Answer:
The value of -18x + 30y is -27
Step-by-step explanation:
Algebraic Expressions
It's given that:
6x - 10y = 9
We are required to find the value of
-18x + 30y
The easiest way to solve the problem is to visualize that:
-18x = -3(6x)
30y = -3(-10y)
This means that the second expression is equal to the first expression multiplied by -3, thus:
-18x + 30y = -3(6x - 10y) = -3*9 = -27
The value of -18x + 30y is -27
2.
Jim says, "When you subtract a number from 10, the answer will always be less than 10"
(a)
Is Jim correct? You must give a reason with you answer.
I believe that he is not correct. By him saying a number hes saying 10-5=5 but you could also do 10-0=10 so he is not correct.
Yes. Jim is correct. because a number he saying is 10-5=5 but it could also be 10-0=10.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables. A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be one degree.
We have given that Jim stated, "When you subtract a number from 10, the answer will always be less than 10"
let's consider an example and say 2 is the number.
If we subtract 2 from ten, then we get 8 which is less than 10.
Therefore, if the number is greater than ten it would result in a number which less than ten
Due to this it would result in a negative number.
Hence Yes. Jim is correct. because a number he saying is 10-5=5 but it could also be 10-0=10.
Learn more about equations here;
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4m − –3m − 17m − –m − –7m = 12 (:
Step-by-step explanation:
[tex]\tt{ 4m-(-3m)-17m-(-m)-(-7m)=12 }[/tex] ⠀
[tex]\tt{ 4m+3m-17m+m+7m=12 }[/tex] ⠀
[tex]\tt{ 15m-17m=12 }[/tex] ⠀
[tex]\tt{ -2m=12 }[/tex] ⠀
[tex]\tt{ m=\dfrac{12}{-2}}[/tex] ⠀
[tex]\tt{m=-6 }[/tex] ⠀
Step-by-step explanation:
[tex]4m−(−3m)−17m−(−m)−(−7m)=12\\\\\\4m+3m−17m+m+7m=12\\\\\\15m−17m=12\\\\\\−2m=12\\\\\\m=\dfrac{12}{-2}\\\\\\\bold{m=-6 }[/tex]
For each equation, find a value for x that makes the equation true
Answer:
Shrek is the best
Step-by-step explanation:
Glad you all agree
Nicole split 7/8 pounds of candy among 4 people. What is the unit rate in pounds per person?
Write your answer in simplest form.
Answer:
7/8 : 4 = 7/ ( 8 x 4 )= 7/32
Step-by-step explanation:
Yuki has saved £100 and spends £22 on a present. Rosetta has saved £140 and spends £28 on a present. What percentage has each girl spent on presents?
Answer:
yuki has spent 22 percent , Rosetta spent 20 percent
step by step explanation:
1) if £100=100percent
then £22=x percent
x=(22×100)/100=22 percent
2) if £140=100 percent
then £28= x percent
x=(28×100)/140
x=2800/140
x=20 percent
Is the function y = x - 2/3
linear or nonlinear?
Answer:
linear
Step-by-step explanation:
y = mx + b is equation for linear functions
Eliecel is making lemonade to raise money for a homeless shelter. The recipe says to add 3 tablespoons of sugar and 2 lemons to water to make each pint of lemonade. For the fundraiser, Eliecel needs to make 50 gallons of lemonade. How many tablespoons of sugar and how many lemons will he need to make 50 gallons of lemonade?
Answer:
1200 table spoons and 300 lemons
Step-by-step explanation:
i did the math there's 8pints in one gallon
Can someone please help
Answer:
288in i belive
Step-by-step explanation:
Answer:
inch in foot
1 foot=12 inch
Solve for x.........
Answer:
x = 1 1/5
Step-by-step explanation:
1/3x = 2/5
multiply both sides by 3/1
x = 1 1/5
Hope this helps!!!
A line passes through the point (–6, –3) and has a slope of 2/3 . Which point is on the same line?
Answer:
The point (0, 1) represents the y-intercept.
