how advance the math is but that is what I got for the answer
HELP ME PLZZ
what is the slope of this line?
Answer:
4/5
Step-by-step explanation:
Which of the following systems would produce a hormone that causes bones to grow?
A
integumentary system
B
nervous system
C
endocrine system
D
lymphatic system
Answer:
i believe it is c
Step-by-step explanation:
The correct answer is the endocrine system.
What are bones? What are hormones?Bones provide the structure for our bodies. The adult human skeleton is made up of 206 bones.Hormones are your body's chemical messengers. They travel in your bloodstream to tissues or organs. They work slowly, over time, and affect many different processes, including: Growth and development.We have some systems would produce a hormone that causes bones to grow.
The correct answer is the endocrine system. It secretes hormones are involved in controlling bone growth, maintaining bone once it is formed, and remodeling it.
Therefore, the correct answer is the endocrine system.
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Find the area of the triangle.
Answer:
107.1 yd²
Step-by-step explanation:
Given
base (b) = 34 yd
height (h) = 6.3 yd
Area of the triangle
= 1 /2 * b * h
= 1/2 * 34 * 6.3
= 107.1 yd²
Hope it will help :)❤
Class A has 20 pupils and class B has 22 pupils.
Both classes sit the same maths test.
The mean score for class A is 40.
The mean score for both classes is 47.
What is the mean score (rounded to 2 DP) in the maths test for class B?
40×20=800 i just gest so if you wana delite my answer go then
4. If y varies directly as x and y = 72 when x = 6 find y when x = 4.