Answer:
John got 13 questions right and 2 questions wrong.
Step-by-step explanation:
15 questions right equals 100%.
100 {divided by} 15 = % for each question right
Each question is worth (100 diveded by 15) 6.7%.
84% {diveded by} 6.7% = 12.5
100% - 84% = 16%
16% {divided by} 6.7% = 2.38
Because 12.5 has a higher dicimle value than 2.38 and when the amount he got right is added to the amount he got wrong it needs to equal 15, 12.5 becomes 13 and 2.38 becomes 2.
Answer:
[tex]\frac{n}{15} =\frac{84}{100}[/tex]
[tex]n = \frac{21}{25}*5[/tex]
[tex]n = \frac{21*15}{25}[/tex]
[tex]n = \frac{315}{25}[/tex]
[tex]n = \frac{63}{5} or 12.6[/tex]
If c+d=40 and 10 ≤ c ≤ 30, all of the following are possible values of d EXCEPT,
A. 7
B. 14
C. 21
D. 28
Answer:
A. 7
Step-by-step explanation:
If you were to solve for c by using d as 7 you would get:
c+7=40
c would then equal 33, which is greater than 30
an auto mechanic earns $498.75 in 35 hours during the week. his pay is $2.50 more per hour on weekends. if he works 6 hours on the week, how much does he earn?
Answer:
100.5
Step-by-step explanation:
divide 498.75 by 35
whatever you get from that add 2.50
then times it by 6
Draw the image of ABC under dilation whose center is P and scale factor is 4.
Answer:
By plotting points A', B' and C' we can get the dilated image A'B'C'.
Step-by-step explanation:
Let the point P is origin (0, 0), segment AB lies on the x-axis and segment PC on the y-axis,
Coordinates of A, B and C will be (1, 0), (2, 0) and (0, 2).
When triangle ABC is dilated by a scale factor 4 about the origin,
Rule for dilation;
(x, y) → (4x, 4y)
New coordinates of the points A, B and C will be,
A(1, 0) → A'(4, 0)
B(-2, 0) → B'(-8, 0)
C(0, 2) → C'(0, 8)
Answer:
Correct
Step-by-step explanation:
New coordinates of the points A, B and C will be,
A(1, 0) → A'(4, 0)
B(-2, 0) → B'(-8, 0)
C(0, 2) → C'(0, 8)
what is 698475.50585057 multiplied by three
Answer:
2,095,426.517
Step-by-step explanation:
From the question above we are required to find the product of 698475.50585057 and 3
Therefore the product can be calculated as follows
698475.50585057 × 3
= 2,095,426.517
Hence 698475.50585057 multiplied by 3 is 2,095,426.517
29.8 is 10 times as much as what
Answer:
298
Step-by-step explanation:
29.8 is 10 times as much as 298
The required proportion value is 2.98 which is equal to one-tenth of 29.8.
Given that,
To determine 29.8 is 10 times as much as a number.
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Let the number be x,
According to the question.
29.8 = x10
x = 29.8 / 10x
x = 2.98
Thus, the required proportion value is 2.98 which is equal to one-tenth of 29.8.
Learn more about arithmetic here:
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3n - 7m for n = 5 amd m = 4
Answer:
-13
Step-by-step explanation:
first you will subsitute 5 for n in the equation to get 3(5)-7m
next you will subsitute 4 for m in the equation to get 3(5)-7(4)
then solve: 3x5= 15
7x4= 28
15-28= -13
Jenny and her children went to the SeaWorld.She purchased adult ticket for herself and children tickets for her 2 boys. Tickets cost $39.99 for one adult and $19.99 for each child. Let x represent the number of adult ticket purchase and y represent the number of child tickets purchase. Write an expression to represent the total cost of the tickets Jenny purchased
Given:
She purchased adult ticket for herself and children tickets for her 2 boys.
Cost of one adult ticket = $39.99
Cost of one child ticket = $19.99
To find:
The expression to represent the total cost of the tickets Jenny purchased.
Solution:
Let x represent the number of adult ticket purchase
and y represent the number of child tickets purchase.
Cost of one adult ticket = $39.99
Cost of one child ticket = $19.99
Total cost = 39.99x + 19.99y
Therefore, the expression for total cost is 39.99x + 19.99y.
She purchased one adult ticket and 2 child tickets.
Substitute x=1 and y=2 in the above expression.
Total cost = 39.99(1) + 19.99(2)
= 39.99 + 39.98
= 79.97
Therefore, the required expression to represent the total cost of the tickets Jenny purchased is 39.99(1) + 19.99(2) and total cost is $79.97.
