Answer:
a. 0.15x
b. 40+0.05x
c. 0.15x=40+0.05x
15x=4000+5x
x=400 min
15. The floor plan of the basement of a shopping centre is drawn to a scale of 1:400.
If a supermarket has an area of 0.25 m² on the plan, find its actual area in hectares. (1 hectare = 10 000 m²)
Answer:
4 hectaresStep-by-step explanation:
The scale factor is:
k = 1/400Applied to the area we consider k² as the area is the product of two dimensions.
Find the actual area:
0.25 m² : (1/400)² = 0.25 m² * 160000 = 40000 m² = 40000 * 1/10000 hectares = 4 hectaresFind the function f(g(x)) if f(x) = x^2 + 2x. Given g(x) = x + 1. Also find f(g(2)) = f(2).
Please provide an explanation as well. Thank you! :)
Find the number that makes the ratio equivalent to 35:42
16
Answer:
5:6
Step-by-step explanation:
35:42
42/ 6 = 7
35/7 = 5
Answer:
35:42
Step-by-step explanation:
I am literally struggling lol
Answer:
The blank space is 2.
Answer:
2
Step-by-step explanation:
9*22 = 198
(9*20) + (9*2)
= 180 + 18
= 198
Can somebody help me with questions 11 and 12 I’ll appreciate it!
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 help me with this
Select all ratios equivalent to 2:3.
Answer:
12:18 and 10:12 (i think)
Step-by-step explanation:
After converting the given ratios in their simplest form, the equivalent form of 2:3 we get 12:18.
To find the simplest form of a fraction, you have to simplify the numerator and denominator to their lowest terms and keep dividing until you can no longer simplify the fraction any further.
The given ratios are,
12:18,
3:21,
10:12
For the ratio 12:18,
Simplify it by finding the greatest common divisor (GCD) of 12 and 18.
The GCD of 12 and 18 is 6.
By dividing both numbers by 6, we get the smallest ratio of 2:3.
Moving to the ratio of 3:21,
Find the GCD of 3 and 21, which is 3.
Dividing both numbers by 3 results in the smallest ratio of 1:7.
Find the smallest ratio for 10:12.
The GCD of 10 and 12 is 2.
Dividing both numbers by 2 gives us the smallest ratio of 5:6.
Hence, the simplest form of ratios for the given ratios are:
12:18 = 2:3,
3:21 = 1:7,
10:12 = 5:6.
Hence,
The ratio equivalent to 2:3 is 12:18.
Learn more about the ratio visit:
https://brainly.com/question/12024093
#SPJ6
Please get right and do quick
Answer:
h = S/(2 π r) - r
Step-by-step explanation:
Solve for h:
S = 2 π r (r + h)
S = 2 π r (r + h) is equivalent to 2 π r (r + h) = S:
2 π r (r + h) = S
Divide both sides by 2 π r:
r + h = S/(2 π r)
Subtract r from both sides:
Answer: h = S/(2 π r) - r
Answer:
h=s/(2 π r) -r
Step-by-step explanation:
There are 6 red marbles, 9 blue marbles, and 10 green marbles in a bag.
Several trials are performed with the results shown in the table. What is the experimental probability of randomly drawing a red marble?
Red Blue Green
16 30 34
32%
25%
20%
16%
I need help!
Answer:
I would guess 20%
Step-by-step explanation:
16+30+34)/4)x5 (this is how I think u would get it to be 100)
16/4)x5 = 20
20/100 = 20%
Im less certian about this one than the other but if u think its correct u can try it
I WILL MARK AS BRAINLIEST! Simplify
Answer:
a) -42
b) -23
c) -100
d) 45
Answer:
a) | -29 - 13 | = 42
b) | 39 - 62 | = 23
c) | -59 - 41 | = 100
d) | -26 + 71 | = 45
Remember, absolute value refers to a number's distance from zero on the number line, without taking direction into account. A number's absolute value can never be negative.
Hope this helped! :)
Help me mateee or person
The model shows the expression 30 +12. Which expression is equivalent to thi sum?
Answer:
There are many answers to this question like:
7x6
21x2
84/2
27+15
Step-by-step explanation:
If 30+12=42, all you really have to do is check each answer to see if it either adds up to 42, multiplies to get 42, divides to get 42, or subtracts to get 42.
Answer:
6(5+2)
3(10+4)
Step-by-step explanation:
These are just a couple of equivalent sums, I am assuming this is a sort of short response and not a multiple choose so i believe you can use this.
I need help with this
Answer:
What question?
Step-by-step explanation:
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:
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
Which number has a 9 that is 1/10 the value of the 9 in 296?
195
409
981
1,956
Answer:
409
Step-by-step explanation:
This is very easy. First of all you need to workout out 1/10 of the value of the 9 in 296. The value of the 9 in 296 is 90.
1/10 of 90 is 9 (since 1/10 x 90 = 90/10 = 9)
The only number which has 9 as its final digit is 409
How can you use 5, 5, 5, 5, to make 24 using addition, multiplication, subtraction, or division, but without using other numbers.
