Answer:
-2
Step-by-step explanation:
9+n/4= -15
cross multiply
9+4-15=n
13-15=n
n=-2
Mazie bought a bike during a 20% off sale and saved $16. What was the original price?
Answer:
$80. Which means she spent $64 with the sale, but the original price is $80.
Step-by-step explanation:
16 is 20% of 80
Answer
The answer is $120.00
Options
What was the price of the bicycle when Mazie bought it?
$140.00
$149.80
$130.00
$120.00
Explanation
Multiply the price of the bike by the discount percentage
150 * 0.20 = 30
Subtract the number you just found from the original price
150 - 30 = 120
There is your answer
You could take a shortcut by doing the following
1 - 0.20 = 0.80
Then multiply the original value by the new percentage
150 * 0.80 = 120
Personally I like the first method because it makes more sense.
What is the solution to 0.3(12x - 16) = 0.4(12 - 3x)?
Step-by-step explanation:
The solution is one-solution
.3(12x-16)=.4(12-3x) (you do the distributive property)
3.6x-4.8=4.8-.12x (you add 1.2 to both sides)
3.6x-3.6=4.8 (You add 3.6 to both sides)
3.6x=8.4 ( You divide 3.6 both numbers)
x=0.4285...
Its a one-solution
Each of the 90 fourth-grade students at North Elementary read 30 books over the school year.
How many books did they read all together?
Answer:
2700
Step-by-step explanation:
Please help I just relized that my dumb self waited 35 min for her science class to start but the class didnt start bc i missed math so i need to do thisss nowww my mother is so strictttt
it do be 1/4 tho not gonna lie
In 5.5 minutes you are able to type 297 words. What is your rate in words per minutes?
Answer:
54 words typed in one minute.
Step-by-step explanation:
1. If you divide 297 by 5.5 you will get your answer
ANSWER: 54 words/ 1 minute
Evaluate the expression. 7 + 8 x 4 - 6 ÷ 2
Answer:
36
Step-by-step explanation:
PEMDAS
7+(8)(4)-6/2
Answer:
36
Step-by-step explanation:
7+ 8 * 4-6/ 2
7 + 8( 8*4) - (6/2)
Multiple: 8 * 4 = 32
Add: = 7 + 32 = 39
Divide: 6 / 2 = 3
Subtract: 39 - 3 = 36
In the diagram below, what is the approximate length of the minor arc DE?
A. 19.7 cm
B. 11.8 cm
C. 47.1 cm
D. 23.6 cm
Answer:
its 23.6 not 19.7 the other guy guessed
Step-by-step explanation:
23.6
Answer:
The correct answer is 23.6
Step-by-step explanation:
I just got it correct.
what is the difference between 6204 and 5735
Answer:
469
Step-by-step explanation:
Difference = subtraction6,204 - 5,735 = 469I hope this helps!
the difference is 469
Solve the following
1. 6(22-17)+(33)
2. If Kate's Flight lasts 12 hours and she had already traveled 7 miles in 1 hour how many miles does she have left to travel
Answer:
1. = 63
2.= 77 miles
Step-by-step explanation:
Answer:
hope this helps
Step-by-step explanation:
1. 6(22-17)+(33)
=132-102+33
=30+33
=63
2. The answer is 77 miles
This is an example of a(n)?
A) Contraction
B) Enlargement
Answer:
A) Contraction
Step-by-step explanation:
Answer:
The answer to this question is Contraction.
The foundation of the house is 13 m x 7 m if the builder increases each dimension by the same amount the area of the foundation will increase to 135 m² find the new dimensions
Answer:
New dimension:
Length = 15m
Width = 9m
Step-by-step explanation:
Length = 13m
Width = 7m
Area of a rectangle = length × width
New dimensions:
Length = (13 + x)m
Width = (7 + x)m
Where,
x = increase in each dimension
Area of a rectangle = length × width
(13 + x) × (7 + x) = 135
91 + 13x + 7x + x² = 135
91 + 20x + x² = 135
x² + 20x = 135 - 91
x² + 20x = 44
x² + 20x - 44 =0
Using factorization method to solve quadratic equation
x² - 2x + 22x - 44 = 0
x(x -2) + 22(x - 2) = 0
(x - 2) (x + 22) = 0
x = 2 , x = -22
The increase can not be a negative value
Therefore, the increase in the dimensions is 2 inches
New dimensions:
Length = (13 + x)m
= (13+2)m
= 15m
Width = (7 + x)m
= (7+2)m
= 9m
please help i’ll give brainliest please tysm :))
Answer:
7
Step-by-step explanation:
Multiply the first collum by 7. It's basically unit rates
Answer:
7
Step-by-step explanation:
let the left column be x
let the right column be y
x is being multiplied by 7
so the ratio would be 7x=y
Carl Cornfield has been wondering whether he should plant white corn this year. He decides to sample 100 customers. 38% say they would purchase white corn. Carl wants to have a 95% confidence interval for this proportion.
The confidence interval is from 33% to 43% (to the nearest percent).
True
False
Answer:
true
Step-by-step explanation:
The bike store marks up the wholesale cost of all of the bikes they sell
by 30%. Andre wants to buy a bike that had a wholesale price of $125.
What is the marked up retail cost of this bike? (Type your answer as a
number price without units-$) *
Geometry...Please help as soon as possible please and Thank you!!!