Hence, the y-intercept (0, 1) is on the same line.
Step-by-step explanation:
We know that the slope-intercept form of the line equation
y = mx+b
where
m is the slopeb is the y-interceptGiven
The point (-6, -3)The slope m = 2/3Using the point-slope form
[tex]y-y_1=m\left(x-x_1\right)[/tex]
where
m is the slope of the line(x₁, y₁) is the pointIn our case:
m = 2/3(x₁, y₁) = (-6, -3)substituting the values m = 2/3 and the point (-6, -3) in the point-slope form
[tex]y-y_1=m\left(x-x_1\right)[/tex]
[tex]y-\left(-3\right)=\frac{2}{3}\left(x-\left(-6\right)\right)[/tex]
[tex]y+3=\frac{2}{3}\left(x+6\right)[/tex]
Subtract 3 from both sides
[tex]y+3-3=\frac{2}{3}\left(x+6\right)-3[/tex]
[tex]y=\frac{2}{3}x+4-3[/tex]
[tex]y=\frac{2}{3}x+1[/tex]
comparing with the slope-intercept form y=mx+b
Here the slope = m = 2/3
Y-intercept b = 1
We know that the value of y-intercept can be determined by setting x = 0, and determining the corresponding value of y.
Given the line
[tex]y=\frac{2}{3}x+1[/tex]
at x = 0, y = 1
Thus, the point (0, 1) represents the y-intercept.
Hence, the y-intercept (0, 1) is on the same line.
The slope of the line y = 2/3x + 5/9 is m = ???
Answer:
m=2/3
function=mx+b
Step-by-step explanation:
The perimeters of the rectangle and triangle shown below are both equal.
Answer:
x=0.4
perimeter of rectangle and perimeter of triangles is 7.6 each
Step-by-step explanation:
2(7x-1.8)+2(4x+1.2)=perimeter of rectangle
6x+0.4+4x+6x+0.08=perimeter of triangle
since the perimeters are equal then
2(7x-1.8)+2(4x+1.2)=6x+0.4+4x+6x+0.8
14x-3.6+8x+2.4=16x+1.2
22x-1.2=16x+1.2
22x-16x-1.2+1.2=16x-16x+1.2+1.2
6x=2.4
x=0.4
1) In 2011, the population of deer in a forest was 650.
a. In 2012, the population increases by 15%. Write an expression, using only multiplication, that represents
the deer population in 2012.
Please help me with #2
Answer:
The answer is B, your welcome
What is the area of a circle that has a diameter of
8 inches?
Answer:
A≈50.27in²
Step-by-step explanation:
What is the answerr
f(x)=3x+2
Answer:
x+2
Step-by-step explanation:
2. What is the minimum value of of the function below
y = 2x2 – 8x + 11
O y=-3
O y = 2
O y = 3
O y = 11
What is the minimum value of of the function below y = 2x2 – 8x + 11 O y=-3 O y = 2 O y = 3 O y = 11
Need Help 100 points
Solve problems
Answer:
m<1
Step-by-step explanation:
r u taking the midterm right now lm.ao
Answer:
55) m∠1 = 122°
56) m∠2 = 58°
57) m∠3 = 69°
58) m∠4 = 111°
59) m∠5 = 58°
60) m∠6 = 53°
61) m∠7 = 69°
62) m∠8 = 58°
63) m∠9 = 53°
64) m∠10 = 69°
65) m∠11 = 58°
66) m∠12 = 122°
67) m∠13 = 111°
68) m∠14 = 69°
69) m∠15 = 53°
70) m∠16 = 58°
71) m∠17 = 122°
72) m∠18 = 122°
73) m∠19 = 58°
Step-by-step explanation:
Question 56 and 67 are already given for you based on the I above. Question 55 is 122° since m∠2 is 58° and you need 180° for a straight line. Assuming that Question 65 and 66 are vertical to each other, it would be the same answer for 55 and 56. Question 57 is 69° based on what is given for m∠13, same goes for Question 68. Question 58 is the same as m∠13 for its angle. Together m∠2 and m∠3 make up 127°, remaining is 53° for m∠6. If z and y are congruent then m∠5 and m∠11 should also be congruent. Because m∠6 and m∠5 are given, m∠7 should be given for you in which they should all make 180°. If line x and m are congruent then m∠18 and m∠19 should be 58° and 122° separately, ∠16 and ∠17 and vice versa. m∠5 and m∠8 should be the same. m∠7 and m∠10 should be the same and you should get the angle for m∠9.
