Answer:
10 : 4, 15 : 6, 20 : 8, 25 : 10, 30 : 12, 35 : 14, 40 : 16, 45 : 18, 50 : 20, 55 : 22 60 : 24 65 : 26 70 : 28 75 : 30 there are many many more
Step-by-step explanation:
URGENT PLEASE HELP WILL MARK U AS BRAINLIEST!!!!!
Answer:
12
Step-by-step explanation:
I just know please mark brainliest!!!
what is the answer to this? −1.2b−5.3≥1.9
Answer:
b≤−6
here u go
Answer:
b ≤ -6 ✅Step-by-step explanation:
To solve an inequality, we will solve just like a normal equation. The goal is to isolate b, so we can determine the set of values it can take on.
Step 1: Add 5.3We need to reverse the operation - 5.3, so we add 5.3.
-1.2b - 5.3 + 5.3 ≥ 1.9 + 5.3
-1.2b ≥ 7.2
Step 2: Divide by -1.2We need to reverse the multiplication that is multiplying b by -1.2, so we will divide. However, we must remember an important rule first.
Important: When we divide by a negative number in an inequality, we must reverse the inequality sign, so ≥ becomes ≤.
-1.2b / -1.2 ≥ 7.2 / -1.2
b ≤ -6 (remember to reverse the sign!)
Step 3: CheckWe now substitute our answer in and see if it is correct. We will use a number that is smaller than -6, for example, -8.
-1.2(-8) - 5.3 ≥ 1.9
9.6 - 5.3 ≥ 1.9
4.3 ≥ 1.9 ✅
We can check again with -6, since this and all numbers smaller than it should be a solution set.
-1.2(-6) - 5.3 ≥ 1.9
7.2 - 5.3 ≥ 1.9
1.9 ≥ 1.9 ✅
b ≤ -6 ✅Help pls..............!!!!!!!!!!!
Answer:
you add it all up and lever the sides
Step-by-step explanation:
Paula has $54. She bought some pencils, each costing $0.75, and a paper ream for $2.50. She is left with $42.50 after buying pencils and the ream of paper. She uses the equation Syntax error from line 1 column 49 to line 1 column 73. Unexpected 'mathsize'. to find the number of pencils she bought. How many pencils did Paula buy?
Answer:
12 pencils
Step-by-step explanation:
let no. of pencils bought be x.
54 - 0.75x - 2.50 = 42.50
9 = 0.75x
x = 12
Topic: algebraic equations
If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!
Albert bought 9 pounds of fish at a grocery store at $5 per pound for salmon and $3 per pound for catfish. He spent a total of $37 on the salmon and catfish. This can be represented using the following system of equations:5s +3c = 37 s + c = 9 How many pounds of salmon did Albert purchase?
Answer:
5 pounds
Step-by-step explanation:
To find that we simply solve the system of equationsSo make c the subject of the formula of equation 2[tex]s+c=9\\c=9-s[/tex] Substitute in equation 1 [tex]5s+3c=37\\5s+3(9-s)=37\\5s+27-3s=37\\5s-3s+27-(27)=37-(27)\\2s=10\\s=5[/tex] so that's 5 pounds of salmoni need help with this ^
Answer:
a=11
Step-by-step explanation:
Add all expressions to equal 180. (a+20+12a-14+a+20=180)
Combine like terms and solve
You'll get a=11
Need help! only have today till I turn in!
Answer:
yes
Step-by-step explanation:
HELP PLEASE :) * giving brainliest*
Solve the system of equation. Write the solution as a coordinate point
Answer:
(2,16)
Step-by-step explanation:
y=-x+18
y=8x
8x=-x+18
8x+x=9x
-x+x=0
9x=18
9x/9=x
18/9=2
x=2
y=8(2)
y=16
Answer:
(2,16)
Step-by-step explanation:
Step 1: Substitute -x+18 for y in y=8x:
-x+18=8x Add X to both sides
9x=18 Divide 9 by both sides
x=2
y=8(2)Plug in the new value for x(which is 2) into one of the equations
y=16
(2,16)
Hope this helped, good luck!
Which statement illustrates the distributive property?
