Answer:
1/3
Step-by-step explanation:
The ratio can be written as a fraction. This would be 28/84. You simplify ratios just like how you simplify a fraction. 28x3 is actually 84, so the answer in simplest form is 1/3.
Hope this helps and have a great day!! []~(^▽^)~*
The ratio of the number of red pens to the number of black pens in simplest form is, 1 : 3.
What is mean by Ratio?A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y. Where, x and y are individual amount of two quantities. And, Total quantity gives after combine as x + y.
We have to given that;
There are 28 red pens and 84 black pens in a bag.
Here, Number of red pens = 28
And, Number of black pens = 84
Hence, The ratio of the number of red pens to the number of black pens is,
⇒ Number of red pens : Number of black pens
⇒ 28 : 84
⇒ 28/84
⇒ 14 / 42
⇒ 1 / 3
⇒ 1 : 3
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Idk how to do this and I need it in an hour
Answer:
a) [tex]2x^2+8-5x+-3x^2-4+7x\\\\= -1x^2+2x+4[/tex]
b) [tex]2x^2+8-5x--3x^2-4+7x\\\\= 5x^2+2x+4[/tex]
Student answers 90% of the questions on the math exam correctly if she answers 27 questions correctly how many questions are on exam
Answer:
30 questions
Step-by-step explanation:
if you cross multiply and divide like this,
[tex]\frac{27}{x}= \frac{90}{100}[/tex]
27 x 100 = 2700
2700 / 90 = 30
you'll get ; 30 !
Answer:
There are 30 total questions on the exam
Explanation:
90% = 0.9
0.9 x TOTAL = 27
27/ 0.9 = TOTAL
30 = TOTAL
It takes Rebekka 1/2 hour to jog 1 1/4 miles.
Which calculation could be used to find her unit rate in miles per hour?
A. multiply: 1 1/4 x 1/2
B. multiply: 1/2 x 2
C. divide: 1 1/4 / 1/2
D. divide: 1/2 / 1 1/4
Hey guys I need help with this im stupid i know but please
tick number 1 and 5. because if 30%=120 , therefore 100%= 100/30*120=400
-2 (-3x + 3) + 2x = 58
Answer:
x = 8
Step-by-step explanation:
Given
- 2(- 3x + 3) + 2x = 58 ← distribute and simplify left side
6x - 6 + 2x = 58
8x - 6 = 58 ( add 6 to both sides )
8x = 64 ( divide both sides by 8 )
x = 8
If g(x) = 3x² – 2x–5, what is the
value of g(-1) ?
Answer:
0
Step-by-step explanation:
g(-1)=3×(-1)²-2×(-1)-5 g(-1)=3×1+2-5 g(-1)=3+2-5 g(-1)=5-5 g(-1)=0 ......
The value of g(x) = 3x² - 2x - 5, at x = -1 is g(-1) and it is equal to zero.
What is a function?A function can be defined as the outputs for a given set of inputs.
The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.
Given, A function g(x) = 3x² - 2x - 5.
Now, The value of g(-1) is the same as x = - 1 in g(x).
Therefore, g(-1) = 3(-1)² - 2(-1) - 5.
g(-1) = 3 + 2 - 5.
g(-1) = 0.
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having trouble please help I WILL MARK BRAINLYEST
Answer:
28
Step-by-step explanation:
the pattern is 7. 35 - 7 = 28
If y= 5x-2 and x= 4b+3 then y is equivalent to which of the following
Answer:
y = 20b + 13
Step-by-step explanation:
From the above, we want to get y
Using the given d value, we simply proceed to substitute
y = 5x-2
x = 4b + 3
Substituting x-values, we have
y = 5(4b + 3)-2
y = 20b + 15-2
y = 20b + 13
Subtract 7b(2a 2 +5a-7) from (7a 2 -a+3 )-3b(6a 2 -b+3)
Answer:
[tex]\huge\boxed{-32a^2b+7a^2+3b^2-35ab-a+40b+3}[/tex]
Step-by-step explanation:
[tex]7b(2a^2+5a-7)\qquad|\text{use the distributive property}\\\\=(7b)(2a^2)+(7b)(5a)+(7b)(-7)=14a^2b+35ab-49b\\\\\\(7a^2-a+3)-3b(6a^2-b+3)\qquad|\text{use the distributive property}\\\\=7a^2-a+3+(-3b)(6a^2)+(-3b)(-b)+(-3b)(3)\\\\=7a^2-a+3-18a^2b+3b^2-9b[/tex]
Substraction
[tex](7a^2-a+3-18a^2b+3b^2-9b)-(14a^2b+35ab-49b)\\\\=7a^2-a+3-18a^2b+3b^2-9b-14a^2b-35ab+49b\\\\\text{combine like terms}\\\\=(-18a^2b-14a^2b)+7a^2+3b^2-35ab-a+(-9b+49b)+3\\\\=-32a^2b+7a^2+3b^2-35ab-a+40b+3[/tex]
3+x
three increased
by a number
The sum of nine
and eight
nine divided by a
number
9+8
the sum of nine
and a number
x/9
a number
divided by 9
9/x
nine less than a
number
9n
the product of 9
and a number
X-9
9+x
Please Help Me !