help plz i need help with this please provide an explanation
f(x)=x+3
f(-5) = ?
A-2 B-1 C-8 D7
Answer:
A. -2
Step-by-step explanation:
f(x) is x+3.
When they add the number into the x part of f(x) they're just telling you to put that in for the equation
Since in this situation it's -5, all you have to do is add 3 to -5, which will result in -2.
:) hope this helps
Which ordered pair is on the graph of the function?THIS IS A TEST SO PLS ANSWER IT CORRECT
Find the value of x.
Help
Answer:
I have made it in above pic 1st by finding whole angle and then ans
-6j^-8 over -2(j^3)^5
Answer:
[tex] 3j^7 [/tex]
Step-by-step explanation:
[tex] \dfrac{-6j^{-8}}{-2(j^{-3})^5} = [/tex]
[tex] = \dfrac{-6j^{-8}}{-2j^{-15}} [/tex]
[tex] = 3j^{-8 - (-15)} [/tex]
[tex] = 3j^7 [/tex]
What is the slope of a line perpendicular to the line y = - 1/4 - 1
Answer:
the equation is in the form y=mx+b
so y=(1/4)x -10
Step-by-step explanation:
⚠️Warning answer fast⚠️
What is the volume of this rectangular pyramid-length 4,width 3, and height 4?
Answer:
I think your answer is 48cm
Step-by-step explanation:
Evaluate
- 2x - 6y when x = 5, y=-3
Answer:
-28 i think
extra words so i can submit
hi good night all :) ✨
[tex] \orange{\boxed{ 1.}} \: \tt \frac{2}{8} \times 5 = [/tex]
-
-
[tex] \tt 2 + 5 + 0 - 6 = [/tex]
-
-
[Ardhito Pramono & Aurelie Moeremans - I Just Couldn't Save You Tonight] ♪
Answer:
Hello good morning
Step-by-step explanation:
Answer:
2/8×5=10/8=5/4
Step-by-step explanation:
2+5+0-6=7-6=1
help this is over a lot of points and if you get this correct I will give you brainly of course
Answer:
First option is the correct answer
Step-by-step explanation:
Speed of car = 450/9 = 50 mph
Speed of Bus = 510/12 = 42.5 mph
Speed of train= 300/8 = 37.5 mph
So,
The car has the fastest speed at 50 miles per hour.
PLEASE HELP QUICKLY. I NEED HELP!
Answer:
4√5
Step-by-step explanation:
c = √a² + b²
c = √4² + 8²
c = √(16 + 64)
c = √80
c = 8.94427 (rounded to nearest 1/100000)
c = 4√5
2. Use proportions to show whether the polygons ABCDE and PQRST are similar. Explain your answer.
The given polygons are not similar.
What is a polygon? What is a mathematical equation and expression?In geometry, a polygon is a plane figure that is described by a finite number of straight line segments connected to form a closed polygonal chain. The bounded plane region, the bounding circuit, or the two together, may be called a polygon. The segments of a polygonal circuit are called its edges or sides.A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.Given are two polygons which are similar.
For the polygons to be similar, we can write -
AB/PQ = BC/QR = CD/RS = DE/ST = AE/PT
4/8 = 3/6 = 7/15 = 10/10 = 5/10
1/2 = 1/2 ≠ 7/15 ≠ 1 ≠ 1/2
Therefore, the given polygons are not similar.
To solve more questions on 2 -D figures, visit the link below -
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