Answer:
3(4+5) = 3(4) + 3(5)
Step-by-step explanation:
in distributive property, you multiply the number outside the parenthesis by both of the numbers inside, but still keeping the sign the same.
Answer:
b
Step-by-step explanation:
5. What three consecutive integers have a sum of 21?
You are a landscaper, and you are designing a fence to enclose part of a yard. The section to be enclosed is rectangular and has a width of 21 feet and a length of 38 feet. What length of fence, in feet, will you need to enclose this part of the yard? 59 60 118 120 798
Answer:
If you draw this out, you can see that total fence equation will be:
2L + 4W = 1200
Simplify, divide by 2
L + 2W = 600
L = (600-2W)
:
Area;
A = L*W
Substitute (600-2W) for L:
A = (600-2W)*W
A = -2W^2 + 600W; a quadratic equation
:
The dimension that will produce the greatest area will be the "axis of symmetry
which is: x = %28-b%29%2F%282a%29
:
In this equation a=-2, b=600
W = %28-600%29%2F%282%2A-2%29
W = %28-600%29%2F%28-4%29
W = +150 ft is the width
:
Find the length
L = 600 - 2(150)
L = 300 ft is the length
:
We can say the a field 300 by 150 gives he greatest area
:
This illustrated on a graph where y axis is the area and x axis is the width:
Step-by-step explanation:
Answer:
798
Step-by-step explanation:
21x38=798
Samir took a total of 21 quizzes over the course of 3 weeks. After attending 6 weeks of school this quarter, how many quizzes will Samir have taken in total? Solve using unit rates.
PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((
Answer: -4
Step-by-step explanation:
Answer:
- 1/4
Step-by-step explanation:
The formula to find slope from two points is (x₂ - x₁) / (y₂ - y₁).
Substituting the points in (2, 4 = x₁, y₁ and 5, -8 = x₂, y₂) we get (5 - 2) / (-8 - 4).
= 3 / -12
= - 1/4
(Tip: when assigning the numbers to the variables, make sure x₁, y₁ are always from the same pair.)
What shape is common to the base of both a cylinder and a
cone?
A)triangle
B)circle
C)square
D)rectangle
What decimal is equivalent to 5/6?
Look at the picture.
Answer:
The answer is B
Step-by-step explanation:
Answer:
B. 8.3 with the bar on the 3
Step-by-step explanation:
B because the decimal of 5/6 is 8.3333333 and so on to represent the repeating and endless 3 put a bar on the 3.
Michelle bought some pinwheels for a dollar and paid in dimes. How many dimes did she use. Explain
Answer: 10
Step-by-step explanation:
There are ten cents in a dime, you multiply 10 times 10 and that will give you 100. hope this makes sense
In ΔDEF, d = 9.8 cm, e = 9.2 cm and f=4.7 cm. Find the measure of ∠E to the nearest degree.
Answer: 69
Step-by-step explanation: Trust
What is the slope of the line that passes through the points (-5, 0) and (7, 8) ? Write your answer in simplest form
Answer
two-thirds
Step-by-step explanation:
8 over 1 2simplified is 2 over 3
PLEASE HELP ME ASAP THIS IS DUE IN LESS THEN A HOUR PLEASE
Figure D is in Quadrant II. It is reflected across the x-axis. Then figure D' is rotated 90° counterclockwise around the origin to form figure D". Then figure D" is translated 4 units to the left to form figure D'". Decide if each statement about the figures is true or false. Choose True or False for each statement. *
4 points
true False
Figure D'' is in Quadrant II
Figure D' is in Quadrant III
The x coordinates for vertices D''' are all negative
The y coordinates for vertices D'' are all positive
Figure D'' is in Quadrant II
Figure D' is in Quadrant III
The x coordinates for vertices D''' are all negative
The y coordinates for vertices D'' are all positive
This question requires one
Answer:
4
Step-by-step explanation:
because im smart
What is the slope-intercept form of the equation of the line that passes through the point (-6,1), and is perpendicular to the graph of 2x + 3y = -5
Answer:
Y= -3/2x-8
Step-by-step explanation:
What is the slope of the line that passes through the points (-10,8) and (-15,-7)? Write in simplest form
Answer:
3
Step-by-step explanation:
-slope of line : ( y2 - y1 )/(x2 - x1)
- (-7-8)/(-15-(-10)) = 3
please help me!! PLEASE HELP ME!! please
b
Step-by-step explanation:
because it is a function
Pls help ASAP this table keeps going
Answer:
Words: 2 Minutes: 0.33
Step-by-step explanation:
12/6=2 & 2/6=0.33.
