Answer:
0%
Step-by-step explanation:
Step one:
given data
A contractor purchases 5 dozen pairs of padded work gloves for $71.40
the unit price will be
total number of gloves
5 pairs
unit cost per glove
=71.40/5
=$14.28 per glove
The estimated cost per pair is
$14.28 per pair
The error is
%Error= real price -estimated /estimated*100
%Error= 14.28-14.28/14.28*100
%Error= 0.0*100
%Error= 0%
Find the missing angle:
100° 29°
?
A. 60 degrees
B. 55 degrees
C. 51 degrees
D. 90 degrees
Answer:
c. 51 degrees is the missing angle.
hector solves 9 x 8 by subtracting 1/8 from 10/8
^70 POINTS
can someone help me with this i rlly need it
The length of a rectangle is 1 inch less than twice its width, and its perimeter is 40 inches. Find the width of the rectangle.
7 in.
13 in.
14 in.
If the second equation is multiplied by 5 and then the equations are added, the result is _____.
x + 5y = 3
2x - y = -2
9x = 13
11x = -7
9x = -7
For the following system, use the second equation to make a substitution for x in the first equation.
x + 3y = 5
x + 7 = 2y
What is the resulting equation?
2y + 2x + 3y = 5
2y + 7 + 3y = 5
2y - 7 + 3y = 5
Graph the following system of equations. Click on the graph until the correct one appears.
y > -x + 1
y ≤ 2x - 3
Find A B if A = {3, 6, 9, 12} and B = {2, 4, 6, 8, 10}.
{6}
{2, 3, 4, 6, 8, 9, 10, 12}
Choose the correct mathematical translation for the given statement.
She is at most twenty years old.
x 20
x ≥ 20
Answer:
1) 7 in
2) 11x=-7
3)2y - 7 + 3y = 5
4) i DONT'KNOWN
Step-by-step explanation:
1)
step 1
the length of the rectangle is 1 inch less than twice its width ( in other words , you have to subtract 1 to twice the width to get the length)
Let
L represents the length
W represent the width
Hence
Twice width= 2w
Now , replace
L=2w-1 equation (1)
Also
The perimeter =40 inches
[tex]perimeter= 2(L+W) 40=2(L+W) equation (2)[/tex]
Step 2
Solve for w
Replace equation (1) in equation (2)
[tex]40=2(L+W) equation (2)\\40=2((2W-1)+W)\\40=2(3W-1)\\40=6W-2\\Add 2 in both sides\\40+2=6W-2+2\\42=6W\\Divide both sides by 6\\\frac{42}{6}=\frac{6W}{6} \\7=W[/tex]
so ,the width is 7 in.
2) Given the equations
[tex]x+5y=3\\2x-y=-2[/tex]
The first step is to multiply the second equation by 5 (both sides of the equation)
[tex]5(2x-y=-2)\\5(2x-y)=5.(-2)\\5.2x-5.y=-10\\10x-5y=-10\\[/tex]
Next is to add both equations
x+5=3 +10x-5y=-10 = 11x+0y=-7
The result is 11x=-7
3)[tex]x+3y=5\\x+7=2y[/tex]
To make a substitution for x using the second equation in the first equation you :
1. solve for x the second equation
Subtract 7 in both sides of the equation:
[tex]x+7-7=2y-7\\x=2y-7\\[/tex]
2.Substitute the x in the first equation for the value of x you get in step 1 :
[tex]2y-7+3y=5[/tex]
PLEASE MARK ME AS BRAINLIEST
The graph on the right shows two cyclists' journeys.
the coordinates a) Which cyclist had the highest maximum speed?
b) Find the difference in the speeds of the cyclists
during the first 15 minutes of their journeys.
What is the product?
(6r-1)(-8r-3)
Answer:
− 4 8 ² − 1 0 + 3
Step-by-step explanation:
the first one
6. In a class 85% of the students were present on a
certain day. If there were only 34 students present
on that day, how many students were absent on that
day?
Answer:
I think it's 6 kids absent
Step-by-step explanation:
Hope this helps
Nancy and bill collect coins. Nancy has x coins. Bill has 9 coins fewer than 5 times the number of coins Nancy has. Write and simplify an expression for the total number of coins Nancy and Bill have.