Answer:
Step-by-step explanation:
Statement1. ST║UV
Reason 1. Given
Statement 2. ∠U≅∠T (A)
Reason2. Alternate interior angles
Statemnt 3. ST≅UV (S)
Reason3. Given
Statement 4. ∠S≅∠V (A)
Reason 4. Alternate interior angles
Statment5. ΔSTW≅ΔVUW
Reason5. ASA theorem of congruency
Answer:
GOOD LUCK ❤️
Step-by-step explanation:
.........
What theorem proves that this congruent
sss
Step-by-step explanation:
side side side
all 3 or congruent
HELP! I’ll give out a free 50points if someone helps me with this and I’ll mark brainliest
Answer:
B
Step-by-step explanation:
hope this helps ^^
Answer:
B is the correct answer
Step-by-step explanation:
Edit: Woops it was already answered... sorry!
The measures of two supplementary angles are ( 2x-11 )° and ( 3x+1 )°. Find the value of x.
What sentence represents the number of points in the problem below?
A test is worth 80 points. Multiple-choice questions are worth 2 points, and
short-answer questions are worth 4 points. If the test has 25 questions, how
many multiple-choice questions are there?
A. The number of multiple-choice question points plus the number of
short-answer question points is 25.
B. The number of multiple-choice question points plus the number
of short-answer question points is 25.
C. The number of multiple-choice question points times the number
of short-answer question points is 80.
D. The number of multiple-choice question points plus the number of
short-answer question points is 80.
Answer:
Option D: The number of multiple-choice question points plus the number of short-answer question points is 80 is the correct answer.
Step-by-step explanation:
Given that:
Points worth of test = 80 points
There are Multiple choice questions worth 2 points and short answer questions worth 4 points.
2x+4y=80
Thus,
The number of multiple choice questions points plus the number of short answer question points is 80.
Hence,
Option D: The number of multiple-choice question points plus the number of short-answer question points is 80 is the correct answer.
Does the graph represent a function? Why or why not?
A. No, because it fails the horizontal line test.
B. Yes, because it passes the horizontal line test.
C. Yes, because it passes the vertical line test.
D. No, because it fails the vertical line test.
Answer:
D . No because it fails the vertical line test .
Step-by-step explanation:
ming took a cab across town. His fare was $22, and he leaves a 18% tip. What is the total amount Ming pays to the cab driver?
Answer:
25.96
Step-by-step explanation:
18% of 22 is 3.96
3.96+22=25.96
For which system of equations is the graph below a solution
Answer:
what is the equation for D?
Step-by-step explanation:
Answer: A
Step-by-step explanation:
I need help with that plzzzzzz
Answer:
.25 or 25%
Step-by-step explanation:
I simplied it to 30 and 7 so then I expiremended with different percents and got that 25 percent equals 7.5 so I checked it and is 25 %
Josh is playing golf he has 1 white golf balls 2 yellow golf balls , 3 orange balls , 2 green golf balls in his golf bag at the first hole he randomly draws a ball from his bag , what is the theoretical probability of drawing a orange ball
Answer: 3/8
Step-by-step explanation:
1+2+3+2= 8
he has 8 balls in total
he has 3 orange balls so the probability is 3/8
is there anything after 16a+20 ?
Answer:
The equivalent expressions are:
[tex]4\left(4a+5\right)=16a+20[/tex]
[tex]=2\left(8a+10\right)[/tex]
[tex]=12a+20+4a[/tex]
Yes, 16a+20 could be further reduced by taking 2 as a common factor.
i.e. 16a+20 = 2(8a+10)
Step-by-step explanation:
Given the expression
[tex]4(4a+5)[/tex]solving the expression to determine the equivalent expression
[tex]4\left(4a+5\right)[/tex]
[tex]\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac[/tex]
[tex]4\left(4a+5\right)=4\cdot \:\:4a+4\cdot \:\:5[/tex]
[tex]=16a+20[/tex]
Taking 2 as the common factor
[tex]=2\left(8a+10\right)[/tex]
Also
[tex]12a+20+4a = 16a+20[/tex]
Therefore, the equivalent expressions are:
[tex]4\left(4a+5\right)=16a+20[/tex]
[tex]=2\left(8a+10\right)[/tex]
[tex]=12a+20+4a[/tex]
Yes, 16a+20 could be further reduced by taking 2 as a common factor.
i.e. 16a+20 = 2(8a+10)
Given h(x) =-9-x find h(2k-5)=?
what is 3 divided by 1/6?
Answer:
18
Step-by-step explanation:
Answer:
The correct answer is 18
Step-by-step explanation:
HAVE A GOOD DAY!
Solve for side BA
(show your work)
Answer:
BA = 25.5961
Step-by-step explanation:
To solve for side BA, we need to use the correct trigonometric function that relates (from the perspective of angle B) side AC and BA.
AC is Opposite of angle B
BA is the Hypotenuse
The function we use here is Sine. Sine is:
Sin(θ) = Opposite/Hypotenuse
So we simply substitute our information to solve.
Sin(62) = 22.6/BA
BA = 22.6/Sin(62)
Typing this into our calculator we get:
BA = 25.5961
(This is rounded to 4 decimal places)
Pls. Help me!!!!!!!!!!!!!!!!!!
Answer:
d i think
Step-by-step explanation:
Answer: C
Step-by-step explanation:
our points are
(0, 64) and (17, 30)
slope = 30-64/17-0 = -34/17 = -2
y=-2x+64 aka C
Tyra has 1223 cups of sugar. If r is the amount of sugar called for in one batch of cookies,
the expression 1223 ÷ r can be used to find how many batches Tyra can make with the sugar she has.
If r is 23 cup, how many batches of cookies can Tyra make?
Enter your answer in the box.
Answer:
1223 ÷ 23 = 53.1739130435