Answer:
Step-by-step explanation: does anyone know? I really need this
i need help ill give brainleyst
A is directly proportional to B squared
When A= 500, B = 10.
Find A when B= 20.
Answer:
A = 2000.
Step-by-step explanation:
A = kB^2 where k is a constant to be found, so substituting:
500 = k * 10^2
100k = 500
k = 5.
So we have
A = 5B^2
When B = 20:
A = 5 * 20^2
= 5 * 400
= 2000.
I need help finding the answer?
Answer:
-79
Step-by-step explanation:
5ac-2b
5(-3)(5) - 2(2)
-75-4
-79
substitute values and then solve
A cyclist travels at an average speed of 13 mph for 3 hours.
How far did she travel in miles?
Answer:
39 miles
Step-by-step explanation:
We know that a cyclist travelled at an average rate of 13 miles per hour for 3 hours and are asked to how far she travelled in miles.
To solve, we need to take into mind that for three hours, the cyclist drove 13 miles per hour.
Meaning that for every hour, 13 miles were driven.
Therefore we need to multiply 13 by 3 to get our answer :
13 miles * 3hrs
39 miles
wrote this expression on the board: 2 12 ÷ 34 She asked her students to write a word problem that could be solved using the expression she wrote on the board. Which word problem could be solved using the expression?
Step-by-step explanation:
The equation equation looks incomplete. However assuming it to be 212÷34.
This becomes a simple case of division. Now forming a world problem on this equation.
Consider there are 212 chocolates to be distributed among 34 children, such that each child gets equal number of chocolates. Find how many chocolate does each child got.
Simply divide 212 by 34 to get the answer =212/34
If one candy bar weighs 3 ounces, what is the weight of 11 candy bars?
A. 1 lb 8 oz
B. 1 lb 15 oz
C. 2 lb
D. 2 lb 1 oz
E. 2 lb 8
Answer:
C. 2 lb
Step-by-step explanation:
11 x 3 = 33
33 oz = 2.0625 lb or 2 lb
Answer:
C
Step-by-step explanation:
I'm taking that test rn
Simplify (2x - 6)2
????
Answer:
4x-12
Step-by-step explanation:
just distribute the 2 over to the 2x and the -6. That means multiply 2, to everything in the parentheses. Hope that's helpful
The simplified form of the expression [tex](2x - 6)^2[/tex] is [tex]4x^2 - 24x + 36.[/tex]
To simplify the expression[tex](2x - 6)^2[/tex] expand the square.
The square of a binomial follows the formula:
[tex](a - b)^2 = a^2 - 2ab + b^2.[/tex]
The binomial is 2x - 6.
Applying the formula, we have:
[tex](2x - 6)^2 = (2x)^2 - 2(2x)(6) + (-6)^2[/tex]
Simplify each term:
[tex](2x)^2 = 4x^2[/tex]
[tex]2(2x)(6) = 24x[/tex]
[tex](-6)^2 = 36[/tex]
Substituting these simplified terms back into the expression:
[tex](2x - 6)^2 = 4x^2 - 24x + 36[/tex]
Therefore, the simplified form of [tex](2x - 6)^2[/tex] is [tex]4x^2 - 24x + 36.[/tex]
To learn more on Expressions click:
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Work out the area of a square with base = 1cm
Answer:
the area of the square is 1cm^2
Step-by-step explanation:
The computation of the area of the square is given below:
As we know that
Area of the square = side^2
Also in the square four sides are equal
So
= 1cm^2
= 1cm^2
hence, the area of the square is 1cm^2
Lola already has 6 pennies, and she plans to save more. In her first week of saving pennies, she will save twice the
number of pennies that she already has. Each week after, she will save twice the number of pennies as the previous
week.
Which equation can be used to determine the number of pennies, p, Lola will save during week w of saving pennies?
Answer:
c
Step-by-step explanation:
Christy spent 25 of her money on a shirt. She has $21.75 left. How much did she spend on the shirt?
A. $8.70
B. $7.25
C. $14.50
D. $29
Christ spent a total amount of $ 14.50 on the shirt.
Finding the amount spent on the shirt
Here we use the linear equation concept to solve the problem.
Since we do not know the amount that Christ has assume that with a variable and form a linear equation using the data given.
Now solve the resultant equation for the value of the variable and find the amount spent by Christ on the shirt as given below
Here we have
Christy spent 2/5 of her money on a shirt.
She has $21.75 left
Let 'x' be the amount that Christy has
From the data,
Christy spent 2/5 of her money on a shirt.
Amount spent by Christy = 2/5 of x = 2x/5
Remaining amount = x - 2x/5
From the data,
Chrisy is left with $ 21.75
=> x - 2x/5 = 21.75
=> 3x/5 = 21.75
=> 3x = 108.75
=> x = 36.25
Amount the that she spent 2x/5 = 2 (36.25)/5 = 14.50
Therefore,
Christ spent a total amount of $ 14.50 on the shirt.
