If 20% of x is 28, what is 70% of x?
2 answers:
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Answer:
see graph
Step-by-step explanation:
to find points on the graph, enter in x values and find y.
3|-4|+9 = 21 (-4, 21)
3|2|+9 = 15 (2, 15
(A)
we are given
(-1.15) x 3.2
Since, sign of 1.15 is negative
and sign of 3.2 is positive
so, we put negative sign in front
now, we can multiply them
and we get
.............Answer
(B)
Suppose, we are given product of two numbers 'a' and 'b'
so, we use this property
case-1: When both positive , then we put positive in front
case-2: When both negative , then we put positive in front
case-3: When first is negative and second is positive , then we put negative in front
case-4: When first is positive and second is negative , then we put negative in front
Answer: OPTION B.
Step-by-step explanation:
By definition, the slope equals the Rise divided by the Run; then, the slope can be found using the following formula:
Where "Rise" is the vertical change between two points and "Run" is the horizontal change between those two points.
In this case you can identify in the figure that:
Knowing these values, you can substitute them into the formula.
Through this procedure you get that the slope of the ramp is:
Let 
the number of white marbles in Jar 1
Let
the number of white marbles in Jar 2
Total number of white marbles is
Jar 1 has
white marbles and 
red marbles so 
marbles total
Jar 2 has
white marbles and 
red marbles so 
marbles total
Since both jars have equal amounts of marbles,
We have a system of equations:
The number of red marbles in Jar 2 is so we solve for
⇒
⇒
⇒
⇒
Number of red marbles in Jar 2 is
So there are 360 red marbles in Jar 2.
Let
Total number of white marbles is
Jar 1 has
Jar 2 has
Since both jars have equal amounts of marbles,
We have a system of equations:
The number of red marbles in Jar 2 is
⇒
⇒
⇒
⇒
Number of red marbles in Jar 2 is
So there are 360 red marbles in Jar 2.