What is 60% of 30? A. 24 B. 12 C. 21 D. 18
Answer:
18
Step-by-step explanation:
60% 0f 30 is 18
D. 18
how to find common denominator
Answer:
To make the denominators the same Multiply top and bottom of each fraction by the denominator of the other.
Step-by-step explanation:
3.2.PS-10
Investors buy a studio apartment for 240,000. Of this amount, they have a down payment of 60,000. Their down payment is what percent of the purchase price? What percent of the purchase price would a $84,000 down payment be?
Answer: 5
Step-by-step explanation:
If x=4 y=-3 and z =5 find the value of 5y +2x-z
Answer:-12
Step-by-step explanation:
So if the equation is 5y+2x-z and the substitutions are x=4 y=-3 z=5 , all you have to do is replace each variable with its given numbers. Like so
5(-3)+2(4)-5
Now what you have to do is simplify
Negative times a positive is a negative
Negative times a negative is a positive
Positive times a positive is a positive
So....
-15+8-5
-20+8
-12
This is a simple substitution problem. Remember the basics of negatives and positives! Than you will be just fine! :D
The variables y and x have a proportional relationship, and y = 15 when x = 3.
What is the value of x when y = 4?
Enter your answer in the box.
The variables y and x have a proportional relationship, and y = 9 when x = 2.
What is the value of y when x = 3?
Enter your answer in the box.
Which equation represents a proportional relationship?
y=2(x+13)
y=−3x+2
y=12x
y = 3x
This table shows a proportional relationship.
Complete the equation that represents the table.
Enter your answer as a decimal in the box.
y =
x
x y
−4 −6
−2 −3
0 0
8 12
The graph of a proportional relationship contains the point (−12,3) .
What is the corresponding equation?
Enter your answer as a fraction in simplest form by filling in the boxes.
y = $$
x
I will mark brainlest if someone answers these 5!
Question 1:
What is the value of x when y = 4?
x=0.8
Question 2:
What is the value of y when x = 3?
y = 13.5
Question 3:
Which equation represents a proportional relationship?
y=12x
Question 4:
What is the corresponding equation?
y=1.5x
Question 5:
What is the corresponding equation?
y=1/2x
The answers to each part is mentioned below.
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given are the questions as mentioned.
Direct variation of {y} with {x} means that as {x} increases, the value of {y} increases uniformly with it. Mathematically -{K} = y/x = constant
Scale factor {K} is a dimensionless value that indicates the constant ratio value indicating direct variation.{ 1 } -
The variables y and x have a proportional relationship.Also y = 15 when x = 3.We can write for proportional relationship as : 15/3 = 4/x{x} = (4 x 3)/15 = 4/5
{x} = 4/5
{ 2 } -
The variables y and x have a proportional relationship.Also y = 9 when x = 2.We can write for proportional relationship as : 9/2 = y/3{y} = (9 x 3)/2 = 27/2 = 13.5
{y} = 13.5
{ 3 } -
An equation representing a proportional relationship is of the form -
y = mx + c
So all the equations given represent proportional relationship.
Therefore, the answers to each part is mentioned above.
To solve more questions on scale factor, visit the link below -
brainly.com/question/30215119
#SPJ3
What is the area of this polygon on a coordinate plane?
20 square units
9 square units
3 square units
14 square units
Answer:
i need a picture or something to solve this so...
Step-by-step explanation:
Henry is making a corn grits recipe that calls for 14 cup of corn grits for every 12 cup of water.
How much water will he need if he uses 1 1/2 cups of corn grits?
Answer:
Im not sure right now ill answer back when i know
Step-by-step explanation:
Answer:
3/2 cups
pls give brainliest