Answer:
y+399=218
Step-by-step explanation:
total means added together meaning the outcome would be 218, and then just add y and 399 because they will be added for the total and boom you have an expression.
What is the average of 142 and 110?
Answer:
126
Step-by-step explanation:
pls brainliest thank you
Answer:
126
Step-by-step explanation:
To find the average of any amount of numbers, add them all up and then divide the sum by the count. If you have 2 numbers, you divide by 2. If you have 50, you divide by 50.
Here, find the sum of 142 and 110, then divide by 2.
[tex](142+110)\div2\\252\div2\\126[/tex]
Please help me solve this problem
Answer:
x = 35
Step-by-step explanation:
The sum of all three angles is equal to 180 because they make a straight line which is also called a flat angle
3x - 15 + 2x + 10 + 20 = 180 add like terms
5x + 15 = 180 subtract 15 from both sides
5x = 165 divide both sides by 5
x = 33
use distributive property to find (45×51
)
The value of the expression (45 * 51) is 2295
How to distribute the expression?The expression is given as:
(45 * 51)
Factorize each factor in the expression
(45 * 51) = (3 * 15 * 3 * 17)
Factor out 3 in the expression
(45 * 51) = 3 * 3 * (15 * 17)
Evaluate the product
(45 * 51) = 2295
Hence, the value of the expression (45 * 51) is 2295
Read more about distributive property at:
https://brainly.com/question/265762
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which of these is a function A-(-3, -1), (-3, 3), (-3, 5) B-(-3, -1), (5, -1), (5, -3) C(-1, -3), (3, -3), (5, -3) D-(-1, 3), (01, 5), (5, -3)
Answer:
its b
Step-by-step explanation:
the fraction is 3,5 so u should put (3,5) and u well get ur answer
Antoine bought a dozen bagels for $7.80. What is the unit price?
Answer:
$0.65
Step-by-step explanation:
you will divide the 12 into 7.80=7.80/12
Find the equation of the line in slope-intercept form that passes through the points (-2,-4) and (-3,2).
Answer:
[tex]y=-6x-16[/tex]
Step-by-step explanation:
Slope intercept formula: [tex]y=mx+b[/tex]
Slope
Using two points formula: [tex]\boxed{\frac{y_2-y_1}{x_2-x_1}}[/tex]
Plug the points in and solve: [tex]\frac{2-(-4)}{-3-(-2)}[/tex]
[tex]=\frac{6}{-1}[/tex]
[tex]=-6[/tex]
m = -6
y-intercept
Plugin one point into the slope-intercept formula with the slope, and solve: (-2, -4)
[tex]-4=-2(-6)+b[/tex]
Simplify [tex]-4=12+b[/tex]
Subtract 12 from both sides: [tex]-4-12=12+b-12[/tex]
[tex]=16[/tex]
b = -16
Therefore, the equation is [tex]\bold{y=-6x-16}[/tex]
Find the solution of the system of equations using linear combonation .-7x-7y=28 and 2x-7y=21
Answer:
x+y+4=0 and 2x-7y-21=0Step-by-step explanation:
-7x-7y=28 {move the constant to the left-hand side and change its sign}
↓
-7x-7y-28=0 {Divide both sides of the equation by -7}
↓
x+y+4=0 ← answer
--------------------------------------------------------------------------------------------------------------
2x-7y=21 {move the constant to the left-hand side by adding its opposite to both sides}
↓
2x-7y-21=21-21 {the sum of two opposites equals 0}
↓
2x-7y-21=0
↓
2x-7y-21=0 ← answer
Angie runs 7 mph for the first half of a marathon, 13.1
miles, but twists her knee and must walk 2 mph for the
second half. What was her average speed? Round to 2
decimal places.
Answer:
Step-by-step explanation:
For the first half of the Marathon, we need to find the time.
t = d/r
r = 7 mph
d = 13.1
t = 13.1 / 7
t = 1.87 hours.