Help me with this please
Answer:
a -30
b - 40
c - 40
d - 40
e - 110
f - 110
g - 30
h - 140
i - 70
j - 70
I believe all of these are right. Sorry if they are not. I hope this helps!
Order the expressions from least to greatest.
22 x 5
111
82 – 60
Answer:
82 - 60, 22 × 5, 111
Step-by-step explanation:
Solve the expressions:
22 × 5 = 110111 = 11182 - 60 = 22Order the expressions from least to greatest:
The third expression has the least value, so it is firstThe first expression has the next greatest value, so it is secondThe middle expression has the greatest value, so it is lastWrite out the expressions from least to greatest:
82 - 60, 22 × 5, 111
The perimeter of a rectangle is 90 centimeters. The length is 27 centimeters. What is the width of the rectangle?
help
thanks!!!!!!!!!!!!!!!!!!!!!!!!!
Please help me. WILL GIVE BRAINLIEST
Answer:
d
Step-by-step explanation:
Answer:
third option
Step-by-step explanation:
Given that x = - 2 + [tex]\sqrt{8}[/tex] is a root
Complex roots always occur as conjugate pairs , thus
x = - 2 + [tex]\sqrt{8}[/tex] is a root then x = - 2 - [tex]\sqrt{8}[/tex] is a root
The required factor is then
(x - (- 2 - [tex]\sqrt{8}[/tex] ) )
Which of the following statements BEST proves that ∠XWY ≌ ∠ZYW?
A.
If two parallel lines are cut by a transversal, then corresponding angles are congruent.
B.
If two parallel lines are cut by a transversal, then complementary angles are congruent.
C.
If two parallel lines are cut by a transversal, then alternate interior angles are congruent.
D.
If two parallel lines are cut by a transversal, then alternate exterior angles are congruent.
Answer: C
Step-by-step explanation:
The pair of angles created on the inner side of the parallel lines intersected by a transversal but on opposing sides of the transversal is known as an alternative interior angle. The correct option is C.
What are Alternate Interior angles?When two parallel lines are intersected by a transversal, the pair of angles created on the inner side of the parallel lines but on opposing sides of the transversal is known as an alternative interior angle. These angles are always equal in measure.
The best statements BEST that proves ∠XWY ≌ ∠ZYW is that If two parallel lines are cut by a transversal, then alternate interior angles are congruent.
Hence, the correct option is C.
The complete question is mentioned in the image below.
Learn more about Alternate Interior Angles here:
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i need help on this one plz and thanks :)
how do you write y-2=-1/3(x-7)
Answer:
y= -1/3 + 13/3
Step-by-step explanation:
y-2=-1/3(x-7)
Use the distributive property to simplify the right side of the equation
y-2=(-1/3 * x) + (-1/3 * -7)
y-2=-1/3x + 7/3
Add 2 to both sides get the y by itself. 2 can be expressed as 6/3
(y-2) + 2=(-1/3x + 7/3) + 6/3
y= -1/3x + 13/3
what is the value of 10-¹
Answer:
100.
Step-by-step explanation:
it may be 100. im not sure though
Answer:
[tex]\frac{1}{10}[/tex]
Step-by-step explanation:
[tex]10^{-1}[/tex] = [tex]\frac{1}{10^{1} }[/tex]= [tex]\frac{1}{10}[/tex]
What is the equation of the line?
Explain.
Answer:
y = -2/1x-2
Step-by-step explanation:
If each unit happens to be 1 then this will be correct, but it is hard to determine the equation without units.
tavon has a $50 gift card that loses $2 for each 30-day period it isnt used. he has a $40 card that loses $1.50 for each 30-day period day it is not used. write and solve an equation to determine the number of 30-day periods until the value of the gift cards will be equal. what will the value of each card be when they have equal value?
Answer:
bmbmvm mbxmvxkbxkhxkbxkhxkhxkhxkhxkbxkhxkgx୮୬୩୭୪୨୭୪୨୭୨୭୨୭୪୭୪
Answer:
Answer:
Let the number of 30 day period be = p
Step-by-step explanation:
part b= So, there will be 20 30-day periods until the cards will be equal in value. The answer is $10
Which of the following statements are true about the polynomial?
7x^3y+10x^2y^3+13xy^2+14
A.The degree is 4.
B.This expression is called a trinomial.
C.The leading coefficient is 10.
D.The constant term is 7x3y.
Answer:
b
Step-by-step explanation:
HELP!!! RIGHT NOW!! Please solve the problem as soon as possible!
