jessicatvoficial
jessicatvoficial jessicatvoficial
  • 22-03-2021
  • Mathematics
contestada

please help me and solve these, i will give brainliest and worth 25 points!!

please help me and solve these i will give brainliest and worth 25 points class=

Respuesta :

Megabruh9000
Megabruh9000 Megabruh9000
  • 22-03-2021

Answer:

1. 168 cm^{2}

2. 156 in^{2}

3. 30 cm^{2}

4. 360 ft^{2}

Step-by-step explanation:

All ratio questions. We can set up proportions then cross multiply

1. \frac{8}{12} \frac{112}{x}

8x = (112 x 12)

8x = 1344

x = 168m

2.\frac{4}{8} \frac{78}{x}

4x = (78 x 8)

4x = 624

x = 156in

3. \frac{5}{2} \frac{75}{x}

5x = (75 x 2)

x = 30cm

4. \frac{8}{10} \frac{288}{x}

8x = ( 288 x 10 )

8x = 2880

x =360ft

Answer Link
scentofcupcake scentofcupcake
  • 22-03-2021
answer:
4. 168 cm
5. 156 in
6. 30 cm
7. 360 ft
Answer Link

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