1st picture
The average speed for his journey from York to Blackpool is 61.4 KM/H
Answer:
The answer to your question is:
7.2 ounces of butter
6 ounces of sugar
4.8 ounces of flour
3 eggs
Step-by-step explanation:
Data
Recipe for 15 cupcakes
12 ounces butter
10 ounces sugar
8 ounces flour
5 eggs
Process
Rule of three
12 ounces of butter ------------------- 15 cupcakes
x -------------------- 9 cupcakes
x = (9 x 12) / 15
x = 7.2 ounces of butter
10 ounces of sugar ------------------- 15 cupcakes
x ------------------- 9 cupcakes
x = (9 x 10) / 15
x = 90 / 15
x = 6 ounces of sugar
8 ounces of flour ------------------- 15 cupcakes
x ------------------- 9 cupcakes
x = (9 x 8) / 15
x = 4.8 ounces of flour
5 eggs ------------------- 15 cupcakes
x ------------------- 9 cupcakes
x = (9 x 5)/ 15
x = 45/15
x = 3 eggs
<span>4x + 2y = 4
6x - 8 = -2y
Both equations are divisible by 2, so divide both sides of both equations by 2.
</span><span>2x + y = 2
3x - 4 = -y
Since the second equation has -y on one side, we can multiply both sides by -1 to solve for y.
y = -3x + 4
Now we substitute y of the first equation with -3x + 4.
This is the substitution method.
2x + y = 2
2x - 3x + 4 = 2
-x + 4 = 2
-x = -2
x = 2
Now we substitute 2 for x in the first original equation and solve for y.
4x + 2y = 4
4(2) + 2y = 4
8 + 2y = 4
2y = -4
y = -2
The solution is x = 2 and y = -2
</span>
Answer:
x = 2
Step-by-step explanation:
5(2x- 6) + 20 = 10
10x - 30 = -10
10x = 20
x = 2
Answer: The answer is A
Step-by-step explanation: because 5x-30= -150 because I looked it up
