Answer:
y = 5
Step-by-step explanation:
22.5(10-y)+27.5y=250
Combind like terms,
Subtract 225 from both equations to isolate the variable.
Divide both sides by 5 to isolate the variable and solve it.
Answer:
A rational number is a number that stops and doesnt go on forever and ever. Therefore the sequence of numbers would be no, yes, no, yes, yes
Step-by-step explanation:
Any number that is a decimal that eventually stops is also rational but decimals that never end are irrational.
The answer is A. Because if you subtract 3 from 23 it will be 20 and 20 divided by 2 is 10
The correct question is
<span>What is the equation in standard form of an ellipse centered at the origin and vertex (4,0) and focus (1,0)
</span>
we know that
<span>Standard form of equation for an ellipse with horizontal major axis is
(x-h)</span>²/a²+(y-k)²/b²=1
the center is the origin
so
(h,k) is (0,0)<span>length of horizontal major axis------> 8=2a-----> a=4
a</span>²=16
c=1 (distance from center to focal point)
c²=1
b²=a²-c²-----> b²=16-1----> b²=15
the equation is
(x)²/16+(y)²/15=1
the answer is
(x)²/16+(y)²/15=1
Answer:
A 3/30=x/12
Step-by-step explanation:
According to the recipe,
For 2 batches, 3 cups of flour required.
One batch has 15 mix rolls
Then 2 batches will have 2 (15) = 30 rolls
Each person gets one roll, so 3 cups of flour is required for 30 people.
The quanity of flour is proportional to the number of people.
Let x be the quantity of flour required for 12 people.