Answer:
1) Three increased by a number: 3+x
2) The sum of nine and eight: 9+8
3) Nine divided by a number: 9/x
4) The sum of nine and a number : 9+x
5) A number divided by 9: x/9
6) Nine less than a number: x-9
7) The product of nine and a number: 9n
Step-by-step explanation:
You have to match statements with their mathematical expressions.
I will match the statements with their mathematical forms.
1) Three increased by a number: 3+x
2) The sum of nine and eight: 9+8
3) Nine divided by a number: 9/x
4) The sum of nine and a number : 9+x
5) A number divided by 9: x/9
6) Nine less than a number: x-9
7) The product of nine and a number: 9n
Can someone help me plsssss
Step-by-step explanation:
if x is 7 ok so 2(7)+5
14+5
19
HELP PLEASE!!! This is a Function or Not a Function Assignment HELP I DON’T UNDERSTAND IT PLEASE
Answer:
O and N is a function
K is not a function.
Step-by-step explanation:
O and N is solved for X perfectly, but K has mixed variables so there isn't a y-intercept.
Translate this sentence into an equation 20 less than Jenny's score is 66?
Answer:
x-20=66
Step-by-step explanation:
Jenny's score can be written as a variable x. 20 less than x is x-20. The answer is 66, so that will be on the other side of the equation. The equation is written as: x-20=66.
Hope this helps you!! Have a great day ^^
What is the equation of the line?
Answer:
y=2x=2
Step-by-step explanation:
bc the line is to the right and going up so it makes it positive and it crosses 2 on the y axis and it goes up 2 times each time
Use the distributive property to write an expression that is equivalent to: 3(x + 5)
PLZZZZZZZZZZZZZZZZZZZZ HELPPPPPPPPPPP
Answer:
3x + 15
Step-by-step explanation:
when distributing, multiply the number outside of the parentheses by the numbers inside the parentheses.
Hey there!
3(x + 5)
DISTRIBUTE 3 WITHIN the PARENTHESES
= 3(x) + 3(5)
= 3x + 15
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Explain why the lines are parallel given the angles shown. Assume that all tile patterns use this basic shape.
Picture provided
supplementary angles
converse of alternate interior angles theorem
so, these problems are currently my last two problems. There were two rude people that answered them and didn't actually give me an answer and responded with "no". Can you guys please help me? These are the only two questions giving me problems at the moment. Thank you for taking the time to help me.
1) |5x+5|+22>57
solve for both absolute values
( it would help if you could include how to graph it on a number line as well as the interbal notation )
2) I= prt
solve for I
Answer:
Step-by-step explanation:
Answer:
k
Step-by-step explanation:
What is the result of subtracting the second equation from the first?
-2.1 + y = 0
- 7+ + 3y = 2.
find the p(2) for each of the following functions 3. p(x)=2x⁴-3x³+9?
Answer:
17
Step-by-step explanation:
2*[tex]2^4[/tex]-3*[tex]2^3[/tex]+9
2*16-3*8+9
32-24+9
17
Find the unit rate.
8 birds in 2 nests =
birds per nest
8 birds in 2 nests =___birds per nest
Answer:
4
Step-by-step explanation:
8/2=4
hope this helps :3
if it did pls mark brainliest
Answer:
try math-way
Step-by-step explanation:
plzzz show me how you got it a Decimal form
Answer:
1.06666666667. this could be wrong as I got this of Google. or 1.06 . btw idk how to explain it
Need explanation for how to find "E"(in the picture attached), and how to calculate "sin".
Answer:
Step-by-step explanation:
E is just that Vertex/Angle.
[tex]sin[/tex] is a measure of an angle.
You should learn SOHCAHTOA
[tex]sin = opposite/hypotenuse\\cos(ine) = adjacent/hypotenuse\\tan(gent)=opposite/adjacent[/tex]
The opposite side is relative to the angle.
In this case, the opposite of E is 20
The hypotenuse is 29
so,
[tex]sin(E)= \frac{20}{29}[/tex]
HELP ME PLEASE ASAP?!?!
Which of the following is most likely the next step in the series?
It follows a pattern
Step-by-step explanation:
So I guess it's B?
solve x2+5-14=0 I need help!
