Answer:
Add 25 to each side using the addition property of equality
Step-by-step explanation:
10x − 25 − 3x = 4x − 1
Step 1: 7x − 25 = 4x − 1 Combine like terms
Step 2: 7x = 4x + 24 Add 25 to each side using the addition property of equality
Let R and B be the number of red and blue marbles respectively.
Then,
R+B = 36
R:B = 5:4
Therefore,
Ratio of red marbles = 5/9
Ratio of blue marbles = 4/9
This means,
R = 5/9*36 = 20 marbles
B = 4/9*36 = 16 marbles
If one blue marble is removed from the bag, the new B= 16-1 = 15 blue marbles and the new total of marbles in the bag = 36-1 = 35 marbles.
The new ratios are
R = 20/35 =4/7
B = 15/35 = 3/7
That is, R:B = 4:3
The reasoning of the student is wrong. When a marble is removed, both the number of blue marbles changes as well as the total of the marbles in the bag. In other words, both the values in the ratio reduce by 1.
Answer:
11^-12 or 11 to the power or negative twelve
Step-by-step explanation:
11^-4 / 11 ^ 8
according to the laws of indices, when dealing with powers, division is subtraction. so:
-4 - 8 = -12
answer = 11^ -12
Answer:
it depends how many of each you want, you would take $800 for the price of the item or $400. then x for the amount of items you need. then put that all over your total and divide.
so it would look like this
Step-by-step explanation:
800(x)
-------------
20,000
Answer:
Arithmetic
Step-by-step explanation:
Arithmetic is additive and geometric is multiplicative, and the numbers aren''t multiplying, they're adding.