Answer:
The domain is continuous and the weight y of x identical hardcover books
Step-by-step explanation:
Discrete means non continuous data. This is continuous and equal so the domain is continuous.
Also, precipitation each week can vary so that won't work. Eating carrots each day can also vary so that doesn't work. The cost of an item can vary almost every day! So that is not true.
Therefore it is the last one, because it is identical and all of the coordinates make (1,3).
Hope this helps! :)
Share 96 sheep in the ratio 7:1:4
Answer:
56:8:48
Step-by-step explanation:
1] add th eratio numbers together
7+1+4=12
2} write the ratio as fractions
7/12 1/12 4/12
3] use the formula (ration number/total number * number of sheeps)
a] 7/12 * 96 = 56
b] 1/12 * 96 = 8
c] 4/12 * 96 = 48
3] write your answer as a ration
7 : 1 : 4 = 56 : 8 : 48
Answer:
The answer is 56 : 8 : 32
Step-by-step explanation:
7 + 1 + 4 = 12
7/12 x 96 = 56
1/2 x 96 = 8
4/12 x 96 = 32
tell me some irrational numbers
Answer:
square root of 2, pi, square root of 5, square root of 10, square root of 3, square root of 15
Step-by-step explanation:
Answer:
√8 √1.6 -√11 π √2/5
Step-by-step explanation:
The predicted calories in food items based on grams of fat are represented by the residual plot.
What does the pattern in the residual plot indicate about the type of model?
A. The pattern is random, indicating a good fit for a nonlinear model.
B. The pattern shows the points are far from the zero line, indicating a good fit for a linear model.
C. The pattern is random, indicating a good fit for a linear model.
D. The pattern shows the points are far from the zero line, indicating a good fit for a nonlinear model.
E. The pattern is random, indicating that the model is unable to be determined.
Answer:
The correct option is;
C. The pattern is random, indicating a good fit for a linear model
Step-by-step explanation:
A graph that has the residuals (the difference between the value observed and the value expected (regression analysis) on the vertical axis and the variable that is not affected by the other variables (independent variable) on the x or horizontal axis is known as a residual plot
A linear regression model is suited in a situation where the points are dispersed randomly on both sides of the horizontal axis
Therefore, given that the first point is below the horizontal axis and the next point is above the horizontal axis, while the third and the fourth points are below the horizontal axis, the fifth, sixth, and seventh points are above the horizontal axis and the eighth point is below the horizontal axis, the points are random around the horizontal axis, indicating the suitability of a linear regression model.
Answer:
C. The pattern is random, indicating a good fit for a linear model.
Step-by-step explanation:
Took the test. It's 100% correct.
Help! What is 3.50 +4.50
Answer:
8
Step-by-step explanation:
what is elasticity?
Answer:
the ability of an object or material to resume its normal shape after being stretched or compressed; stretchiness.
Step-by-step explanation:
Answer:
the ability of an object or material to resume its normal shape after being stretched or compressed
Help me.............
find the next two numbers in the pattern -2,20,-200,2000
what is the answer when you simplify?.
Answer:
C
Step-by-step explanation:
Because when you multiply 4³ × 4^4 = 16384
And 4^9 = 262144
(divide) 16384/262144 = .0625
.0625 = [tex]\frac{1}{16}[/tex]
[tex]\frac{1}{4^2}[/tex] = [tex]\frac{1}{16}[/tex]
because 4 * 4 = 16
HOPE THIS HELPED!!!
What is the equation of a line perpendicular to y = -5x + 4 that passes through (-10, 6)?
Answer: y= 1/5 x + 8
Step-by-step explanation:
To get a perpendicular line, take the reciprocal of the original "m" in the equation and reverse the sign.
- 5 becomes +1/5
Then substitute the y and x values from the given coordinate into the new equation and solve for b
y= mx+b
6=1/5 (-10) + b
6 = -2 +b
8 = b rewrite the new equation and substitute 8 for b
y= 1/5 x + 8
The attached screenshot shows the lines and the point.
Given the function f(x) = 4x evaluate
f(-2)
Answer:
the answer =-8
Step-by-step explanation:
you subsitute -2 for x so its 4(-2) which is -8
Answer:
Given value x=-2, just substitute it to [tex]4^{x}[/tex]
= [tex]4^{-2}[/tex] (this uses the property [tex]a^{-m}=\frac{1}{a^{m} }[/tex])
= This results in:
[tex]\frac{1}{4^{2} } = \frac{1}{16 }[/tex]