3 years ago

Alyssa has $75 less than three times Eric. Together they have $905. How much money do they each have?

Mathematics

1 answer:

tensa zangetsu [6.8K]3 years ago

7 0

Answer:

Alyssa=225

Eric=680

Step-by-step explanation:

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8x+4y=-20 and -4x-8y=-20 solve each system by substitution

True [87]

8x + 4y = -20
4y = -20 - 8x
y = -5 -2x

-4x - 8y = -20
-4x - 8(-5-2x) = -20
-4x + 40 + 16x = -20
12x = -60
x = -5

8(-5) + 4y = -20
-40 + 4y = -20
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4 years ago

Scarlett has set up a lemonade stand outside her house and sells small cups

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Answer: Scarlett sold 40 small cups and 30 large cups

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4 years ago

It is in the picture Thanks :D

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Answer and Step-by-step explanation:

P is less than -1 (P < -1) is the answer.

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Less than -1 is an option, so that is the answer.

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3 years ago

Radhika borrowed Rs.12000 from her friends. Out of which Rs.4000 were borrowed at 18% and the remaining at 15% rate of interest

goldfiish [28.3K]

<u>Answer-</u>

The total interest after 3 years is Rs.5760 .

<u>Solution-</u>

Total money borrowed = Rs.12000

Out of those Rs.4000 is of 18% interest rate and remaining 12000-4000=8000 is of 15% interest rate.

$\text{Total interest}=\frac{P_1\times r_1\times t}{100}+\frac{P_2\times r_2\times t}{100}$

Where,

P₁ = principal amount = Rs.4000

P₂ = principal amount = Rs.8000

r₁ = rate of interest of P₁ = 18%

r₂ = rate of interest of P₂ = 15%

t = time period = 3 years

$\text{Total interest}=\frac{4000\times 18\times 3}{100}+\frac{8000\times 15\times 3}{100}=2160+3600=5760$

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3 years ago

A three-digit personal identification number is chosen using the digits 1-9. The digits cannot be repeated.

Digiron [165]

Answer

1/9

Step-by-step explanation:

Hope this helps

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7 0

3 years ago

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