Answer: -1x-10
Step-by-step explanation: Good luck! :D
Molly buys two boxes of crackers each box has four packages of crackers in it Molly by the total of 80 crackers which equation and answer shows the number of crackers in each package
Answer:
80/8=10
Step-by-step explanation:
Simplify the expression:
7(–3 + r) =
Answer:
-21+7r
Step-by-step explanation:
______________________________
1.) Use distributive property:[tex]7[/tex] × [tex]-3=-21[/tex][tex]7[/tex] × [tex]r=7r[/tex]- We do distributive property because we see parenthesis with a number/variable outside of the parenthesis.
______________________________
What is the equation of the line whose slope is 20 and a y-intercept of 5
A.y = 20 + 5x
B.y = 20x + 5
C.20x + y = 5
D.5x + y = 20
Joe bought a television that was on sale for 20% off. He paid $160.00 for it. What was the original price?
How much is $1250 worth at the end of 3 year, if the interest rate of 6.5% is compounded weekly?
The amount after 3 years will be $ 1509.9.
To learn more, check below explanation.
Compound interest:If the amount P is invested at the rate of r% for n years.
Then, the amount after n years is computed as;
Given that, Principal = 1250 , r = 6.5% and n = 3 years.
[tex]A=P(1+\frac{r}{100} )^{n}\\ \\A=1250(1+\frac{6.5}{100} )^{3} \\\\A=1250*(\frac{106.6}{100} )^{3}\\ \\A=\$ 1509.9[/tex]
Hence, the amount after 3 years will be $ 1509.9
Learn more about the compound interest here:
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A line passes through the point (-4, -2) and has a slope of -5/2. Write an equation in slope- intercept form for this line.
Answer:
y = -⁵/₂x - 12Step-by-step explanation:
The point-slope form of the equation is y - y₀ = m(x - x₀), where (x₀, y₀) is any point the line passes through and m is the slope:
m = -⁵/₂
(-4, -2) ⇒ x₀ = -4, y₀ = -2
The point-slope form of the equation:
y + 2 = -⁵/₂(x + 4)
So:
y + 2 = -⁵/₂x - 10 {subtract 2 from both sides}
y = -⁵/₂x - 12 ← the slope-intercept form of the equation
The graph shows the relationship between the number of pounds of pears purchased and the total cost of pears.
Answer: $1.75
Step-by-step explanation:
A bicycle wheel has a circumference of 38 inches . What is the approximate length of the radius of the wheel
What is the value of h in the figure
below?
Answer:
13
Step-by-step explanation:
the top angle is 45°, and then there is the 90° angle, so the other angle must also be 45°. this makes it a right isosceles triangle, so both legs must be equal (they are both 13)
help me with my math please
Answer:
First, let's do a fast definition of a function.
A function is a relation that maps elements from a given set (the domain, is the set of the inputs, usually represented with the variable x) into elements of another set (the range, which is the set of the outputs, usually represented with the variable y)
The functions can map each element of the domain into only one output.
Now, let's solve the problem:
For the vertical table, we can see that the values of x are:
{1, 2, 3} This is the domain.
And the values of y are:
{4, 6, 8} This is the range.
This relation represents a function.
For the horizontal table, we can see that:
The inputs are:
{4, 5} (notice that the 4 is two times there) This is the domain.
And the outputs are:
{2, 3, 4} This is the range.
Here we can see that this relationship maps the input "4" into two different outputs, then this is not a function.
2) We want to know if the graph represents a function.
The first thing we can see is that if we draw a vertical line in some places, the line will touch the graph at two different points. This means that one single value of x can be mapped into two different values of y.
And as we already said, a function maps each input into only one output, then the graph does not represent a function.
A shop will sell a mixture of almonds and cashews. Almonds cost $2.50 per pound and cashews cost $3.25 per pound. The shop will make 80 pounds of the mixture and sell it for $2.95 per pound. How many pounds of almonds should they use?
Answer:
32 pounds of almonds
Step-by-step explanation:
Let the number of pounds of almond be a while that of cashews be c
we want to make a total of 80 pounds
Thus;
a + c = 80 ••••••••(i)
Furthermore;
Let us work with the costs
Costs of a pounds of almonds will be ;
a * 2.5 = 2.5a
cost of c pounds of cashews
c * 3.25 = 3.25c
Total cost at which they sell will be 80 * 2.95 = 236
Thus;
3.25c + 2.5a = 236 •••••(ii)
From i, c = 80-a
Put this into ii
3.25(80-a) + 2.5a = 236
260-3.25a + 2.5a = 236
0.75a= 24
a = 24/0.75
a = 32
Find the length of each segment write your answer in simplest radical form. I NEED HELP ASAP
Answer:
1. 5
2. [tex]\sqrt{85}[/tex]
3. [tex]\sqrt{26}[/tex]
Step-by-step explanation:
1. just count the units: 5 units
2. Find the slope = rise/run = -7/6
you now have a right triangle, one side is 7 units (from the rise), and the other is 6 units (from the run)
use the pythagorean theorem to find the hypotenuse.
