Answer:
? = 4
Step-by-step explanation:
2/13 + ?/13 = 6/13 (Given)
-2/13 -2/13 (Isolate the unknown through subtraction)
?/13 = 6/13 - 2/13
?/13 = 4/13 (Combine like terms)
? = 4
Because the demoninators are the same, the unknown value can be found using isolation techniques. To find the unknown, subtract 2/13 from both sides. This eliminates the 2/13 from the right side while obeying the rule that states that what is done to one side must to done to the other. This leaves the ?/13 by itself on the right and 4/13 on the left. Again, because the demoninators are identical, the unknown value must be 4.
Kalyue drew a rectangle with a perimeter of 20 inches. Then he tried to draw a square with a perimeter of 20 inches. What are the dimensions of square with a perimeter of 20 inches?
Step-by-step explanation:
a square has 4 identical sides.
so, when you have to "walk" around the perimeter of a square you have to go 4 times the same distance.
therefore
20 = 4×side length
side length = 20/4 = 5 in
it is a 5 in × 5 in square.
FYI a rectangle has 2 pairs of sides that are equally long inside their pair.
and so you have in this case a perimeter of
2×6 + 2×4 = 12 + 8 = 20 in
Use the bar graph below to answer the following question.
Which girl is the shortest?
Answer:
ling
Step-by-step explanation:
you just have to compair the girls
and from the bar gragh ling is he sortest.
I need help on this question I don’t get what it’s asking what so ever
Answer:
y=4
Step-by-step explanation:
The question is asking what is the value of y:
Since all lengths have a dash on them they are all equal :
So 3y = y+8
3y = y + 8
First we subtract y from both sides:
3y-y = y+8-y
2y = 8
Divide both sides by 2:
2y÷2 = 8÷2
y = 4
Answer:
Step-by-step explanation:
The question is asking you to find the value of y in a square.
A square has same length in all sides so we can achieve that:
y+8 is equal to 3y
simplifying that, we find out the answer is 4. How?
We have previously acheived that:
y+8=3*y
So we need to find y using these steps:
1. Subtract 3y from both sides:
y+8−3y=3y−3y
−2y+8=0
2. Divide both sides by -2:
y=4
On a number line, which fraction is between 1/4 and 1/5?
Answer:
7/32
Step-by-step explanation:
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
To find a fraction between 1/4 and 1/5:
1. Make common denominators with both fractions. The larger the common denominator, the more you will find.
2. Choose any fraction between 1/4 and 1/5. That fraction will be in between 1/4 and 1/5.
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
[tex]\dfrac{1}{4}\ \text{and }\dfrac{1}{5} \ \rightarrow \ \dfrac{1 \times 40}{4 \times 40} \ \text{and} \ \dfrac{1 \times 32}{5 \times 32} \ \rightarrow \ \dfrac{40}{160} \ \text{and} \ \dfrac{32}{160}[/tex]
Now, you may choose any fraction between 40/160 and 32/160.
My chosen fraction is 35/160, which when simplified, gives 7/32.
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Answer:
[tex]\dfrac{9}{40}[/tex]
Step-by-step explanation:
Subtract 1/5 from 1/4, divide by 2, then add to 1/5:
[tex]\implies \dfrac{\frac14-\frac15}{2}+\dfrac15[/tex]
[tex]\implies \dfrac{\frac{5}{20}-\frac{4}{20}}{2}+\dfrac15[/tex]
[tex]\implies \dfrac{\frac{1}{20}}{2}+\dfrac15[/tex]
[tex]\implies \dfrac{1}{20} \times \dfrac12+\dfrac15[/tex]
[tex]\implies \dfrac{1}{40}+\dfrac15[/tex]
[tex]\implies \dfrac{1}{40}+\dfrac{8}{40}[/tex]
[tex]\implies \dfrac{9}{40}[/tex]
The scale of a model train is 1 inch to 15 feet. One of the cars of the model train is 3.7 inches long. What is the length, in feet, of the actual train car?
Answer:
35.7
Step-by-step explanation:
1 inch = 15ft
15x3= 35
and the .7 is added
35.7 ft I think
What is BC?
Enter your answer in the box.
Answer:
BC = 25
Step-by-step explanation:
I'm gonna assume that the triangle is an isosceles triangles, so sorry if this doesn't help!
4x + 1 = 2x + 23
2x + 1 = 23
2x = 22
x = 11
3(11) - 8
33 - 8
= 25
Which of the following expresses a potential difficulty with preference ballots?
Preference ballots only list one candidate per elected position.
Preference ballots are seldom used and difficult to produce.
The results of preference ballots can be time-consuming to compile.
It is easy to commit voter fraud by falsifying preference ballots.
The results of preference ballots can be time-consuming to compile
The potential difficulty with preference ballots expressed in the given options is: The results of preference ballots can be time-consuming to compile.
