Y = 4n – 3d
n = 2
d = 5
(b) Work out the value of y
Answers
After simplification the value of y is - 7.
Given information:
n = 2
d = 5
Given equation:
y = 4n – 3d.........(1)
Plugging the values of n and d in equation (1)
y = 4 (2) - 3 (5)
y = 4 * 2 - 3 * 5
Simplify this equation.
4 × 2 = 8 and 3 × 5 = 15
y = 8 - 15
y = -7
Therefore, y is equal to -7.
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y = 4(2) - 3(5)
y = 8 - 15
y = -7
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Answers
Answers
Answer:
108
Step-by-step explanation:
Mike's current age, be M
Then Brandon's is: M - 27
Also, M = 4(M - 27)
M = 4M - 108
M - 4M = - 108
- 3M = - 108
Answers
Answer:
Each of them had $49 at first.
Step-by-step explanation:
Given:
Cedric and Doug each had an equal amount of money.
Let the number of money they had at first be x
Cedric spent = $35
Doug spent = $28
Cedric Money left =
Doug Money left =
the ratio of Cedric money to Doug money was 2:3
Hence the expression can be made as;
Now by cross multiplication method we get;
Now we will use distributive property to elaborate the same;
Combining common terms we get;
Using Subtraction property we get;
Hence $49 they each had at first.
Answers
Answer:
$2.70
Step-by-step explanation:
Cost price = $6
Mark up percentage = 45%
Mark up amount = 45% × $6
= 0.45 × $6
= $2.70
Selling price = Mark up + cost price
= $2.70 + $6
= $8.70
Jermaine sells the shirts for $8.70 and makes a profit of $2.70.
Answer:
$2.70
Step-by-step explanation:
6*45% =2.70
B. (0, –6)
C. (6, –1)
D. (–6, –6)
Answers
Answer:
D) ( -6 , -6 ) .
Step-by-step explanation:
Given : 2x – 6y = 24 and –5x + 6y = –6 .
To find : Solve the following system by any method.
Solution : We have given that
2x – 6y = 24 -------(1)
–5x + 6y = –6 ------(2)
______________ ( Adding both equations)
-3x + 0 = 18.
________________
-3x = 18
On dividing by - 3 both sides
x = -6 .
Plugging the value x = -6 in equation 1.
2x - 6y = 24 .
2 ( -6) - 6y = 24.
-12 -6y = 24 .
On adding both sides by 12.
- 6y = 24 +12
-6y = 36
On dividing by -6 both sides.
y = -6 .
Solution ( -6 , -6 ) .
Therefore, D) ( -6 , -6 ) .
-5x + 6y = -6
----------------add
-3x = 18
x = 18/-3
x = -6
2x - 6y = 24
2(-6) - 6y = 24
-12 - 6y = 24
-6y = 24 + 12
-6y = 36
y = 36/-6
y = -6
solution is : (-6,-6)
Answers
Answer:
60 yds
Step-by-step explanation:
10 + 15 + 4 + (10 - 4) + 20 + (20 - 15) = 60
Answer: 60 Yards
In this model, we have all sides except for two. In order to find the perimeter of this, you would need all sides.
To find the missing sides you can see that the lenght of the side on the left is 10 yards. And the entire right side is equal to that left side. So, to find the missing side x you would need to solve: x+10-4. So, x is 6.
Do the same for the top and bottom to get the other missing side that is perpendicular to the side that is 4 yards is 5 yards.
Now that you have the lengths of all of the sides, you can solve for the perimeter. You would do,
Please mark brainliest if correct :)