Answer:
66
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
The number of silver cars that need to be added will be 100.
A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.
Minxia counted 40 green vehicles and 20 silver vehicles in the parking garage. On the off chance that the quantity of green vehicles remains something similar.
Let 'x' be the number of silver cars that need to be added.
If the ratio of green cars to silver cars is 1: 3. Then the number of silver cars that need to be added will be given as,
40 / (x + 20) = 1 / 3
Simplify the equation, then we have
40 / (x + 20) = 1 / 3
(x + 20) = 40 x 3
x + 20 = 120
x = 100
The number of silver cars that need to be added will be 100.
More about the ratio and the proportion link is given below.
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B is equivalent to 270.
The calculation of per cent i.e., per 100 is known as percentage.
Here, 300% of 0.18 is equivalent to 20% of b
or, 300%*0.18=20%*b
or,54=b/5
or, b=270
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Answer:
2.7
Step-by-step explanation:
3*0.18=0.54
0.54/0.2=2.7
2x - 4y = 9
x+3 = -4y
A. solve the second equation for X
B. rearrange the second equation to read x+4y = -3
C. rearrange the second equation to read x + 4y =
D. add the equations together
Answer:
The answer is: to rearrange the second equation by adding "4y" to both sides and subtract 3 from both sides so it reads: x + 4y = -3
Please notice that two options that you presented read kind of similar (so there may be a typo). Make sure that you select the options you were given that aligns to the answer shown above.
Step-by-step explanation:
In order to solve a system of equations via the elimination method, the first step is to write both equations in standard form. That is, with the terms containing variables on the left, (and alphabetically ordered by they variables), and the pure numerical term on the right hand side of the equal sign.
In our case, since the first equation is already written in standard form, to rearrange the second equation by adding "4y" to both sides and subtract 3 from both sides so it reads: x + 4y = -3
Answer:
B
Step-by-step explanation: