Answer:
if u have any doubts feel free to ask :)
Step-by-step explanation:
Sum of ratio : 9 + 7 + 4 = 20
a)
Adele share :
[tex]\frac{9}{20} \times 680 = 9 \times 34 = \$ 306[/tex]
b)
Barbara share :
[tex]\frac{7}{20} \times 680 = 7 \times 34 =\$ 238[/tex]
Collette share :
[tex]\frac{4}{20} \times 680 = 4 \times 34 = \$ 136[/tex]
c)
$ €
1.125 1
306 x
[tex]\frac{1.125}{306} = \frac{1}{x}[/tex] [cross multiply]
[tex]x =\frac{ 306} {1.125}[/tex]
x = €272
Adele receives = €272
d)
Apple Cost
1 kg 2.69
5 kg y
y = 2.69 x 5 = $13.45
Cost of 5kg of apples = $13.45
Cost of 3 kg bananas = 17.56 - 13.45 = $4.11
Banana Cost
3kg 4.11
1 kg z
[tex]z = \frac{4.11}{3}[/tex]
z = $1.37
Cost per kilogram of banana = $1.37
e) Collette share = $136
Half of it on clothes = (1/2) x 136 = $68
(1/5) of her share on books = (1/5) x 136 = 27.20
Balance amount with her = 136 - 27.20 - 68 = $ 40.80
solve by factoring
please help this is timed :(
Answer: X1= 4, X2= 7
Step-by-step explanation:
Find the vertex of the given function y=x^2+6x+8.
A.(4,2)
B.(-4,-2)
C.(-3,1)
D.(-3,-1)
Answer:
Option D is correct
Step-by-step explanation:
Hope it is helpful...
Which expression is equivalent to n+n+n+n
PLS ANSWER ASAP DUE AT 9:15
Answer:
B
Step-by-step explanation:
4n = n + n + n + n
Answer:
4n
Step-by-step explanation:
n+n+n+n
since all bases are same ( can also be said as they are like terms) u can add them.
=4n
it cash price of a laptop $1 299 it can be bought on hire purchase
Answer:
explain more but if you meant the price of the can raise it indeed can due to the pieces in it and brand.
Step-by-step explanation:
In a village there are 8 water tanks to collect rain water. On a particular day, x litres of rain water is collected per tank. If 100 litres of water was already there in one of the tanks, what is the total quantity of water in the tanks on that day?
Answer:
(8x + 100) litres
Step-by-step explanation:
According to the question,
Given, In a village there are 8 water tanks to collect rainwater. On a particular day, x litres of rainwater is collected per tank. If 100 litres of water was already there in one of the tanks.Therefore,
Number of water tanks = 8
Rainwater collected by each tank = x litres
∴ Rainwater collected by 8 tanks = 8x litres
But, 100 litres of water was already there in one of the tanks.
So, the amount of water in the tanks = (8x + 100) litresHELP PLEASEEEEEEEEEEE
Simplify (2 − + 1) + 5 and find its value for a = -2.
Answer:
Part A
a·(a² - a + 1) + 5·a = a³ - a² + 6·a
Part B
The value of a·(a² - a + 1) + 5·a, for a = -2 is -24
Step-by-step explanation:
Part A
The given function is a·(a² - a + 1) + 5·a
The function is simplified by expanding the product of sums into sums of products, as follows;
a·(a² - a + 1) + 5·a = a × a² - a × a + a × 1 + 5·a = a³ - a² + a + 5·a = a³ - a² + 6·a
The function, a·(a² - a + 1) + 5·a, in simplified format is therefore;
a·(a² - a + 1) + 5·a = a³ - a² + 6·a
Part B
When a = -2, we get;
(a³ - a² + 6·a)[tex]_{a = 2}[/tex] = (-2)³ - (-2)² + 6·(-2) = -8 - 4 - 12 = -24
Which of the values is the best estimate of the correlation coefficient for the line of best fit shown in the scatter plot?
0.9
0.4
-0.4
0.9
The correlation coefficient that would best describe the line of best fit shown in the scatter plot is 0.9 which is a weak positive correlation.
