Question

PLSSSSSSSSSSSSSSSSs Help me i have to send this to my math teacher before yk back to school starts

Answer 1

Q/ True or False

4. Ans ; False —> because

`(2 * 3.5)/(3 * 3.5) = (7)/(10.5)`

Or; 2/3= 0.6 , 7/16= 0.43 so no equal

5. True —> because

`(5 * 9.6)/(15 * 9.6) = (48)/(144)`

Or; 5/15=0.33 , 48/144 = 0.33 so equal

6. True —> because

`(12 * 1.5)/(28 * 1.5) = (18)/(42)`

Or; 12/28=0.4285 , 18/42=0.4285 so equal

Q/ value " x "

7. Ans;

`(3)/(6) = (x)/(8) \\ 6x = 8 * 3 \\ 6x = 24 \\ x = (24)/(6) \\ x = 4`

8. Ans;

`(52)/(x) = (4)/(1) \\ 4x = 52 \\ x = (52)/(4) \\ x = 13`

9. Ans;

`(15)/(12) = (10)/(x) \\ 15x = 10 * 12 \\ 15x = 120 \\ x = (120)/(15) \\ x = 8`

10. Ans;

`(18)/(x) = (2.4)/(28) \\ 2.4x = 28 * 18 \\ 2.4x = 504 \\ x = (504)/(2.4) \\ x = 210`

11.Ans;

`(3)/(4) = (x)/(3.8) \\ 4x = 3.8 * 3 \\ 4x = 11.4 \\ x = (11.4)/(4) \\ x = 2.85`

12. Ans;

`(x)/(12) = (2 (1)/(3) )/(5) \\ (x)/(12) = ( (7)/(3) )/(5) \\ \\ (x)/(12) = (7)/(3) / 5 \\ \\ (x)/(12) = (7)/(3) * (1)/(5) \\ \\ (x)/(12) = (7)/(15) \\ \\ 15x = 12 * 7 \\ 15x = 84 \\ \\ x = (84)/(15) \\ \\ x = 5.6`

Q/ Write each ratio

1.Ans;

`(30 \: ft)/(60 \: ft) = (30 \: ft \: \: / 30)/(60 \: ft \: \: / 30) = (1 \: ft)/(2 \: ft)`

2. Ans;

`(45 \: mph)/(25 \: mph) = (45 \: mph \: / )/(25 \: mph / 5) = (4 \: mph)/(5 \: mph)`

3. Ans;

`(6 \: min)/(16 \: min) = (6 \: min \: /2 )/(16 \: min \: / 2) = (3 \: min)/(8 \: min)`

4. Ans;

`(300)/(450) = (300 / 150)/(450 / 150) = (2)/(3)`

5. Ans;

`(48 \: gal)/(14 \: min) = (48 \: gal / 2)/(14 \: min / 2) = (24 \: gal)/(7 \: min)`

6. Ans;

`(21 \: fem)/(61 \:mal ) = (21 \: fem / 3)/(51 \:mal / 3) = (7 \: fem)/(17 \: mal)`

7. Ans;

`(4.2)/(36) = (4.2 / 12)/(36 / 12 \: pot) = (0.35)/(3 \: pot)`

8. Ans;

`(72 \: correct)/(96 \: questions) = (72 \: correct / 24)/(96 \: questions / 24) = (3 \: correct)/(4 \: questions)`

Q/Find the unit rate

9.Ans;

`(1500 \: m)/(6 \: s) = (250 \: m)/(1 \: s)`

10. Ans;

`(192 \: mil)/(6 \: gal) = (32 \: min)/(1gal)`

11. Ans;

`(20 \: people)/(5 \: cars) = (4 \: people)/(1 \: cars)`

12.Ans;

`(36)/(4 \: lbs) = (9)/(1 \: lbs)`

I hope I helped you^_^