What is preference ballot?A preference ballot is a type of ballot used in elections where voters indicate their order of preference for the candidates or options listed on the ballot.
Instead of simply selecting one option, voters rank the options in order of their preference, usually by indicating a first-choice, second-choice, and so on.
Preference ballots require more complex calculations to determine the winner, especially when there are more than two candidates. This can result in delays in announcing the results and can be time-consuming to compile.
Thus, this can result in delays in announcing the results and can be time-consuming to compile.
For more details regarding preference ballots, visit:
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Find X and y
12, 16
Answer:
x = 6√2y = 6√6Step-by-step explanation:
The triangles are all similar, so corresponding sides are proportional.
__
xlong side/short side = x/6 = 12/x
x² = 72 . . . . . . . multiply by 6x
x = 6√2 . . . . . . take the square root
__
yhypotenuse/long side = y/12 = (12+6)/y
y² = 216 . . . . . multiply by 12y
y = 6√6 . . . . . take the square root
What is the area of the polygon? 30cm 21cm 14cm 46cm
Answer:
1,044
Step-by-step explanation:
14 x 46 = 644
16 x 25 = 400
644 + 400 = 1,044
Please Help ! What is the slope of the line?
Answer:
There are 3 ways to find the slope of a line.
I'll use a simple method.
First, let's look at a random point on this line(and make sure it's close to the start of the line).
I'll choose (1,4).
Then, see how much it rises and how far it runs to another fixed point.
Though, in this case we can see that the rise is going down and the run is moving towards the right. So, the slope will be negative since the rise is negative.
You always want to confirm if it'll be a negative or positive slope and which direction the slope is guiding you to.
Now, if we go down 8 and over 3, we'll reach a fixed point of (4, -4).
Therefore, we can infer that the slope of this line will be 8/3.
Answer:
8/3
Step-by-step explanation:
rise over run, only clearly intercepts a point twice.
HELPPPPPPPPPPP
NO LINKS
Answer:
Point W is [tex](-5,-4)[/tex]
Point Z is [tex](-5,6)[/tex]
Hope This Helps! :) Please Give Brainliest if you can!
Answer: Point W is (5, -4 Point Z is (-5,6)
Writing Expressions and Equations the product of 6 and 11
Answer:
The product of 6 and 11 is 66
But what is the reason for this?The product of two or more numbers is the same as multiplying those numbers together. The product will always be the result.
[tex]6 * 11 = 66~or~66 / 11 = 6[/tex]
Notice how the division problem is just the multiplication problem backwards, for the purpose of better understanding.
Hence, the correct answer is 66
Can somebody help me with this?
Answer:
slope = 4/5
Step-by-step explanation:
Take any two points:
(5, 1) & (10, 5)
The slope
[tex]m=\frac{5-1}{10-5} =\frac{4}{5}[/tex]
Hope this helps
Answer:
4/5 is the slope of the line
Which system of linear equations represents the situation?
The Martin family pays $12 per hour to a babysitter. They also give her
a $7 tip. The Bagley family pays $15 per hour to a babysitter. The
Bagley family's babysitter pays $8 to order a pizza.
Let h represent the number of hours of babysitting and m represent
the total amount of money each babysitter earns.
Answer:
so many just add them 12+7+15+8=
Answer:
m=12h+7
m=15h-8
Long-billed curlews eat many different kinds of insects, including grasshoppers, as a source of food. It has been shown that pesticide use kills many of these insects. How would you expect an increase in pesticide use to affect to the population of long-billed curlews in the same area
An increase in the use of pesticides in the same area would lead to the population of long - billed curlews decreasing.
How will the population of long-billed curlews be affected by pesticides ?An increase in pesticide use that kills many of the insects that long-billed curlews eat, such as grasshoppers, would likely have a negative impact on the population of long-billed curlews in the same area.
Since grasshoppers and other insects are a primary food source for long-billed curlews, a decline in insect populations due to pesticide use could lead to reduced food availability and increased competition for remaining food sources. This could lead to decreased population size and potentially even local extinctions.
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The illustration below shows the graph of
y
yy as a function of
x
xx.
Complete the following sentences based on the graph of the function.
(Enter the
x
xx-intercepts from least to greatest.)
This is the graph of a
function.
The
y
yy-intercept of the graph is the function value
y
=
y=y, equals
.
The
x
xx-intercepts of the graph (in order from least to greatest) are located at
x
=
x=x, equals
and
x
=
x=x, equals
.
The greatest value of
y
yy is
y
=
y=y, equals
, and it occurs when
x
=
x=x, equals
.
For
x
xx between
x
=
2
x=2x, equals, 2 and
x
=
6
x=6x, equals, 6, the function value
y
yy
0
00.
