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astra-53 [7]
3 years ago
5

On the first day of the year, you have $700 in your bank account. You spend $35 per week. Your friend starts the year with $450

in his bank account. He saves $15 per week. Solve the equation 700 – 35w = 450 + 15w to find out how many weeks, w, it will take for you and your friend have the same amount of money in your accounts
Mathematics
1 answer:
Alex_Xolod [135]3 years ago
7 0

Answer is 5 weeks....

xoxo -Ella

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At a restaurant the cost for a breakfast taco and a small glass of milk is $2.10. The cost for 2 tacos and 3 small glasses of mi
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Answer:

The price for a small glass of milk is $0.95, and the price for a breakfast taco is $1.15.

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Let the price of a taco be x and the price for a small glass of milk be y.

x + y = 2.1

2x + 3y = 5.15

Multiply the first equation by 2:

2x + 2y = 4.2

Subtract the new third equation from the second equation:

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y = 0.95

Hence, the price for a small glass of milk is $0.95.

Substitute y into the first equation.

x + 0.95 = 2.1

x = 1.15

Therefore, the price for a breakfast taco is $1.15.

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Answer:

\sf 500,000,000,000=5 \times 10^{11}

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Step-by-step explanation:

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To convert a number into scientific notation, <u>move</u> the decimal point to the <u>left or right</u> until there is <u>one digit</u> to the left of the decimal point.

The number of times you have moved the decimal point is n.

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To convert 500,000,000,000 into scientific notation, move the decimal point <u>11 places to left</u>, so a = 5.  As we have moved the decimal point 11 places to the left, the exponent "n" is 11 and is <u>positive</u>.

\implies \sf 500,000,000,000=5 \times 10^{11}

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Learn more about scientific notation here:

brainly.com/question/28235385

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