For the second half of the Marathon we need the time as well.
t = d/r
r = 2 mph
d = 13.1
t = 13.1 / 2
t = 6.55 hours.
Now to find the average speed, you will need the total time and the total distance
Total distance = 13.1 + 13.1 = 26.2 miles
Total time = t1 + t2
Total time = 1.87 hours + 6.55 hours.
Total time = 8.42
average speed = Total Distance / total time
average speed = 26.2 / 8.42 = 3.11 miles per hour
stressing out over this
Answer:
Is this multi-choice? all but C are correct.
Step-by-step explanation:
the small two is 'to the power of two' so that number times itself once.
-3x-3 is 9
-2x-2 is 4
-1x-1 is 1 (less than two)
-4x-4 is 16
can someone please help me omg (elimination method)
5x = y + 6
5x + 2y = 3
Answer:
The solution is (1, -1)
Step-by-step explanation:
Rearrange the first equation so it is in standard form just like the second equation. To do this, subtract y from both sides.
5x = y + 6
-y -y
rewrite the equations
5x - y = 6
5x + 2y = 3
You have two choices of which variable ( x or y) you can eliminate. Regardless of choice you have to multiply one of the equations by a number. What you really want to look for is a set of twins, meaning you have the same number and the same variable. Also one has to be negative and one has to be positive. Both equations have a 5x, so I need to make one negative by multiplying the entire equation by -1. I'll do that with the top equation. This just changes the signs of each term.
-1(5x - y = 6)
-5x + y = -6
5x + 2y = 3
Add the two equations and solve for y. The -5x and 5x will now be eliminated. Remember there is a 1 in front of the y.
3y = -3
3y/3 = -3/3
y = -1
Now solve for x. Pick either of the original equations to substitute in for y. I'm going to pick the first one.
5x = y + 6
5x = -1 + 6
5x = 5
5x/5 = 5/5
x = 1
The solution is (1, -1)
Which equation represents a line that passes through (4,1/3) and has a slope of 3/4
Answer:
y = 3/4x - 8/3
Step-by-step explanation:
Slope m = 3/4 passes through (4,1/3)
y = mx + b
1/3 = 3/4(4) + b
b = 1/3 - 3 = 1/3 - 9/3 = -8/3
so y = 3/4x - 8/3
What is the midpoint of diagonal RB
Answer:
The midpoint is (1, 4.5)
Step-by-step explanation:
To find the midpoint, take the coordinates for the two endpoints and add the x's and divide by two. Then add the y's and divide by two. R has coordinates (-4,0) and B is (6,9). On this particular question when we just do half of the problem we can pick out the correct answer from the multiple choice list. -4 + 6 is 2. And divided by 2 is
2/2 is 1 there is only one choice that has an x that is 1. It doesn't hurt, nor take much time to confirm with the y's. 0+9 is 9. And 9/2 is 4.5.
So the midpoint is (1, 4.5)
what rational number lies between the square root of 2 and the square root of 5
Please help i will give brainlyiest
Answer:
The bottom left
Step-by-step explanation:
The bottom left has the correct side shaded and includes a dotted line
Which equation is true if p = 3.4?
Answer:
3p=10.2.
Step-by-step explanation:
if p=3.4. 3p=10.2. because you multiply whatever number by what p=.
Find the area of the rectangle.
Answer:
2 in.
Step-by-step explanation:
find the area of the shap below
Answer:
396cm²
Step-by-step explanation:
hope this helps
Answer:
70
Step-by-step explanation:
because you add 10 plus 9 and that gets 19 and you add 27 plus 24 and that gets 51 and you add 51 plus 19 and you get 70
A store owner sells soda in cases of cans and in bottles.
One case of soda contains 24 cans and costs $8.64.
Each can in the case contains 12 ounces of soda.
One bottle of soda costs $1.60 and contains 32 ounces.
What is the difference in cost between 1 ounce of soda in a bottle and 1 ounce of soda in a can?