Answer:
nicee cat
Step-by-step explanation:
Someone plz help me I will give brainliest
Help please due now
Answer:
hii here is your answer
A graph of f(x) = 10x2 – 11x – 6 is shown on the coordinate grid. What are the zeros of f(x)?
Answer:
-2/5 and 3/2
this is the answer for your question i probably send it to late for your answer but i hope it helps
Hurry plzzz
How many solutions does this system have?
12x-4y--8
y-3x+ 2
O one
O two
O
an infinite number
no solution
Step-by-step explanation:
12x-4y=-8y=3x+212x-4(3x+2)=-812x-12x-8=-8
0=0
I think,no solution
☆15 points☆ select all that apply!
What is 35% of 220? A. .77 B. 7.7 C. 77 D. 770
Answer:
77
Step-by-step explanation:
35% of 220 is equivalent to 77.
What is function?A function is a relation between a dependent and independent variable.
Mathematically, we can write → y = f(x) = ax + b.
Given is to find 35% of 220.
Let 35% of 220 be {x}. Then, we can write -
{x} = 35/100 x 220
{x} = 35/10 x 22
{x} = 35 x 2.2
{x} = 77
Therefore, 35% of 220 is equivalent to 77.
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400
?
700
700
600
what is the value of c
Answer:
300?
Step-by-step explanation:
Write down two factors of 18
Answer:
Any two factors of 18 2 ,3
Which expression is NOT equivalent to 2m 3 +4?
A. 4 + 2m
B. 3m2+4
C. 2(m+2)
D. m+m2+3+1
Answer:
I believe the answer is B,
explanation:
Well, the others are exactly alike, the first answer is just the two numbers flipped, the third is where multiplication is needed, so (2 x m^3) + (2 x 2) = 2m^3 + 4. and the final one is m^3 plus itself which equals to 2m^3 + 4.
y = -4x + 14
Can you help me
PLEASE HELP ME!!
____________________________________________________
Government agencies keep data about the income distribution of the population. The Aoki family and Alexander family live in a country with 11,000 families. The Aoki family's income is at the 56th percentile. The Alexander family's income is at the 78th percentile.
See image down below for the 2 questions and answer choices.
Pleeeaaase help mee soooon!!! Thank you!!!!!!!!!
Answer:
earns 56% of families in country
Answer:
(a) Both the Aoki family and the Alexander Family earn more than the median income(b) The Aoki family earns about 56% of the highest income in the countryStep-by-step explanation:
56th percentile and 78th percentile are both above the 50%
For the first question the answer is B, both the families earn more than half of the population.
For the second question the answer is C, the Aoki family is at 56th percentile, which means its position is top 56%, not more or less
The expression 8 + 2x can be written as _____.
4(2 + x)
2(4 + x)
2(4 + 2x)
Answer: 2(4 + x)
Step-by-step explanation:
i just multiplied across the parentheses. we can rule out the first option, because it would multiply out to be 8 + 4x.
the second option is the one that i calculated second, so i knew that i could rule out the last one my default.
just for kicks, if we multiplied the third option, it would come out to 8 + 4x.
Kayla thinks that the slope of a vertical line is undefined, while Joshua argues that the slope of a vertical line is zero. Who is correct?
Answer:
Kayla
Step-by-step explanation:
Vertical lines are always undefined because if your answer has to be divided by zero, the answer is an undefined operation.
Horizontal lines always have the slope of zero!
Rewrite the following polynomial in standard form.
-x^2-10+x^3
Answer:
37
Step-by-step explanation:
Solve each question using elimination
-4x-2y=-12
4x+8y=-24
Answer:
(3,6) or x= 3 and y= 6
(-6,-3) or x= -6 and y= -3
Which graph represents an exponential function?
Answer:
b
Step-by-step explanation:
The second graph, which represents Table B, represents an exponential function.
What is an exponential function?Mathematical functions with exponents include exponential functions. f(x) = bˣ, where b > 0 and b 1, is a fundamental exponential function.
Let table A represents the first graph.
x: 0, -1, 1, 2, -2, 3, -3.
y: 0, -1, -1, -4, -4, -6, -6.
