Monica’s school band held a car wash to raise money for a trip to a parade in New York City. After washing 125 cars, they made $775 from a combination of $5.00 quick washes and $8.00 premium washes. Let x represent the number of quick washes and let y represent the number of premium washes. Which system of linear equations represents the situation? 5x + 8y = 775 and x + y =125 5x – 8y = 125 and x + y = 775 5x + 8y = 775 and x – y = 125 5x – 8y = 125 and x – y = 775
Answers
Answer:
A. 5x + 8y = 775 and x + y =125
Step-by-step explanation:
Answer: A) 5x + 8y = 775 and x + y =125
Step-by-step explanation:
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Answers
20% = 2/10
2/10*x = 8 |(*10/2)
2/10*10/2*x= 8 * 10/2 2/10*10/2 =>1
1*x = 80/2
x=40
25% from 40 is 10
25% = 1/4
1/4 * 40 = 40/4 = 10
Answer:
Set up an equation as 0.2x = 8, which means 20 percent of x equals 8. Solve the equation by dividing each side by 0.2. Dividing 0.2 from each side results in x = 40. Eight is 20 percent of 40.
Step-by-step explanation:
Answers
which is...
y2 - y1
m = -----------
x2 - x1
and since they already gave you two x and y coordinates this is really simple:) first of all you need to understand what is y2, y1, or x2, x1
taking the points (6,-3) i hope u understand that 6 is the x and -3 is the y. so knowing that information you always remember to use the information in the order that they gave it to you. i will add an extra link to help explain. Sooo then knowing that you plug it into the formula that I gave you earlier
so look at the next link that i made:)
so your slope is 6/5! or 1.2 as a decimal
hopefully you would know what an equation looks like but just in case this is it y = mx+b
so your equation looks like this y = 1.2x -3
where did i get the -3?
well look at first x and y coordinate thats your first y intercept:))
hope i helped!!.... and that this was right lol
let me know if it was correct thanks.
Answers
1.5 cm is the length of the model.
What is multiplication?
In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
Here, we have,
a model car has a scale of 3 cm : 2 m.
The length of the actual hood of the car is 1 m.
Now,
Set up a proportion:
3cm/2m = x/1m
Cross-multiply:
2x=3
Divide by 2:
x=1.5 cm
Hence, 1.5 cm is the length of the model.
To learn more on multiplication click:
#SPJ3
3cm/2m = x/1m
Cross-multiply:
2x=3
Divide by 2:
x=1.5 cm
Answers
{(-1,
a0), (0,
a1), (1,
a2), (2,
a3), (3,
a4), (4,
a5)}
thanks in advance :)
Answers