Question:- Write ⅝ as a percent
Answer:-
[tex] \frac{5}{8} [/tex]
For making it in percentage we need to multiple the fraction with 100
[tex] \frac{5}{8} \times 100\% \\ \frac{5}{ \cancel{8} {}^{ \: \: \: 2} } \times \cancel{100} {}^{ \: \: \: 25} \\ \frac{5 \times 25}{2} [/tex]
Now we will multiple and divide the above equation with 5 for easy solution. Or you can just divide the equation upto decimal for your answer
[tex] \frac{125}{2} \times \frac{5}{5} \\ \frac{625}{10} \\ 62.5 \: \% \: \: ans[/tex]
So your options (B) 62.5% is correct
Rafael wants to wallpaper the back wall of his bedroom. The wall is in the shape of a rectangle. Its length is 13 feet and its width is 9 feet. Suppose wallpaper costs $7 for each square foot. How much will wallpaper cost for the wall?
Answer:
$819
Step-by-step explanation:
First we find the area of the wall so we multiply 13ft x 9ft.
13ft x 9ft = 117ft
We know each square foot is equal to $7. So now we multiply 117 x 7 to get the total cost.
117 x 7 = $819
Calculate the Mean: 24, 27, 31, 21, 27
Answer: 26
Step-by-step explanation:
mean is the same thing as finding the average
you add up all the numbers then divide by the amount of numbers there are
24+27+31+21+27=130
130\5=26
Find the size of each missing angle. (image attached)
Answer:
a is right angle
Step-by-step explanation:
3 fewer than a number squared and four
Answer:
([tex]n^{2}[/tex]+4)-3
Step-by-step explanation:
since it says "and four" i think it means it is in parenthesis
Answer:
n^2 + 1
Step-by-step explanation:
Let the unknown number be n. Then "a number squared and four" is
n^2 + 4, and 3 fewer than this result is
n^2 + 3 - 3, or n^2 + 1
PLEASE SOLVE ALL OF THE QUESTIONS IN FULL
Help!
Write 3*3*3*3 in exponential form.
Answer:
3⁴
Step-by-step explanation:
3*3*3*3 is equal to 3⁴
I WILL MARK AS BRAINLIEST! Write an Equation that represents the points in the table
Answer:
y= -x+2
Step-by-step explanation:
Using the equation, y = mx+b, you know you have to find the slope. Find the slope using two coordinate points, (-2,4) and (0,2).
Subtract 2-4/0+2 - the answer is -1. Your slope is -1 and the y axis is given so the equation is y=-x+2
The Mediterranean climate is one of the:
polar climates
low-latitude climates
maritime climates
mid-latitude climates
its one of the maritime climates
I WILL MARK AS BRAINLIEST! Solve for X and Y
Answer:
9)-1=x+19
-x =19+1
-x=20
-x÷-1=20÷-1
x=20.
Answer:
Step-by-step explanation
Find the number that makes the ratio equivalent to 11:77.
:7
Answer:
1
Step-by-step explanation:
divide both side by 11 and you get 1:7
Answer needed WITH explanation asap
Answer:
14
Step-by-step explanation:
5x + 2 + 48 = (180-120)+30 +30
5x+50 = 60+30+30
5x+50=120
5x=120-50
5x = 70
x = 70/5
x = 14
I WILL MARK BRAINLIEST! Solve for X
Answer:
Step-by-step explanation:
You are to assume in both problems that the two triangles are similar. That is a very dangerous assumption -- especially in later math classes. But in this case, there is no other way to do the problem. The two sets of triangles look like they are proportional. So set up two ratios that are = to each other
On the left
long side small triange / long side large triangle = base small triangle / base large triangle
On the right
hypotenuse/longest leg = hypotenuse / longest leg.
Problem A
Set up the similar Proportion
5/40 = x/20 Cross Multiply
40x = 20*5
40x = 100 Divide by 40
x = 100/40
x = 2.5
Problem B
Again set up the similar triangle proportion
15/10 = x/2 Multiply by 2
15*2/10 = x
3 = x
Find the number that makes the ratio equivalent to 45:15.
:3
Answer:
9
Step-by-step explanation:
45/15=x/3
3*3=x
x=9
Answer:
3*5=15 so __*4=45 so answer is 45/5=9
Step-by-step explanation:
find the exact coordinates of X on segment JK that is 1/3 the distance from j to k. J (-1,4) K(5,-3)
Answer:
ee
Step-by-step explanation:
e
HELP ME PLEASE im gonna fail lol
Help me Guess just help please
- 8th Grade Math -
How many grams each of a 10% salt solution and a 5% salt solution must be mixed in order to obtilain 400 grams of an 8% solution? (10% = 10/100)
Answer:
240g of 10% salt solution and 160g of 5% salt solution
Step-by-step explanation:
Simpler way:
Let X be the amount of 10% salt solution and Y be the amount of 5% salt solution.
Then X:Y = 3:2 as you need more 10% salt solution than 5% salt solution to create a 8% salt solution. The ratio 3:2 is given as 10 - 8 = 2 and 8-5 = 3.
If X:Y = 3:2 = 60:40, then 60% of the 400g of 8% salt solution must be the 10% solution and 40% of the 400g of 8% salt solution must be the 5% solution. Therefore, 240g of the 10% salt solution and 160g of the 5% salt solution is needed to create 400g of the 8% salt solution.
This is correct as the amount of salt in the solution is equal to (10% X 240g = 24g) + (5% of 160g = 8g). So the total amount (24+8) 32g should be equal to the amount of salt in the 400g of 8% salt solution.
8% of 400g = 32g which means our answer is correct.
