Answer:
y = -3x
Step-by-step explanation:
which expression has a value of 50
Answer:
b
Step-by-step explanation:
(50 +10) / ( 5+5)
oaquin counted the number of steps on each level as he ran up the stairs of the tower.
Level Numerical Expression Number of Stairs
1 32 x 1 32
2 32 x 2 64
3 32 x 3 96
4 32 x 4 128
Based on this relationship, how many stairs will Joaquin count by the 23rd level?
A. 165
B. 55
C. 756
D. 736
Answer:
D
Step-by-step explanation:
As soon as you see a number times 1 thats how you can find your unit rate, or constant of proportionality.
So since we know that we are going by 32's, we would do 32 23 times, in other words, 32x23
And when you use a CALCULATOR or pencil and paper you get D, which is 736 stairs
Give examples of Inverses (ex: are 3 and -3 inverses?)
Answer:
3, -3 ; 4, -4
Step-by-step explanation:
Yes, 3 and -3 are inverse because positive is the inverse of negative.
You could also write
[tex] {3}^{2} [/tex]
and
[tex] \sqrt{3} [/tex]
because squares and square roots are inverse operations.
multiply 2 x (-21) x 7
property name for 19+63=63+19
The pentagon is a regular polygon (all sides are equal). What is the Perimeter?
One side is 8x-10
Another side is 2(x+1)
Given:
One side = 8x-10
Another side = 2(x+1)
To find:
The perimeter of the pentagon.
Solution:
We know that, all five sides of a regular pentagon are equal.
[tex]8x-10=2(x+1)[/tex]
[tex]8x-10=2x+2[/tex]
[tex]8x-2x=10+2[/tex]
[tex]6x=12[/tex]
Divide both sides by6.
[tex]x=2[/tex]
Now, the length of each side of the pentagon is
[tex]Side=8(2)-10[/tex]
[tex]Side=16-10[/tex]
[tex]Side=6[/tex]
We know that, perimeter of a regular pentagon is
[tex]P=5a[/tex]
Where, a is the side length.
[tex]P=5(6)[/tex]
[tex]P=30[/tex]
Therefore, the perimeter of the regular pentagon is 30 units.
The sum of four consecutive integers is 48. What is the smallest of four integers?
Plz hurry
Answer:
the sum of four consecutive, odd whole numbers is 48
Step-by-step explanation:
Mr. Sanders teaches a painting class. He makes the histogram below to summarize the number of paintings each student has completed since the class began. Mr. Sanders says that the histogram shows that 1/3 of the students have finished 12 or more paintings.
Answer:
Step-by-step explanation:
6
2
2/3
Answer:
Mr Sanders likely found that 1/3 of students have completed 12 or more paintings because there are 6 bars on the histogram, and 2 of the bars represent students with 12 or more completed paintings. The actual fraction of the students who have completed 12 or more paintings is 4/19.
Step-by-step explanation:
There are 19 students in Mr Sanders's class. There are 6 bars on that histogram. He most likely thought that since the 2/6 is equal to 1/3, 1/3 of his students completed 12 or more paintings. That is not the case. Two-sixths/one-third isn't even a whole number. The other options are 2/3, 4/19, and 4/17. Two-thirds and four-seventeenths are not whole numbers as well. So that leaves 4/19. Four-nineteenths is actually equal to the whole number 4. We must put 4/19 as our answer because there are no such things as partial students...
You were charged interest of $6.31 for Purchases (near section 8). Why?
Answer:
B
Step-by-step explanation:
You had a balance of $535.07 from the previous month and only paid $450.00 so you didn’t pay off your balance in full.
PLEASE HELPPP i’ll give brainliest
What is the solution to 4 x + 6 less-than-or-equal-to 18?
Answer: x more-than-or-equal-to 3
Step-by-step explanation:
The percent decrease of an item that dropped in price from $50 to $43 is what ?
a. 7%
b. 14%
c. 43%
d. 86%
Answer:
B. 14%
Step-by-step explanation:
To find the percent decrease, find the difference between the two prices then divide it by the original price:
50 - 43 = 7
7/50
= 0.14
So, the percent decrease is B, 14%
The following expression has been simplified one step at a time. Match each step with the property used to get to that step. (Note: The column that lists the algebraic expressions is already in the correct order.)
