Answer: $0.58
<u>Step-by-step explanation:</u>
Let x represent pencil and y represent eraser
10x + 7y = 4.23 → 1(10x + 7y = 4.23) → 10x + 7y = 4.23
3x + y = 0.95 → -3(3x + y = 0.95) → <u>-21x - 7y</u> =<u> -6.65 </u>
-11x = -2.42
<u>÷-11 </u> <u>÷-11 </u>
x = 0.22
3x + y = 0.95
3(0.22) + y = 0.95
0.66 + y = 0.95
y = 0.29
2y = 2(0.29) = 0.58
Answer:
pretty sure is the first one
Step-by-step explanation:
a proportional relationship is a straight line that passes through the origin
A. Imagine the circle has a radius of 3 and height of 9. 3 x 9 = 27/3 is 9. If radius is doubled that’s 6 and height is tripled would make it 27. So 6 x 27 is 162 divided by 3 is 54 and 9 x 6 is 54
Answer:
The ratio is 1:3
Step-by-step explanation:
Let
x -----> the number of tables in the restaurant
y ----> the number of chairs in the restaurant
we know that
To find out the ratio of tables to chairs in the restaurant, divide the number of tables by the number of chairs
we have
![x=18\ tables\\ y=54\ chairs](https://tex.z-dn.net/?f=x%3D18%5C%20tables%5C%5C%20y%3D54%5C%20chairs)
so
The ratio is equal to
![\frac{18}{54}](https://tex.z-dn.net/?f=%5Cfrac%7B18%7D%7B54%7D)
Simplify
Divide by 18 both numerator and denominator
![\frac{1}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D)
therefore
The ratio is 1:3
<u>Answer:</u>
- In 8 hours, Michael can drive 48 miles.
<u>Step-by-step explanation:</u>
<u>Let's write our equation.</u>
- 30 miles = 5 hours
- => 30/5 miles = 1 hour
- => 6 miles = 1 hour
- => 6 x 8 miles = 1 x 8 hours
- => 48 miles = 8 hours
Hence, <u>in 8 hours, Michael can drive 48 miles.</u>
Hoped this helped.
![BrainiacUser1357](https://tex.z-dn.net/?f=BrainiacUser1357)