More complex way:
A more complex way is to use algebra.
Let X be the amount of 10% salt solution and Y be the amount of 5% salt solution.
X + Y = 400g
and 10% of X + 5% of Y = 8% of 400
so 1/10 X + 1/20 Y = 32
2X + Y = 640 (multiply the previous equation by 20)
Now from the first line we know that X + Y = 400
So if we subtract (2X+Y) by (X+Y) we can get the value of X:
(2X+Y) - (X+Y) = 640 - 400
2X+Y - X - Y = 240
Therefore X = 240
And since X + Y = 400, Y = 160.
At a college, the cost of tuition increased by 10%. Let t, represent the former cost of the tuition. What is the new cost of tuition?
please help thank u!!
Answer:
[tex]2x^3-3x+4+\frac{5}{3x-5}[/tex]
Step-by-step explanation:
Use polynomial; long division to divide the two polynomials. Remember to put each polynomial in standard form, or rather organize each polynomial by their degree (exponent). The polynomial with the highest exponent will go first, then each with its varying exponent will suceed.
_____[tex]\underline{2x^2\ \ -\ \ 3x\ \ +4}[/tex]
[tex]3x-5[/tex] | [tex]6x^3 - 19x^2+27x-15[/tex]
[tex]\underline{-6x^3+10x^2}[/tex]
[tex]-9x^2+27x[/tex]
[tex]\underline{+9x^2-15x}[/tex]
[tex]12x-15[/tex]
[tex]\underline{-12x+20}[/tex]
[tex]5[/tex]
What is the equation of the line?
Answer:
y = 1/2 - 3/2
Step-by-step explanation:
All we need to do is find the y-intercept of the line using the formula for slope intercept form [ y = mx + b ].
-3 = 1/2(-3) + b
-3 = -1.5 + b
-1.5 = b
We can put all the information we know/solved for into the formula.
y = 1/2 - 1.5
Best of Luck!
Answer:
The equation of the line is y = 1/2x - 3/2
Step-by-step explanation:
Plug in point (-3, 3) with slope 1/2 into y = mx + b
-3 = 1/2(-3) + b
-3 = -3/2 + b
+3/2 +3/2
-------------------
-3/2 = b
hence, y = 1/2x - 3/2
Classify 3
a. Natural, whole, integer, rational
b.whole, rational
c.integer
d. rational
Find the area of each parallelogram.
Find two consecutive perfect squares that 3 is between.
Answer:
1^2 and 2^2
Step-by-step explanation:
1^2 is 1
2^2 is 4
3 is a number in between
Answer:
1 and 4 or [tex]1^{2} and 2^{2}[/tex]
Step-by-step explanation:
[tex]1^{2}[/tex] = 1
[tex]2^{2}[/tex] = 4
The number that comes in between is 1 and 4 is 3.
please helpp me i'm kinda not smart in da head
Answer:
the answer would be C.
Step-by-step explanation:
C is your answer
Answer:
answer b
Step-by-step explanation:
A 100-meter sprint is a race using only the straight side of a race track. A 400-meter stick is a race that makes one complete a lap around a racetrack. Why are velocity and speed the same for a 100 m sprint but not a 400 m sprint
Answer
Because velocity and speed differ each other by direction, in a 100 m sprint race the person moves in a straight path without changing its direction where as in a 400 m race. The person moves in a lap around the race track and the direction changes as he turns according to the race track.
Step-by-step explanation:
<3
Subtract -1 3/5 ( -2 5/8 ) enter your answer as a simplest fraction by filling in the boxes
Answer:
21/5
Step-by-step explanation:
Answer:
1 [tex]\frac{1}{40\\}[/tex]
Step-by-step explanation:
i hope this helps :0
what are 3/4 equivalent to?
Answer:
6\8
Step-by-step explanation: Because 3/4 times 2/2 is 6/8
Evan's pizzeria made 4 thin-crust pizzas and 30 thick-crust pizzas. What is the ratio of the number of thick-crust pizzas to the total number of pizzas?
Answer:
30:34
Step-by-step explanation:
30 = thick crust pizza
4 = thin crust pizza
total = 34
=
30:34
Treya practices typing 1/8 hour each day. How many hours does Treya practice typing in 3 days?
Answer:
3/8
Step-by-step explanation:
In 1 day = 1/8
In 3 days = 1/8 x 3 = 3/8
Answer:
It is ⅜ hours
Step-by-step explanation:
[tex]{ \sf{1 \: day = \frac{1}{8} \: hours}} \\ \\ { \sf{3 \: days = (3 \times \frac{1}{8} ) \: hours}} \\ \\ = \frac{3}{8} \: hours[/tex]
triangle ABC △ABC triangle, A, B, C is rotated -120° about point P create ΔA' B' C'
Answer:
40°
Step-by-step explanation:
Since triangle ABC is identical to triangle A'B'C', it has the same measures of respective sides and angles, and ang A is therefore equal to angle A'.
After rotational transformation, the measure of angle ∠A' = 40°.
What is a rotation transformation?A rotation is a transformation that turns the figure in either a clockwise or counterclockwise direction on the coordinate plane. In both transformations the size and shape of the figure stays exactly the same.
For the given situation,
The diagram shows the two triangles.
Triangle ABC is the original triangle and A'B'C' is the triangle obtained after the rotation of -120°.
From the definition, in rotational transformation the size and shape of the figure stays exactly the same. Then the angle measures are also remains the same.
Thus the measure of angle A' is [tex]\angle A' = \angle A = 40[/tex]
Hence we can conclude that after rotational transformation, the measure of angle ∠A' = 40°.
Learn more about rotation transformation here
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