1. (3 + 6x) - 5x
2. 3 + (6x - 5x)
3. 3 + (6 - 5) x
4. 3 + (1) x
5. 3 + x
a. multiplicative identity
b. distributive
c. associative
d. subtraction
e. commutative
What is percentage increase
Answer:
The concept of percent increase is basically the amount of increase from the original number to the final number in terms of 100 parts of the original. An increase of 5 percent would indicate that, if you split the original value into 100 parts, that value has increases by an additional 5 parts.
how many centimetres are there in a metre
Step-by-step explanation:
your answer is 100 metres
unit 8 test study guide right triangles and trigonometry
Answer:
Do you have a picture of the study guide?
Step-by-step explanation:
I am willing to help
Where the above right triangle is given, note that the value of x when rounded to the nearest tenth is 19.2.
What is a right triangle?
A right triangle is a triangle with one angle measuring 90°, forming a perpendicular side.
In this case,the base is 9 and the height is 17. Using the Pythagorean theorem, we can calculate the length of the hypotenuse as follows:
x² = 9² + 17²
x²= 81 + 289
x² = 370
To find the value of x, we take the square root of both sides -
x = √370
x = 19.2353840617
x ≈ 19.2 (rounded to the nearest tenth)
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Full Question:
Although part of your question is missing, you might be referring to this full question:
See attached image.
Solve for x. Round your answer to the nearest tenth.
*URGENT* I NEED HELP WITH ALL MY QUESTIONS PLEASE
Answer:
I don't know
5000x0.75+3000 should give you your answer. I think it's the 3rd one because 0.75+3000=3000.75.
Carmen purchased a prepaid phone card for $30. Long distance calls cost 19 cents a minute using this card. Carmen used her card only once to make a long
distance call. If the remaining credit on her card is $26.39, how many minutes did her call last?
Answer:
19
Step-by-step explanation:
30-26.39=3.61
3.61 divided by 0.19 = 19
hope this helps :)
10x + 4y = 24 6x +12y = 48 What is the value of y? *
A. 7
B. 7/2
C. 1
D. -7/2
Answer:
B
Step-by-step explanation:
1) lets use elimination to solve this:
multiply 10x+4y=24 with 3 in order to get "4y" into "12y"
3(10x+4y=24)
30x+12y=72
now subtract both equations to eliminate 'y"
30x+12y=72
-
6x+12y=48
---------------------
24x=24
x=1
now substitute 1 in the above equation:
6(1)+12y=48
6+12y=48
12y=42
y=7/2
Find the product of the expression:
(3x^2) (5x^8) (6x^5)
Answer:
[tex]\left(3x^2\right)\left(5x^8\right)\left(6x^5\right)=90x^{15}[/tex]
Step-by-step explanation:
Given the expression
[tex]\left(3x^2\right)\left(5x^8\right)\left(6x^5\right)[/tex]
Apply the exponent rule:
[tex]a^b\cdot \:a^c=a^{b+c}[/tex]
so the expression becomes
[tex]\left(3x^2\right)\:\left(5x^8\right)\:\left(6x^5\right)=3\cdot \:\:5\cdot \:\:6x^{2+8+5}[/tex]
Add the exponent numbers: 2+8+5=15
[tex]=3\cdot \:5\cdot \:6x^{15}[/tex]
Multiply the numbers: 3×5×6=90
[tex]=90x^{15}[/tex]
Therefore, we conclude that:
[tex]\left(3x^2\right)\left(5x^8\right)\left(6x^5\right)=90x^{15}[/tex]
The figure below is a net for the box to the right. What is the surface area of the box?
1.5 feet
lid
1.5 feet
2 feet
2 feet
1.5 feet
bottom
1.5 feet
1.5 feet
2 feet
2 feet
2 feet
4 feet
4 feet
Answer:
24 feet
Step-by-step explanation:
The ratio of boys to girls that went to great American on the 8th grade trip was 3 to 5 period if there were 320 students that went to great American, how many were girls??
Answer:
90
Step-by-step explanation:
you put 90
If triangle DEF is congruent to triangle GJH, find each missing angle?
