Algebra Algebra?
1.Write a proportion for the following problem. Use x as the variable. When you type it in, leave no spaces, like this example: 3/4=x/5.
Marge drove 348 miles in 4.5 hours. At that rate, how many miles could she drive in 10 hours?
2. Answer problem 1.
3. 3/4=21/2+d
4. 16/17=x/40
5. Which ratio is equal to 5/6?
15/16
25/36
30/36
60/70
Comments
Hi,
1.Write a proportion for the following problem. Use x as the variable. When you type it in, leave no spaces, like this example: 3/4=x/5.
Marge drove 348 miles in 4.5 hours. At that rate, how many miles could she drive in 10 hours?
348/4.5=x/10
2. Answer problem 1.
4.5x = 3480
x = 773⅓
3. 3/4=21/2+d
Multiply each term by 4 to eliminate fractions. Then solve.
3 = 42 + 4d
-39 = 4d
-39/4 = d
4. 16/17=x/40
17x = 16(40)
17x = 640
x = 640/17
5. Which ratio is equal to 5/6?
15/16
25/36
30/36 = 5/6
60/70
I hope those help!! :-)
1)
2)348/4.5=x/10 x=773.333
3)-39/4=d/1
4)30/36 => factor out 6
1) 10(348/4.5)
= 773.3 miles
3) d = 4(21/3)-2
d = 28-2
d = 26
4) x = 16(40/17)
x=37.6
5) 30/36
348/4.5=x/10
x = 348*10/4.5 = 773.3
3/4=21/2+d
2+d=28
d=26
16/17=x/40
x=37.6
30/36