Answer:
x = 3 or x = -3
Step-by-step explanation:
x^2 -9 =0
x^2 = 9
x = 3 or x = -3
Step-by-step explanation:
if your question is
x²+5-14=0
x²-9=0
x²=9
x=√9
x=3 ans
Select the expression equivalent to 4(x−7)+8. 4x−47+8 4(x−15) 4x−7+8 4x−28+8
Answer:
4x-28+8
Step-by-step explanation:
ILL MARK U BRAINLIEST IF U DO THIS AND GET IT RIGHT
Answer:
Step-by-step explanation:
1.
The x's and y's will shift to the right and upward. This will make the shape larger because we are multiplying each point (x, y) by 2 [2(x, y)]. The new shape is similar since it is practically the same exact figure with a different scale. Furthermore, the angle measurements are congruent.
2. This will shift the x's and the y's upward and to the right making the shape larger although the shape will be stretched and will not be similar in terms of angle measures and other factors.
3. This will make the figure larger although the angle measurements will not be preserved and a new shape will form. This will not be similar from the original one since it will be stretched and the angles measurements are not congruent..
HELP ASAP PLS 20 POINTS WILL GIVE BRAINLIEST
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
What is the equation of
y=x3
with the given transformations?
vertical stretch by a factor of 3, horizontal shift 4 units to the right, vertical shift 3 units down
Answer:
The parent function is y = x³.
After a vertical stretch by a factor of 3, obtain
y = 3x³
After a horizontal shift 4 unit to the right, obtain
y = 3(x - 4)³
After a vertical shift 3 units down, obtain
y = 3(x - 4)³ - 3
Answer: y = 3(x - 4)³ - 3
y = 3(x - 4)³ - 3 is the equation of y=x³ with the given transformations
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
Graph transformation is the process by which an existing graph, or graphed equation, is modified to produce a variation of the proceeding graph.
The given equation is y=x³
A translation of a graph is its rigid movement, vertically or horizontally.
From given we have,
There is a vertical stretch of 3 units, hence the function is multiplied by 3.
There is a horizontal shift of 4 units to the right, hence x -> x - 4.
There is a vertical shift of 3 units down, hence 3 is subtracted from the function.
The required equation is given by y = 3(x - 4)³ - 3.
Hence y = 3(x - 4)³ - 3 is the equation of y=x³ with the given transformations
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Henry places x marbles into an empty bucket.Each marble has the same weight. The weight, in ounces, of the bucket and marbles can be calculated using the expression shown
Complete Question:
Henry places x marbles into an empty bucket. Each marble has the same weight. The weight, in ounces, of the bucket and marbles can be calculated using the expression shown: 3x + 8
What does the term 8 represent in this expression?
Answer:
The weight of the bucket
Step-by-step explanation:
Given
[tex]Weight = 3x + 8[/tex]
Required
What does 8 represent?
The given expression illustrates the weight of the whole system i.e. bucket and marbles
i.e.
[tex]Weight = Weight\ of\ x\ marble + Weight\ of\ Bucket[/tex]
Since there are x marbles, by comparison:
[tex]Weight\ of\ x\ marble = 3x[/tex]
[tex]Weight\ of\ bucket = 8[/tex]
Hence, 8 represents the weight of the bucket
Is none proportional it proportional
Answer:No it is not proportional
Step-by-step explanation:
The reason non proportional is not proportional is bc it's not proportional.
Answer:
It's not proportional
Step-by-step explanation:
I can tell you that if you have, for example, 2 spring rolls and they are eaten by 4 people, then 1 spring roll is eaten by 2 people. That is proportional, becuase the amount of people is always dependened of the amount of spring rolls. But here, for 1 hour here, you get paid 52 dollars. If it was proportional, for 2 hours you'd be paid 104 dollars.
The chart shows the distances, in miles, between some towns and cities.
Toby lives in Wrexham and works in Oswestry.
Wrexham
18
Ruthin
a) Use the chart to find the road distance
between Wrexham and Oswestry.
15
21
12
Corwen
15
33
23
Oswestry
Sarah lives in Ruthin and works in Oswestry for
5 days a week. Each day she travels to and
from work using the route shown on the map.
MOLD
ROTHEN
WRESTHAM
b) How many miles, in total, does she travel to
and from work each week? 231 miles
CORNEN
OSWESTRY
Choose CI
Answer:
part a)15
part b)330
Step-by-step explanation:
(a) The road distance between Wrexham and Oswestry is 15 miles.
(b) The number of miles Sarah travels to and from work each week is 330 miles.
What are Arithmetic operations?Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions.
Given a chart of the road distances between various towns and cities.
(a) From the chart,
Distance the corresponds to Wrexham and Oswestry = 15 miles
Road distance between Wrexham and Oswestry is 15 miles.
(b) Distance between Ruthin and Oswestry = 33 miles
Total distance travelled to and from work in a day = 33 × 2 = 66 miles
She works 5 days a week.
Total distance travelled for 5 days = 66 × 5 = 330 miles
Hence the number of miles travelled by Sarah in a week is 330 miles.
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The chart is given below.