[tex]a^{2} +b^{2} =c^{2}[/tex]
[tex]7^{2} + 6^{2} = c^{2}[/tex]
49 + 36 = [tex]c^{2}[/tex]
85 = [tex]c^{2}[/tex]
[tex]\sqrt{85} = \sqrt{ c^{2}[/tex]
[tex]\sqrt{85} = c[/tex]
Simplify the radical, but [tex]\sqrt{85}[/tex] is farthest that it can go, so that is the answer.
3. same process as 2
slope = -1/5
[tex]1^{2} + 5^{2} = c^{2}[/tex]
1 + 25 = [tex]c^{2}[/tex]
26 = [tex]c^{2}[/tex]
[tex]\sqrt{26} = c[/tex]
That is the farthest it can go, so that will be the answer.
What's 80 to the power of 1
Answer:
Step-by-step explanation:
What is the area where if this figurine ?ixl question
Answer:
The area of the figure is 97 square inches
Step-by-step explanation:
In the given figure
To find the area of the figure we can find the area of the big rectangle with dimensions 7 inches and 19 inches and subtract from it the area of the small rectangle with dimensions 4 inches and 9 inches
∵ The area o the rectangle = length × width
∵ The dimensions of the big rectangle are 7 inches and 19 inches
∴ The width = 7 inches
∴ The length = 19 inches
→ Substitute them in the rule of the area above
∵ The area of the big rectangle = 19 × 7
∴ The area of the big rectangle = 133 inches²
∵ The dimensions of the small rectangle are 4 inches and 9 inches
∴ The width = 4 inches
∴ The length = 9 inches
→ Substitute them in the rule of the area above
∵ The area of the small rectangle = 9 × 4
∴ The area of the small rectangle = 36 inches²
→ Subtract the area of the small rectangle from the area of the big
rectangle to get the area of the green figure
∵ The area of the figure = the big area - the small area
∴ The area of the figure = 133 - 36
∴ The area of the figure = 97 inches²
∴ The area of the figure is 97 square inches
if w=-4, which inequality is true
Option Answers:
2-w<-3
-3- 5w < -14
1- 2w > 13
-5 - 4w >10
Step-by-step explanation:
the answer would be the last one
cuz if u do -4(-4) it equals 20
and if u do -5+20 it equals 15
and 15>10
Answer:
The inequality -5 - 4w > 10 is the TRUE option.
Step-by-step explanation:
Given
w = -4
To determine
We have to determine which inequality is true
Let us substitute w = -4 one by one in all the inequalities
2 - w < -3
substitute w = -4
2 - (-4) < -3
2+4 < -3
6 < -3
FALSE!
Reason: 6 can not be less than -3
-3 - 5w < -14
substitute w = -4
-3 - 5(-4) < -14
-3 + 20 < -14
17 < -14
FALSE!
Reason: 17 can not be less than -14
1- 2w > 13
substitute w = -4
1 - 2(-4) > 13
1+8 > 13
9 > 13
FALSE!
Reason: 9 can not be greater than 13
-5 - 4w > 10
substitute w = -4
-5 - 4(-4) > 10
-5 + 16 > 10
11 > 10
TRUE!
Reason: 11 is indeed greater than 10.
Thus, the inequality -5 - 4w > 10 is the TRUE option.
target sells tide detergent for $6.75 for 25 fluid ounces. walmart sells tide dergernt for $11.20 for 40 fl.oz. use the unit rate to determine which is a better buy
Step-by-step explanation:
the cost per ounce at target would be .2688 and the cost per ounce ot walmart would be .28 so target would be the better buy.
The Department of Transportation wants to extend the intersecting road across the highway, as indicated by the dotted line.
intersecting
road
A
55
highway
new construction
What should be to ensure that the intersecting road and the new construction form a straight line?
ОА
35°
OB
55°
OC
105°
OD
125°
Answer:
highway new ... intersection road and the new construction for in a straight line! 35. 0 55. C105.
Step-by-step explanation:
Make w the subject of t = 7W + 3
Answer:
w = (t - 3)/7
Step-by-step explanation:
..............
36 flowers in 4 vases = flowers per vase?
Answer:
9 flowers per vase
Step-by-step explanation:
36 divided by 4 is 9
can i get brainliest plz
Which linear function is represented by a graph with y-intercept of - 1/6
X/2 greater than equal to 10
For x/2 to be greater than or equal to 10, you must try out a few numbers.
