6/10 is equal to 0.60
9/12 is equal to 0.75
your answer is not above for D but if D is < then that would be the correct answer :)
Answer x = 12 and y = 9
Step by step
First identify the equations
The sum of two numbers is 21
x + y = 21
Change to y intercept for ease of math
y = 21 - x ( call this equation a)
Three times the larger is equal to four times the smaller
3x = 4y (call this equation b)
Now substitute the value of y = 21 -x into equation b
3x = 4(21-x)
Distribute
3x = 84 - 4x
Now we want to isolate x by adding 4x to each side
3x + 4x = 84 -4x + 4x
Combine like terms
7x = 84
Now solve for x by dividing both sides by 7
x = 12
Now to find y
Using equation a from above
y = 21 - x
Substitute our x value of 12 into equation
y = 21 - 12
solve for y
y = 9
Now check your work
x = 12 and y = 9
The sum of two numbers is 21
12 + 9 = 21
Three times the larger (x) is equal to four times the smaller (y)
3x12 = 4x9
36 = 36
Problem solved!!
Answer:
(a) 51,100 kilometers.
(b)
meters
Step-by-step explanation:
(a) When converting from scientific notation to standard notation, split the equation.
When solving
, begin by calculating
.
= 10,000
Multiply this by '5.11', resulting in:
5.11 × 10000 = 51,100 kilometers.
(b) When converting from standard form to scientific notation, count the number of zeros until the first non-zero digit. Therefore:
In 0.00000768, the '7' is placed 6 digits from the decimal. Recall that for decimals, the exponent is negative. Therefore in scientific notation, this equals: 
A) Correct
20-3=17
B) Incorrect
6(16) =96
C) Incorrect
11 does not equal 12
Answer:
3. When to angles in a plane share a vertex and a side but no common interior points, they are called Adjacent angles.
4. When two lines intersect, they form two pairs of "opposite" angles called congruent angles.