Answer
<F = 105°
<G = 41°
<J = 34°
GJ = 19m
JH =14m
GH = 16m
Step-by-step explanation:
Since triangle DEF is congruent to triangle GJH, the following are true
<D = <G
<E = <J
<F = <H
Given
<H = 105°
Hence <F = 105°
Also <E = 34° =<J
From ∆GHJ
<G+<H+<J = 180°
<G+105+34 = 180°
<G + 139 =180
<G= 180-139
<G = 41°
Get the sides. For the sides, the following are true
DE = GJ = 19m
Also EF =JH = 14m
DF =GH = 16m
Layla is driving to a concert and needs to pay for parking. There is an automatic fee of
$8 just to enter the parking lot, and when she leaves the lot, she will have to pay an
additional $3 for every hour she had her car in the lot. How much total money would
Layla have to pay for parking if she left her car in the lot for 6 hours? How much
would Layla have to pay if she left her car in the lot for t hours?
Answer:
additional charge=$3×$6
=$18
minimum charge =$8
total=$24
Answer:
$26
8 + 3t
Step-by-step explanation:
Which is the largest of these fractions?
Answer:
6/11
Step-by-step explanation:
it is the only fraction that is over 0.5 as a decimal
Max correctly solved this inequality.
3
10
as-50
Which graph matches the inequality?
+
-55-54-53-52-51-50-49-48-47-46-45
-55-54-53-52-51-50-49-48-47-46-45
-55-54-53-52-51-50-49-48-47-46-45
O A
|_55_54-53-52-51-50-49_48_47_46_45
Answer:
B
Step-by-step explanation:
Got it right on edge. mark me brainliest please
The correct graph for the given inequality is the 2nd one.
What is an inequality?In mathematics, an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions. It is used most often to compare two numbers on the number line by their size.
Given that,
Max correctly solved the inequality and a ≤ -50.
The solution set is all real numbers less than or equal to -50.
Since -50 is inclusive, we draw a closed circle on -50 on the number line and draw the arrow to the left.
Hence, the correct graph is the 2nd one.
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apply the following rule to the point (-5,6): (x,y)-->(y,-x)
Answer:
(6, 5) will be the point after the rule is applied
The required translation as of the given condition is (6, 5).
Given that,
To apply the following rule to the point (-5,6): (x,y)-->(y, -x).
Coordinate, is represented as the values on the x-axis and y-axis of the graph
What is a translation of a point?
Translation of a point is defined as changing the location of the point on an arbitrary space with the help of any function and instructions.
Here,
In the question, a rule is mentioned for the transposition of the coordinates,
(x,y)-->(y,-x)
we just need to simply poor the coordinate in the given translation equation,
(-5, 6) - - -> (6, -(-5))
(-5, 6) - - -> (6, 5)
Thus, the required translation as of the given condition is (6, 5).
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FIRST ONE TO GIVE ME A CORRECT ANWSER GETS BRAINLIEST
Answer:
multiply by 5, t = 14.5
Step-by-step explanation:
t/5 = 2.9 (multiply each side by 5)
t = 14.5
On some days, Jardon travels from home directly to his
work. On other days, Jardon visits with his friend on his way
to work.
Approximately how much farther would Jardon travel by
walking from his home to his friend's house and then from
his friend's house to work than he would travel by walking
from his home directly to work?
Using the Pythagorean Theorem, it is found that he would travel 92 miles farther by walking from his home to his friend's house and then from his friend's house to work than he would travel by walking from his home directly to work.
The Pythagorean Theorem states that, on a right triangle, the length of the hypotenuse squared is the sum of the length of each leg squared, that is:
[tex]h^2 = l_1^2 + l_2^2[/tex]
Walking from his home to his friend's house and then from his friend's house to work, Jardon travels 240 + 120 = 360 yards.
Directly from his home to work, the distance is the hypotenuse of a right triangle with legs [tex]l_1 = 240, l_2 = 120[/tex], hence:
[tex]d^2 = 240^2 + 120^2[/tex]
[tex]d = \sqrt{240^2 + 120^2}[/tex]
[tex]d = 268[/tex]
360 - 268 = 92
He would travel 92 miles farther by walking from his home to his friend's house and then from his friend's house to work than he would travel by walking from his home directly to work.
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A washer and dryer cost a total of $960. The cost of the washer is three times the cost of the dryer. Find the cost of each item.
Cost of washer:
Cost of dryer:
Cost of washer: $720
Cost of dryer: $240
I've taken this test before and got it right, so you're good :)