There are 61 blue marbles
<em><u>Solution:</u></em>
Let "b" be the number of blue marbles
Let "r" be the number of red marbles
Given that bag contains blue marbles and red marbles, 75 in total
number of blue marbles + number of red marbles = 75
b + r = 75 -------- eqn 1
The number of blue marbles is 5 more than 4 times the number of red marbles
number of blue marbles = 5 + 4(number of red marbles)
b = 5 + 4r ------- eqn 2
Let us solve eqn 1 and eqn 2
Substitute eqn 2 in eqn 1
5 + 4r + r = 75
5 + 5r = 75
5r = 75 - 5
5r = 70
r = 14
From eqn 2,
b = 5 + 4(14) = 5 + 56 = 61
b = 61
Thus there are 61 blue marbles
The answer is standard form is 5400.
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Answer:78.1 is the answer and B or D will be your answer hope this helped
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
+ 18 = 67
<u><em>You first need to subtract 18 from both sides:</em></u>
<u><em /></u> + 18 = 67
- 18 -18
_________
= 49
<u><em>To get rid of the square, you need to square root both sides:</em></u>
<u><em /></u> = 49
<u><em>This leaves you with:</em></u>
x = 7
