Answer:
800
Step-by-step explanation:
d=2r=2·400=800
12 is first one 7 is 2nd one 9 is the last one
Answer:
For an inground pool, a patio area ranges between $3 and $40 per square foot. That wide range depends largely on the materials you use to build the space.
Para una piscina enterrada, el área de un patio varía entre $ 3 y $ 40 por pie cuadrado. Esa amplia gama depende en gran medida de los materiales que utilice para construir el espacio.
Step-by-step explanation:
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1 hr plus 20 minutes
Then that answer divided by 15
Then that answer multiply by 3/4
Step-by-step explanation:
step 1. 12x - 15 - 12x = 7x + 20
step 2. 12x - 12x - 15 = 7x + 20 (grouping of terms)
step 3. -15 = 7x + 20 (adding like terms)
step 4. -35 = 7x (subtract 20 from both sides)
step 5. this step is incorrect.
step 6. -5 = x ( divide both sides by 7)
step 7. x = -5 (put the variable first).