Step-by-step explanation:
5×5×5=125
125-5=120
120÷5=24
Step-by-step explanation:
I WILL MARK AS BRAINLIEST! Find the area and perimeter of the following figures
Step-by-step explanation:
it is really not complicated. we only need to type the numbers into the calculator.
so, what's the problem ? you don't know what a perimeter is ? it is the circumference, the total way you have to go when waking all around the figure.
you don't know the formulas for the areas of specific figures ?
let's start :
a)
the area of a rectangle is length×width. I hope you know this at least since first grade.
the important thing here is : the result is in² and not just in. it means an area counts the little squares that fill that area.
A = 30×8 = 240 in²
the perimeter, as explained, is the whole way around it. so, in the end, as you can easily see, we would have to go 2 times the long side and 2 times the short side.
the result is in (just a length, a distance not an area, not a cube, ...).
P = 2×30 + 2×8 = 60 + 16 = 76 in
b)
the area of a triangle is
baseline × height / 2
in this case (a right-angled triangle) we can assume one of the sides enclosing the 90 degree angle as baseline and the other as height (since there is already a 90 degree angle between them).
and again, the result is ft². we could express it also e.g. as in², but since the basic measures are in ft, it makes it better understandable to use ft².
A = 12×5/2 = 6×5 = 30 ft²
the perimeter is even easier than for the rectangle, as we have one side less to count.
and as before, we stay with ft.
P = 12 + 13 + 5 = 30 ft
c)
this is the only more special case.
but it is still easy.
the area is baseline × height.
and our unit of measurement here is cm, so the result will be cm².
A = 10×2 = 20 cm²
the perimeter is the same principle as with a regular rectangle, as the angles don't matter. only the side lengths matter.
so, again, while waking around it, we have to pass 2 times the long side and 2 times the short side.
and the result is a length, a distance again, so, it is cm.
P = 2×10 + 2×4 = 20 + 8 = 28 cm
Find the unit rate.
42 apartments on 3 floors
apartments per floor
Answer:
7
Step-by-step explanation:
Answer:
The answer is 14.
Step-by-step explanation:
All you have to do to figure this problem out is to divide 42 by 3. I hope this helps! :)
pleasee helppp 15 pointss pleaseee
Find the number that makes the ratio equivalent to 11:4.
44:
Answer:
16
Step-by-step explanation:
11:4
44;x
11x4=44
4x4=16
Answer:
44:16
Step-by-step explanation:
11:4
44:x
44/11=4
4x4=16
11:4
44:16
Complete both Part A and Part B.
Part A:
Jason buys a pair of pants for $28.97, a top for $12.82 and a scarf for $9.18. He has a gift card worth $75. If the sales tax on the purchase is $3.19, what is the total of his purchase?
Part B:
Will he have enough money left to buy a hat for $27.15?
Explain your answer.
Find the unit rate.
20 seats in 4 rows =
seats per row
Answer:
8 should be the answer
Step-by-step explanation:
Answer the question in the pic pls. Don’t answer unless you are sure if your answer
Answer:
its 20
Step-by-step explanation:
-2 -3 2 3 least to greatest
Answer:
-3, -2, 2, 3
Step-by-step explanation:
Answer:
Step-by-step explanation:
-3, -2, 2, 3
pls help this is due tmrw!! i will give brainliest :)
Answer:
C integers
Step-by-step explanation:
Becoz postive and negative numbers makes integers.
Answer:
A
Step-by-step explanation:
ny number in the form of p/q where p and q are integers and q is not equal to 0 is a rational number. Examples of rational numbers are 1/2, -3/4, 0.3, or 3/10.
Please help! Greatly appreciated. Thank you!
Answer: Q(7,-2), S(-3,6)
Step-by-step explanation:
Which fraction equals the ratio of rise to run between points (0, 8) and (-4, 3)?
Answer:
y = 5/4x + 8
Explain Your Answer
Simplify the expression.
[tex]( \frac{1}{4} gh) ^{3} = \frac{ {g}^{3} {h}^{3} }{64} [/tex]
I hope I helped you^_^
Answer:
((1/4g)(h))^3
=1/64 g^3 h^3
Step-by-step explanation:
Circle question of the rug
That you needed answer for is ;
3/4 pi^2
Step-by-step explanation:
Proof 1/4 pi r^2
We can state the radius of small rug is 3ft
to show Area pi 3^2 = pi 9
If the large rug is 3x this size
then pi 9^2 = pi81
So the ratio here is 1 : 9 when 3 cm or 1 : 3 radius
Ratio is 1 : 9 when 1cm or 1 : 3 radius
When 1 : 9 cm when 5cm or 1 : 3 radius
So if we are considering an expression of the larger rug
that shows 3: 1 more radius to that of the small.
1/4 pi^2 becomes 3/4 pi^2 of the smaller rug
As this is 3 x 1/4 pi^2 we show 3/4pi r^2
