The number that 18 is 45% of 40.
To find the number that 18 is 45% of, we can set up the following equation:
we can set up the following equation:
Given number is 18 and the percentage is 45%
18 = 0.45 * x
x=18/0.45
To solve for x, divide both sides of the equation by 0.45:
To solve for x, divide both sides of the equation by 0.45:
x = 18 / 0.45
x=40
By future Performing the calculation:
x = 40
We get the answer as 40.
Therefore, 18 is 45% of 40.
To learn more about the sum of a number,
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a. Is the ratio of quarters to dimes still 5:3?
b. If so, illustrate with an example. If not, give a counter-example.
3. You are 13 years old, and your cousin is 19 years old. As you grow older, is your age proportional to your cousin's age? Explain your reasoning
Answer:
1. The relation is proportional.
2. The ratio of quarters and to dimes will not remain 5 : 3.
3. y = 6 + x, Hence, not proportional.
Step-by-step explanation:
1. I can do 90 sit-ups in 2 minutes and my friend can do 135 sit-ups in 3 minutes.
If we consider t as the time in minutes and n as the number of sit-ups, then we can write (2,90) and (3,135) as two ordered pairs.
So, the relation between t and n will be
โ n = 45t
Therefore, the relation is proportional.
2. The initial ratio of quarters to dimes was 5:3. If I add the same number of quarters and dimes to it then,
a) The ratio of quarters and dimes will not still be 5 : 3.
b) Let, the number of quarters was 5 then the number of dimes was 3. {As the ratio was 5 : 3}
Now, we add 3 new quarters and 3 new dimes in the collection. then, finally, the number of quarters will be (5 + 3) = 8 and the number of dimes will become (3 + 3) = 6.
Therefore, the new ratio will become 8 : 6 = 4 : 3 which is not equal to 5 : 3.
3. I am 13 years old, and my cousin is 19 years old.
So, if my age is given by x and that of my cousin is y, then
y - x = 19 - 13
โ y - x = 6
โ y = 6 + x
This relation will continue as the year passes. So, the relation is not proportional as the relation is not like y = kx. (Answer)
4) fall on a line with a slope of
-
7. What is the value of t?
t=
Answer:
t = -3
Step-by-step explanation:
To answer this problem, first you have to know how to calculate the slope of a line. Since we know that y1-y2/x1-x2 is the equation to calculate slope, we are ready to tackle this problem.
Because y1 is t, y2 is 4, x1 is 4, and x2 is 5, we can now plug this in to our equation. The equation becomes t-4/4-5. And because we know the slope is 7, the equation is now (t-4)/(4-5)=7. If you solve this equation, you will get that t=-3
14 dollars an hour is the correct answer dude
Answer:
$29.
Check picture down below for more.
Answer: 31.75
Step-by-step explanation:
$900 (principle) x .09 (simple int rate) x 3 (years)= $243 (interest)
$243 (interest) + $900 (principle) = $1143
$1143 รท 3 = $31.75 per month