What is correlation?The statistical concept of correlation describes how closely two variables move in tandem with one another.
We can see that Slope is not near to horizontal, thus Correlation Coefficient will be greater than 0.5
Since the value of X axis is get increased, then the value of Y axis is also increasing.
According to the graph is scattered in such a way that, if we draw a line from the centre, we can observe that as 'x' increases 'y' also increases, then the relation is positive correlation.
Therefore, the given scatter plot shows positive weak correlation with value 0.9 .
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if we want to round 1.4279 to two decimal places, then what is the critical digit?
Answer:
1.43 is the answer when you round it 2 decimal places
Step-by-step explanation:
hope this helps
If a probability distribution is
1 /10, 1/5, 1/2what is the value of x?
A.3/10
B. 1/10
C.1/5
D.3/5
Which of the following has the largest y-intercept?
Answer:
I would say 2 because if you go by absolute value it is the largest.
1/4x1/2x1/3
help pls hurry
1/4x1/2x1/3=1/ (4×2×3)
=1/24
Answer: 1/24
Can someone help me i keep getting different answer!!
Answer:
The second option: 3 (6 - 5n)/20n
Step-by-step explanation:
Make sure all fractions have a common denominator:
Step 1. Find a common multiple between all three denominators
5, 4, and 10 all have a common multiple of 20. Proof: 5 × 4 = 20, 4 × 5 = 20, and 10 × 2 = 20
Step 2. Multiply the denominators to get to 20. Whatever you do to the bottom (denominator) must be done to the top (numerator).
1/5n × 4/4 = 4/20n
3/4 × 5n/5n = 15n/20n
7/10n × 2/2 = 14/20n
Your fractions now all have a common denominator of 20n.
Rewrite the equation using the new fractions:
4/20n - 15n/20n + 14/20n
Only focus on adding/subtracting the numerators; the denominators will stay the same: 20n.
(4 - 15n + 14)/20n
Combine like terms:
(18 - 15n)/20n
Factor out any numbers possible:
3(6 - 5n)/20n
Note* 3 go into both 18 and 15, which allows us to factor 3 out. 18 ÷ 3 = 6 and 15 ÷ 3 = 5, giving us our new numbers inside the parentheses.
I need help............
Problem 39
Because AB is parallel to DC, this means the consecutive interior angles B and C are supplementary (these angles are adjacent to either parallel line). They add to 180 degrees.
B+C = 180
107+C = 180
C = 180-107
C = 73
Answer: 73 degrees====================================================
Problem 40
We use the same idea from earlier. This time we have two pairs of parallel lines instead of one pair. Adjacent angles in any parallelogram always add to 180.
R+I = 180
If R = 70, then angle I = 180-R = 180-70 = 110
If angle I = 110, then angle N = 70 (because I+N = 180)
If angle N = 70, then angle G = 110 (because N+G = 180)
As you can see, opposite angles of a parallelogram are always congruent.
Answer:angle I = 110angle N = 70angle G = 110find the surface area. 3in. 2in. 6in. 2in. 4in.
Answer:
I think it's 4in is my answer
Find the length of the third side. If necessary, write in simplest radical form
Answer:
[tex] \sqrt{19} [/tex]
Step-by-step explanation:
Pythagoras
c² = a² + b²
with c being the Hypotenuse (= the side opposite of the 90 degree angle).
=>
10² = 9² + b²
100 = 81 + b²
19 = b²
b = sqrt(19) (≈ 4.36)
You need to get to class, 200m away, and you can only walk in the hallways at about 1.5m/s. How much time will it take you to get to class?
Time = distance/speed
Answer:
133.3 repeated
Step-by-step explanation:
just divide distance and speed then you get your answer, which is 1.33.3 minutes and if you need to simplify then it would be About 2 hours and 13 minutes
A rectangle has an area of 24 square meters. The width of the rectangle is 4 meters. What is the length of the rectangle? meters
Answer:
6 meters
Step-by-step explanation:
Use the area formula, A = lw, where l is the length and w is the width.