Learn more about Linear equation problems at
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what property is 37 • 2 • (-5 + 5 + 1/2)
Answer:
37
Step-by-step explanation:
74*(-5+5+1/2)
74*(1/2)
37
Does anyone know whoever answers i’ll mark brainlist
Answer:
(1,2)
Step-by-step explanation:
The solution to the system is where the two lines cross.
They cross at x=1 and y=2
(1,2)
HELP ASAP PLEASE! I need to write an equation of the line in slope-intercept form.
Answer:
y=2x-2
Step-by-step explanation:
The slope-intercept form is known as y=mx+c
y= the y coordinate
m= the gradient/slope
x= the x coordinate
c= y intercept
The y intercept is when the line crosses the y axis. The graph shows the y intercept is (0,-2). This means our value of c is -2.
Now we must find the value of m. The value of m is the slope of the graph. I usually figure out the slope by doing the change in y / change in x (by counting along how many squares). The change in y is two squares up and the change in x is one square along.
Therefore, the gradient would be 2/1. This equals 2 (so m=2).
Now, we can easily substitute these values into the equation given earlier. Therefore, the equation would be y=2x-2.
A triangle has two sides of lengths 7 and 12. What value could the length of
the third side be? Check all that apply.
A. 17
B. 5
C. 7
D. 11
E. 9
DF. 3
Answer:
The length of the third side is 23
Step-by-step explanation:
All check
7, 17, 11, and 9 are the answerr
for the triangle find the unknown angle x remember that for the triangle, the three interior angles must add up to 180 degrees
Answer:
m<x=60°
Step-by-step explanation:
180-40= 140
140-80=60
m<x=60°
Hope this helps! :)
whats the property
someone plz help
Answer:
The property is the water cycle
Suppose f(x) = 5x - 2x... Find f(2)
Should I use a calculator for this math homework? He didn't say if we could or not.
Answer:
If it helps, sure. You shouldn't get in trouble if he didn't clarify, just make sure to show your steps and how you got your answer.
Step-by-step explanation:
Jeremy received a Bill with a balance due of 25.60
Answer:
6.40$
Step-by-step explanation:
HOPE THIS HELPS
PLZZ MARK BRAINLEIST
MULTIPLE CHOICE Given the lengths of the three sides of a triangle determine which triangle is not a right triangle . A
B
C
D
Answer:
D. is not right triangle
Step-by-step explanation:
10²+ 49² = 2501 ≠ 50²
3(x+2)=36
Please help
Answer:
Step-by-step explanation:
3(x+2)=36
3x+6=36
3x=30
x=10
Answer:
3 (10+2)=36
Step-by-step explanation:
Hope this helps
a + b + c) = (a + b) + C
propertie
Answer:
Commutative Property its is....Please answer ASAP!!
6.7.30
What is the perimeter of parallelogram WXYZ? It’s not 25 I’ve tried that.
HELP PLEASE ASAP!!! HELP PLEASE HELP WITH THIS!
if there is just supposed to be a one-word answer, I think it's
trueThis I need help ur help
Answer:The answer is -4
Step-by-step explanation:-4+-5=-9
Answer:
-4
Step-by-step explanation:
your basically adding
The length of a standard-sized rectangular rug is 2 feet longer than the width. Let x be the width. Which of the following quadratic inequalities indicates that the area of the rug is no less than 80 square feet?
Answer:
B
Step-by-step explanation:
Simultaneous equations
2x+4y=1
3x+5y=7
Answer:
x = 11.5, y = -5.5.
As an ordered pair this is (11.5, -5.5).
Step-by-step explanation:
2x+4y=1 Multiply this by 3:
3x+5y=7 Multiply this by -2.
6x + 12y = 3
-6x - 10y = -14 Adding these 2 equations:
0 + 2y = -11.
y = -11/2
y = -5.5.
Now plug this into the first equation:
2x + 4(-5.5) = 1
2x = 1 + 22
x = 23/2
x = 11.5.
How long will it take for a certain population of fish to triple if the relative growth rate is 45% per year?
Answer:
n = 3 Year (Approx)
Step-by-step explanation:
Given:
Growth rate (r) = 45% = 0.45
Find:
Number of year for 3 times of population (n)
Computation:
Assume;
Current population = P
So,
New population = 3P
A = p(1+r)ⁿ
3P = P(1+0.45)ⁿ
3 = (1.45)ⁿ
n = 2.96 year
n = 3 Year (Approx)
HI PLSS HELP THIS IS DUE IN 15 MINS AND PLS SHOW WORK TYY
find all the missing angles
Answer:
its #####
Step-by-step explanation:
first you have to##### and then you pls give me points because a need help with some stuff
What is -9r+10r simplified?
-4(9r+10)+5(10r+7)
Multiply the first bracket by -4
Multiply the second bracket by 5
(-4)(9r)(-4)(10)
=-36r-40
(5)(10r)+(5)(7)
=-50r+35
-36r-40+50r+35
-36r+50r-40+35 ( rearranging)
14r-5
Answer: 14r-5
Answer:
This is really simple, the answer is 1r, or just r
Step-by-step explanation:
this can also be seen as 10r-9r