Jada has d dimes she has more that 30 cents but less than a dollar can d be 10

Mathematics

1 answer:

gavmur [86]2 years ago

3 0

Answer:

Step-by-step explanation:

30 cents < 10 cents/dime × d dimes < 1 dollar × 100 cents/dollar

if d = 10

30 cents < 10 cents/dime × 10 dime < 1 dollar × 100 cents/dollar

30 cents < 10 cents/dime × 10 dime < 1 dollar × 100 cents/dollar

notice how the units bolded all cancel out, just leaving cents

30 cents < 100 cents is NOT < 100 cents

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Perimeter Formula:
$2l + 2b = 64$

Area Formula:
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Set perimeter Formula equal to b:
$2l + 2b = 64 \\ 2(l + b) = 64 \\ l+ b = 32 \\ b = 32 - l$
Plug formula for be we just made above into the area Formula:
$(32 - l) \times l = 207$

Solve for L (you'll have to use quadratic formula) then plug that back into the area Equation and solve for b.

Here's a link to where the problem has been explained before (they go into more detail than me).

https://brainly.ph/question/468631

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