Plug in 24 as the area and 4 as the width, then solve for the length (l):
A = lw
24 = l(4)
Divide each side by 4:
6 = l
So, the length of the rectangle is 6 meters
Answer:
6 m
Step-by-step explanation:
Area = width x length
Area= 24m²
Width= 4m
A= wl
24= 4 x l
[tex]\frac{24}{4}[/tex] = l
6m = l
Evaluate: (25/36) ^1/2?
Answer:
5/6
Step-by-step explanation:
"Hot Pizza" is offering a 20% discount on all its pizzas.
Ali orders a pizza for the reduced price of £5.60
What was the original price of the pizza?
Answer:
£6.72
Step-by-step explanation:
10% of 5.60=0.56
0.56×2=1.12
5.60+1.12=£6.72
Drag the tiles to the correct boxes to complete the pair.
Match the pairs of values of f(x) and g(x) with the corresponding values of h(x) if h(x)= f(x)/g(x).
f(x) = x2 - 9, and g(x) = x - 3
f(x) = x2 - 4x + 3, and g(x)= x - 3
f(x) = x2 + 4x - 5, and g(x) = x - 1
f(x) = x2 - 16, and g(x) = x - 4
1.h(x) = x + 5—>
2.h(x) = x + 3—>
3.h(x) = x+4—>
4.h(x) = x-1—>
Answer:
1. h(x) = x + 5—> f(x) = x² + 4x - 5, and g(x) = x - 1
2. h(x) = x + 3 —> f(x) = x² - 9, and g(x) = x - 3
3. h(x) = x + 4—> f(x) = x² - 16, and g(x) = x - 4
4.h(x) = x - 1—> f(x) = x² - 4x + 3, and g(x)= x - 3
Step-by-step explanation:
A) f(x) = x² - 9, and g(x) = x - 3
We are told that; h(x) = f(x)/g(x)
f(x) = x² - 9 can be factorized to;
f(x) = (x + 3)(x - 3)
Thus; h(x) = (x + 3)(x - 3)/(x - 3)
(x - 3) will cancel out to give;
h(x) = x + 3
B) f(x) = x² - 4x + 3, and g(x)= x - 3
x² - 4x + 3 can be factorized as;
(x - 1)(x - 3)
Thus; f(x) = (x - 1)(x - 3)
h(x) = (x - 1)(x - 3)/(x - 3)
h(x) = x - 1
C) f(x) = x² + 4x - 5, and g(x) = x - 1
x² + 4x - 5 can be factorized as;
(x - 1)(x + 5)
Thus; f(x) = (x - 1)(x + 5)
h(x) = (x - 1)(x + 5)/(x - 1)
h(x) = x + 5
D) f(x) = x² - 16, and g(x) = x - 4
x² - 16 can be expressed as;
(x + 4)(x - 4)
Thus; f(x) = (x + 4)(x - 4)
h(x) = (x + 4)(x - 4)/(x - 4)
h(x) = x + 4
Please help I’ll give brainliest
Answer:
Option A 45 x 10^3
Step-by-step explanation:
Please Mark me brainlist
Answer:
45×10^3
Step-by-step explanation:
10^3means =10×10×10=1000
45×10^3=45×1000=45000
hope it helps buddy!!!!
Each year, roughly 10^6 computer programmers each make about $10^5. How much money is this all together?
Answer:
jawbhvgh
Step-by-step explanation:
QJAWNDBSVX
Find the value of x.
15
х
12
Answer:
180
Step-by-step explanation:
Note: Considering X as multiplication and finding the value of multiplication
[tex]15*12\\=180[/tex]
Josh is trying to factor the expression
- 20a - 8 + 12b. He writes
-4 (5a + 2 + 3b)
a. What error did Josh likely make?
b. Factor the expression correctly.
Answer:
a) Josh likely made the negative and positive multiplication error.
b) -20a-8+12b
= -4(5a+2-3b)
Step-by-step explanation:
To check if you are correct, you can always simplify it again:
-4(5a+2-3b)
=-20a-8+12b
Remember:
Negative times negative equals to positive, negative times positive equals to negative!