Answer:
Step-by-step explanation:
so for the cans 24*12=288
288/8.64 = cost per ounce for canned
288/8.64=33.3333333 or 33 and 1/3 cents (1/3 of a dollar)
for the bottles we know 32 ounces cost 1.60
31/1.60 = cost per ounce for bottle
31/1.6=19.375 cents (3/8 of a dollar)
8/24 of a dollar for cans and 9/24 of a dollar for bottled
the difference is 1/24 of a dollar, aka 4.16 cents
Brent lost 40 pounds. Before his diet he weighed
240 pounds. What is the percent of change?
Answer:
16.6%
Step-by-step explanation:
40/240=0.166
0.166 x 100= 16.6
Find the integral:
∫−20(x+5)dx
Answer:
[tex]-20\left(\frac{x^2}{2}+5x\right)+C[/tex]
Step-by-step explanation:
[tex]\int \:-20\left(x+5\right)dx[/tex]
[tex]\mathrm{Take\:the\:constant\:out}:\quad \int a\cdot f\left(x\right)dx=a\cdot \int f\left(x\right)dx[/tex]
[tex]-20\cdot \int \:x+5dx[/tex]
[tex]\mathrm{Apply\:the\:Sum\:Rule}:\quad \int f\left(x\right)\pm g\left(x\right)dx=\int f\left(x\right)dx\pm \int g\left(x\right)dx[/tex]
[tex]-20\left(\int \:xdx+\int \:5dx\right)[/tex]
[tex]=-20\left(\frac{x^2}{2}+5x\right)[/tex]
[tex]\mathrm{Add\:a\:constant\:to\:the\:solution}[/tex]
[tex]=-20\left(\frac{x^2}{2}+5x\right)+C[/tex]
3-x=-4 does anyone know the answer
I need help with this please
it is the last one im pretty sure
6+(-1)=???? Pls gimme answer!
Answer:
5 because that what I got on phot math
Answer: 5
Step-by-step explanation:
6+(-1)
two different signs so this is equal to 6-1
What is the equation in slope-intercept form for
the line that passes through the point (8,-3) and
has a y-intercept of -2?
A y=- 8x - 2
B. y = -x-2
c. y = –2x - 32
D. y = -2x - 8
Answer:
y = -1/8x - 2
Step-by-step explanation:
y-intercept of -2 means (0,-2)
Given (0,-2) and (8,-3)
Slope m = (y2-y1)/(x2-x1)
m = (-3 - -2)/(8 - 0) = -1/8
Using (8,-3)
y = mx + b
-3 = -1/8(8) + b
-3 = -1 + b
b = -2
then y = -1/8x - 2
Solve for x: 3(x−4)=12x
x = [?] write your answer in fraction form with no spaces
plzzz help meeee
A bakery sells 2 lemon poppy muffins for every 5 bran muffins sold. Which table represents the relationship between lemon poppy and bran muffins?
Answer:
We need the tables for this answer??
What does X = (Really need help)
Answer:
so where the x is right now there is a right angle which has a 90 degree angle
Step-by-step explanation:
pls mark brainliest
pls and ty
<3 anmol
f(x) = 4(x+6)2-3
parabola; vertical stretch:4, horizontal translation right 3, vertical translation down 6.
3
parabola; vertical stretch:4, horizontal translation left 3, vertical translation up 6.
parabola; vertical stretch:4, horizontal translation left 6, vertical translation down 3.
4
parabola; vertical stretch:4, horizontal translation right 6, vertical translation down 3.
Answer:
C. parabola; vertical stretch:4, horizontal translation left 6, vertical translation down 3.Step-by-step explanation:
Given parabola:
f(x) = 4(x + 6)² - 3Its transformations from the parent function g(x) = x² are:
f(x) = 4*g(x + 6) - 34 - is a vertical stretch, 6 - is a horizontal shift left, - 3 - is a vertical shift downCorrect choice is C
Hello HELLLLPPPP!!!! ME
Answer:
A [-1,∞)
Step-by-step explanation:
The previous explanation of range applies for this as well
Simplify (x-y)^2+(x^2+2xy+y^2)