If x = 20...
x/2 greater than or equal to 10
= 20/2 greater than or equal to 10
= 10 greater than or equal to 10.
So the answer for x is:
x = 20 or more
Hope this helps!!!
Determine whether the function f(x) = 8(0.61)^x shows exponential growth or decay
Line AB passes through the points A(-1, -2) and B(3, 8) Would AB be parallel to a line whose slope is equal to 3? Justify your answer.
Answer:
Not parallel.
Step-by-step explanation:
It would be parallel if its slope is also 3.
Calculate slope of line AB = y2 - y1 / x2 - x1
8 - (-2) / 3 - (-1) =
8 + 2 / 3 + 1 = 10/4 = 2.5
2.5 =/= 3, it wouldn't be parallel.
The line AB passing through the points A(- 1, - 2) and B(3, 8) is not parallel to a line having a slope of 3.
What are lines and their slopes?We know lines have various types of equations, the general type is
Ax + By + c = 0, and the equation of a line in slope-intercept form is
y = mx + b.
Where slope = m and b = y-intercept.
the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.
Given, Line AB passes through the points A(-1, -2) and B(3, 8).
We know lines parallel to each other have the same slope.
Therefore, The line passes through the points A(-1, -2) and B(3, 8).
Slope(m) = (8 + 1)/(3 + 1).
Slope(m) = 9/4.
So, The AB is not parallel to a line having a slope of 3.
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Find the unknown value .
45%=54/⬛️
Answer:
12
Step-by-step explanation:
54/12=4.5 then move the decimal once
Find the height and the area of rectangle if the perimeter is 38.4 inches and the base is 15 inches
Answer:
1) 4.2 inches
2) 63 inches²
Step-by-step explanation:
If the base is 15 inches, we can assume that the opposite side is also 15 inches. 15 + 15 = 30. If we subtract 30 from the total perimeter, we will have the sum of the last two sides.
38.4 - 30 = 8.4
Now that we have the sum we can now find the exact length with division:
8.4/2 = 4.2 inches
To find the area, we multiply these together.
4.2 * 15 = 63
Find a rational number between and 9/10 and 1
Answer:
1 is the answer
Step-by-step explanation:
Whoever gives me a good answer i'll mark them brainlest
Answer:
Please check the attached graph.
Step-by-step explanation:
The slope-intercept form of the line equation
[tex]y = mx+b[/tex]
where
m is the slopeb is the y-interceptGiven the equation
[tex]y = 4x[/tex]
Here:
x represents the distance x the tortoise 'runs' in miles for y miles the hare runs.
comparing with the slope-intercept form of the line equation
The slope m = 4The y-intercept b = 0The graph of the function is attached below.
As the hare runs 16 miles, so
y = 16 miles
so substitute y = 16 in the equation
y = 4x
16 = 4x
switch sides
4x = 16
divide both sides by 4
4x/4 = 16/4
x = 4
Therefore, when the hare runs 16 miles, the tortoise will run only 4 miles.
Please check the attached graph.
Max has mowed 80% of his lawn. The lawn is 225 yards. How many yards of the lawn did Max mow?
Answer:
180 yards.
Step-by-step explanation:
80% of 225 = 180.
Answer:
Max mowed 180 Yards
Step-by-step explanation:
80 percent of 225 is 180
. Determine whether the system of equations has one solution, no solution, or infinitely many solutions.
y = -4x + 2 and y = -4x + 2 *
Answer:
It is clear that both equations are identical. Hence, the solution to the system of equations would contain infinitely many solutions.
Step-by-step explanation:
Given the system of equations
y = -4x + 2
y = -4x + 2
It is clear that both equations are identical. We know that when the system of equations is identical, then the system of equations will have infinitely many solutions.
Hence the given system of equations would contain infinitely many solutions.
solving the system of equations
[tex]\begin{bmatrix}y=-4x+2\\ y=-4x+2\end{bmatrix}[/tex]
Substitute y = -4x+2
[tex]\begin{bmatrix}-4x+2=-4x+2\end{bmatrix}[/tex]
For y = -4x+2
Express y in terms of x
[tex]y=-4x+2[/tex]
Thus, the solution to the system of equations would be:
[tex]y=-4x+2,\:x=x[/tex]
It is clear that x = x is true no matter what. Hence, the solution to the system of equations would contain infinitely many solutions.
CAN SOMEONE DO MY KHAN ACADEMY FOR ME AND HELP ME WITH THIS QUESTION?
Answer:
The answer is C
Step-by-step explanation:
Answer:
most likely to me is a best option
Step-by-step explanation:
1/4 multiply 20 like a fraction like this 20/1 then multiply numerator and denominator or (top and bottem) which then gives you 20 /5
simplify it you get 4
