In a sale, there is 50% off all prices. A chair costs £17.50 in the sale. How much was it before the sale?
Answers
Now the same in math:
£17.50 = .50 x n pr £17.50 = .5n
Divide both sides by .5
n= £ 35
Related Questions
In a group there are 2 girls and 4 boys. What fraction of the group is girls?2/52163/64/6
Which of the following mixed numbers is equivalent to 12.16?
During a typing test, Bob typed 40 words in 2/3 of a minute. What is Bob's typing speed?
1 fourth B minus 10 equals 7
Y=-2/3x+1
Y=3/2x+7
Y=-3/2x+7
Answers
The line that is perpendicular to the given line, is:
y = (-3/2)*x + 7
How to get the perpendicular line?
Remember that two lines are perpendicular if the slope of one is equal to the opposite of the inverse of the other slope.
Here we start with the line:
y = (2/3)*x + 3
So the slope is 2/3.
The opposite of the inverse of that would be -(3/2). Then any line with a slope of -3/2 will be perpendicular to the given line. So we conclude that the correct option is:
Y = -(3/2)x+7
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did Ria make?
Answers
subtract 4 from both sides
1+3r=4r
subtract 3r from both sides
1=r
Final answer:
To solve the equation 5 + 3r = 4 + 4r, we need to isolate the 'r' term on one side of the equation. Ria made a mistake by stating that the equation has infinitely many solutions, but the correct solution is r = 1.
Explanation:
The equation given is 5 + 3r = 4 + 4r. To solve this equation, we need to first simplify both sides by combining like terms. On the left side, 5 does not have a 'r' term, so we can leave it as it is. On the right side, 4 has a 'r' term, so we can write it as 4r. Now we have 5 + 3r = 4r + 4. To solve for 'r', we need to isolate the 'r' term on one side of the equation. We can do this by subtracting 3r from both sides of the equation. This gives us 5 = 4r + 4 - 3r. Simplifying further, we get 5 = r + 4. Now, to isolate 'r', we can subtract 4 from both sides of the equation. This gives us 1 = r. Therefore, the solution to the equation is r = 1.
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20/9 ; the probability that the Seahawks will defeat the Raiders.
11/20 ; the probability that the Seahawks will defeat the Raiders.
0.45 ; the probability that the Seahawks will not defeat the Raiders.
Answers
Answer:
D: 0.45 ; the probability that the Seahawks will not defeat the Raiders.
Step-by-step explanation:
The complement of an event A is the set of all outcomes in the sample space that are not included in the outcomes of event A.
The Complement Rule states that the sum of the probabilities of an event and its complement must equal 1, or for the event , and its complement event
always
If then
Event - the Seahawks will defeat the Raiders
Event - the Seahawks will not defeat the Raiders
Hence, correct choice is D: 0.45 ; the probability that the Seahawks will not defeat the Raiders.
Answers
( 5 / 8 ) * ( 2 / 3 ) = 10 / 24 = 5 / 12 A ;
10.
( 11 / 12 ) ÷ ( 5 / 7 ) = ( 11 / 12 ) * ( 7 / 5 ) = 77 / 60 = 1 17 / 60 D ;
11.
3 / 8 B;
12.
2 5 / 8 = 21 / 8 ; the reciprocical of 21 / 8 is 8 / 21 C ;
13.
$12.50 * 34.5 =$ 431.25 C ;
Answers
The value of x will be;
⇒ x = 7/2
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
BD is an angle bisector.
Now,
In ΔBFG and ΔBFE;
∠G = ∠E = 90°
BF is common line.
∠GBF = ∠ FBE
Thus, ΔBFG ≅ ΔBFE
Hence, FG = FE
Substitute the values, we get;
⇒ FG = FE
⇒ 2x + 6 = 4x - 1
⇒ 6 + 1 = 4x - 2x
⇒ 7 = 2x
⇒ x = 7/2
Thus, The value of x will be;
⇒ x = 7/2
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add 1 to both sides
2x+7=4x
subtract 2x from both sides
7=2x
divide both sides by 2
3.5=x
To find EF, plug in the x value
4x-1
4(3.5)-1
14-1
EF=13
Answers
normally the ammmount you earn is calculated by (how many you sold) times (how much 1 costs)
so lets say each ticket costs c
he sold x tickets
f(x)=cx where c=cost per ticket and x=number of tickets sold