I hope this is helpful! :)
5. Find CD.
9x-15=7x-1
I really need help with this one.
Answer:
CD = 48
Step-by-step explanation:
Find the value of x using the two equations
9x - 15 = 7x - 1
9(7) - 15 = 7(7) - 1
63 - 15 = 49 - 1
48 = 48
Answer: x = 7
Then get the result of both equations
CD = 48
The length of CD is 48 units.
What is Isosceles Triangle?Isosceles triangles are those triangles which has the length of two sides or angles are equal to each other.
Given triangle ABC is an isosceles triangle since the length of sides AB and BC are given to be equal.
BD is the altitude of the triangle from the vertex B.
We know that, altitude of an isosceles triangle from the non equal angle bisect the opposite side, which is base.
So, AC is bisected at D.
AD = CD
9x - 15 = 7x - 1
Solving,
9x - 7x = -1 + 15
2x = 14
x = 7
Length of CD = 7x - 1 = 49 - 1 = 48
Hence 48 units is the length of CD.
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Write the equation of the line that passes through the points (-6,5) and (3,−5). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.
Answer:
[tex]\displaystyle y-5=-\frac{10}{9}(x+6)[/tex]
Or:
[tex]\displaystyle y+5=-\frac{10}{9}(x-3)[/tex]
Step-by-step explanation:
We want to write the equation of a line that passes through the points (-6, 5) and (3, -5) in point-slope form.
Point-slope form is given by:
[tex]y-y_1=m(x-x_1)[/tex]
Thus, first, we need to find the slope. We can use the slope formula:
[tex]\displaystyle m=\frac{\Delta y}{\Delta x}=\frac{(-5)-(5)}{(3)-(-6)}=\frac{-10}{9}=-\frac{10}{9}[/tex]
Next, we can use either of the two given points. I'll use (-6, 5). So, let (-6, 5) be (x₁, y₁). Substitute:
[tex]\displaystyle y-(5)=-\frac{10}{9}(x-(-6))[/tex]
Or, fully simplified:
[tex]\displaystyle y-5=\frac{-10}{9}(x+6)[/tex]
Using the other point, we will acquire:
[tex]\displaystyle y-(-5)=-\frac{10}{9}(x-(3))[/tex]
Or, simplified:
[tex]\displaystyle y+5=-\frac{10}{9}(x-3)[/tex]
Please solve all with explanation
Answer:
Step-by-step explanation:
4.coordinate points are:
(-2,3)=(x1 , y1)
(1,y)=(x2 , y2)
slope =y2-y1/x2-x1
2=y-3/1-(-2)
2=y-3/1+2
2=y-3/3
do cross multiplication
2*3=y-3
6+3=y
9=y
3 no.
3(1-x)=-2(x-1)
3-3x=-2x+2
3-2=-2x+3x
1=x
4+y/3=2
4+y=3*2
4+y=6
y=6-4
y=2
Which linear inequality represents the graph below?
A. x 2² x + 1
B. y2-}x+1
C. >*x+1
D. -*x+1
Given:
The graph of an inequality.
To find:
The inequality.
Solution:
In the given graph, the boundary line passes through the points (-3,3) and (0,1).
So, the equation of the boundary line is:
[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
[tex]y-3=\dfrac{1-3}{0-(-3)}(x-(-3))[/tex]
[tex]y-3=\dfrac{-2}{3}(x+3)[/tex]
[tex]y-3=-\dfrac{2}{3}(x)-\dfrac{2}{3}(3)[/tex]
Adding 3 on both sides, we get
[tex]y=-\dfrac{2}{3}(x)-2+3[/tex]
[tex]y=-\dfrac{2}{3}(x)+1[/tex]
The boundary line is a solid line and the shaded region is above the boundary line. So, the sign of inequality must be [tex]\geq[/tex] and the required inequality is:
[tex]y\geq -\dfrac{2}{3}(x)+1[/tex]
Therefore, the correct option is B.
is How many oranges did
Sally eat last month? a statistical question
Answer:
25
Step-by-step explanation:
Lets say it's a 30 day month. Sally really likes oranges so she eats them a lot.