This is the graph of a NON-LINEAR FUNCTION
The y intercept of the graph is the function value y=-6
The x intercepts of the graph are located at x=2 and x=6
The greatest value of y is y= 2 and it occurs when x=4
For x between x=2 and x=6, the function value y≥0
Hope this helped :>
Find the volume of a cone with a diameter of 6 and a height of 16
Answer:
150.79645
Step-by-step explanation:
Fist of all half of your diameter is your raduis which is how you get three
V=πr2h3=π·32·163≈150.79645
Answer:
150.8
Step-by-step explanation:
v= (πr^2h)/3
r=6/2=3
3^2xπx16=ans
ans/3=150.8
5.000g rounded to the nearest whole gram
Answer:
5 g hope this helps
Given the figure below with mBFA = 166° and mBD = 88°, what is Help
Answer:
it should still be 166
Step-by-step explanation:
because bfa should be the same as bda
that's what i learnt about this
but i did this a long time ago so im about 70 percent sure that this is correct
Solve this pls 4x+32=5x-22
Answer:
54
Step-by-step explanation:
4x + 32 = 5x -22
Group like terms
32 + 22 = 5x - 4x
54 = X
X = 54
Answer:
x = 54
Step-by-step explanation:
4x + 32 = 5x - 22
5x - 4x = 32 + 22
x = 54
To clarify this,
(4 x 54) + 32 = 248
(5 x 54) - 22 = 248
If B is the midpoint of AC, and AC=8x-20,find BC
Answer:
BC = 0.5 * AC
Step-by-step explanation:
Since B is the midpoint
A road is 4350m long, correct to the nearest 10 metres. Kirsty drove along the road in 205 seconds, correct to the nearest 5 seconds.
The average speed limit for the road is 80km/h
Could kirsty’s average speed have been greater than 80km/h?
Kirsty's Average speed is not greater than 80km/h
What is speed?Speed is the rate of change of distance.
Analysis:
length of road = 4350m = 4350/1000km = 435/100km
time taken = 205 seconds = 205/3600 hour
Her Speed = 435/100 ÷ 205/3600 = 435/100 x 3600/205 = 76.4km/h
In conclusion, Kirsty's average speed is not greater than 80km/h.
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Helppppppp pls :))))))))
Answer:
g(x) = 1 * (x + 1)^2
Step-by-step explanation:
Answer:
g(x) = 1 * (x + 1)^2
Step-by-step explanation:
For any value of x, the sum
3
∑ k(2x-1)
k=0
is equivalent to
The equivalent value of the sum for any value of "x" is 12x - 6
How to find the sum of functions?Given the sum of the expression as:
3
∑ k(2x-1)
k=0
We need to take the sum of the function at the point where k = 0 to 3
3
∑ k(2x-1) = 0(2x-1) + 1(2x - 1) + 2(2x-1) + 3(2x - 1)
k=0
3
∑ k(2x-1) = 2x-1+4x-2+6x-3
k=0
3
∑ k(2x-1) = 12x - 6
k=0
Hence the equivalent value of the sum for any value of "x" is 12x - 6
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AABC is equilateral.
AB = 11x and AC = 3x + 64.
=
PLEASE HELP
What steps do I need to take to solve the last part of this equation and how do I solve them using the quadratic formula?
Answer:
simplify the radical
Step-by-step explanation:
You have shown the solution using the quadratic formula.
The final step is to simplify the radical expression. That is done by factoring out perfect squares and simplifying the fraction.
[tex]x=\dfrac{\pm\sqrt{120}}{12}=\dfrac{\pm\sqrt{2^2\cdot30}}{12}=\dfrac{\pm2\sqrt{30}}{12}\\\\x=\dfrac{\pm\sqrt{30}}{6}=\left\{\dfrac{1}{6}\sqrt{30}\,,\ -\dfrac{1}{6}\sqrt{30}\right\}[/tex]
_____
Additional comment
0 is the additive identity element, so adding or subtracting zero changes nothing.
[tex]0\pm\sqrt{120}=\pm\sqrt{120}[/tex]
does anyone know what the questions are for module 3 algebra dba
Answer:
no
Step-by-step explanation:
I never knew u had dba for math
PLEASE HELP WILL MARK BRAINLIST
If the ratio of the rectangular prisms' volumes is 1:8, what is j?
l i k e i s a i d 8th grade math
Answer:
A.
Step-by-step explanation:
In a direct proporton, the ratio of one quantity to teh other is a constant.
Let's divide each number of crystals by each number of pounds:
7/14 = 1/2
14/28 = 1/2
21/42 = 1/2
28/56 = 1/2
The ratio of crystals to pounds is always 1:2.
This is a proportional relation.
Answer: A.
Explain the error and solve with correct step.
-5x + 9 - 9x < 21
-4x + 9 < 21
-4x < 12
x > -3