And table B represents the second graph.
x:-4, -3,-2.75, -2.
y: 2, 4, 6, 10
To determine which graph represents an exponential function, we need to recall the properties of exponential functions. An exponential function is a function of the form y = a^x, where a is a constant greater than 0 and not equal to 1.
Looking at table A, we can see that the y-values do not appear to follow an exponential pattern. For example, the y-values for x = 1 and x = -1 are both -1, but the y-value for x = 2 is -4. This is not consistent with the pattern of an exponential function.
Looking at table B, we can see that the y-values do appear to follow an exponential pattern. The y-values increase rapidly as x increases, which is consistent with the pattern of an exponential function. To confirm this, we can calculate the ratio of consecutive y-values:
For x = -4 and x = -3, y increases by a factor of 4/2 = 2.
For x = -3 and x = -2.75, y increases by a factor of 6/4 = 1.5.
For x = -2.75 and x = -2, y increases by a factor of 10/6 = 1.67.
These ratios are not exactly the same, but they are approximately equal to each other. This is consistent with the pattern of an exponential function, where the ratio of consecutive y-values is constant.
Therefore, the second graph, which represents Table B, represents an exponential function.
To learn more about the exponential function;
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Please help giving brainiest
Answer:
(0, -1); maximum
16 divided by (x + 4) in WORD FORM
Answer:
sixteen divded by the sum of x and 4
Step-by-step explanation:
Hey there!
In order to do 16 divided by (x+4), you can first do 16/x + 16/4. Then, simplify 16/4, and then the answer to the question is 16/x + 4.
Hope this is what you were looking for! Let me know if you need more help! Good luck and have a great day!
17/20 - 2/15= ????????????????????
Answer:
Step-by-step explanation:
43/60
10. (04.01)
Which of the following best defines a function? (4 points)
A function is a special type of relation for which there is a rule that pairs each input with exactly one output.
A function is a relationship that defines the connection between two variables.
A function is a set of ordered pairs in which no y-value repeats,
A function pairs input and output values with no particular pattern,
Answer:
A] A function is a special type of relation for which there is a rule that pairs each input with exactly one output.
Step-by-step explanation:
Answer:
A. A function is a special type of relation for which there is a rule that pairs each input with exactly one output.
Step-by-step explanation:
A custodian went to buy x boxes of cleaning supplies and y boxes of light bulbs. He had the back of a van to transport them. Given a maximum amount that he could spend, and a limited space to put the supplies in, the following system of inequalities and graph represent the constraints.
LOOK AT SCREENSHOT FOR THE GRAPH
Which of the following points represent real solutions for this situation? Select all that apply.
(0, 40)
(30, 20)
(37.5, 15)
(50, 5)
Answer:
c is it
Step-by-step explanation:
a p e x
the simple interest on a sum of money for 2 years at 12% per annum is rupees 1380
(i) find the sum of money
(ii) the compound interest on this sum for 1 year payable half-yearly at the same rate.
Answer:
5750
710.7
Step-by-step explanation:
Simple interest = principal. * rate * time
Principal (p) = sum of money
1380 = p * 0.12 * 2
1380 = 0.24p
p = 1380 / 0.24
p = 5750 rupees.
The compound interest :
A = P(1 + r/n)^nt
A = final amount
n = number of compounding times per period
t = period
A = 5750(1 + 0.12/2)^2*1
A = 5750(1 + 0.06)^2
A = 5750(1.06)^2
A = 5750 * 1.1236
A = 6460.7
Hence, compound interest is :
Final amount - principal
6460.7 - 5750
= 710.7 rupees
What are the coordinates of vertex B' if the figure is rotated
90° counterclockwise about the origin?
Answer:
Answer: B'(-5,2)
Step-by-step explanation:
Rotations
When rotating a point B(x,y) 90 degrees counterclockwise about the origin it maps to an image point B'(-y,x).
The image shows a figure formed by points ABCD. The coordinates of B are B(2,5).
This point will be rotated 90 degrees counterclockwise about the origin, thus the coordinates of the image point B' are B'(-5,2).
Answer: B'(-5,2)