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weeeeeb [17]
3 years ago
14

Tricia and Melanie are both saving money for their summer vacations. They both began saving at the same time. Tricia started wit

h $10.25 and adds $5.15 to her savings every month. Melanie did not have a starting amount but adds $10.25 to her savings every month. Which equation could be used to determine how many months, m, it will take before Tricia and Melanie both have saved the same amount of money?
Mathematics
2 answers:
fomenos3 years ago
4 0

Answer:

Approximately 2 months

Step-by-step explanation:

Tricia: f(d) = 5.15m + 10.25

Melanie: f(d) = 10.25m

f(d) is the total savings altogether

m is the amount of months

5.15(2) + 10.25 = 20.55

10.25(2) = 20.50

They will have the same amount of savings in approximately 2 months

1.990291 is the actual time (in months) they will be the same

natta225 [31]3 years ago
4 0

Answer:

it is rounded by

Step-by-step explanation:

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maks197457 [2]

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Step-by-step explanation:

4 0
3 years ago
Question number 8. Prove that 3 + √5 is an irrational number.​
Marina86 [1]

Answer :

Let's assume the opposite of the statement i.e., 3 + √5 is a rational number.

\\  \sf \: 3 +  \sqrt{5}  =  \frac{a}{b}   \\  \\   \qquad \: \tiny \sf{(where \:  \: a \:  \: and \:  \: b \:  \: are \:  \: integers \:  \: and \:  \: b \:  \neq \: 0)} \\

\\  \sf \:  \sqrt{5}  =  \frac{a}{b}  - 3 =  \frac{a - 3b}{b}  \\

Since, a, b and 3 are integers. So,

\\ \sf \:  \frac{p - 3b}{b}  \\  \\  \qquad \tiny \sf{ \: (is \:  \: a \:  \: rational \:  \: number \:) } \\

Here, it contradicts that √5 is an irrational number.

because of the wrong assumption that 3 + √5 is a rational number.

\\

Hence, 3 + √5 is an irrational number.

7 0
3 years ago
I keep believing the answer is either 18,000 or 1,800 but im incorrect. Can someone please help me?? I use the formula A^2 *2*A*
Yuri [45]

The base is a square, so the area of the square is (10 cm)² = 100 cm²

To find the area of each triangle use the formula

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10 cm • 9 cm = 90 cm²

now multiply by the number of triangles

90 cm • 4 = 360 cm²

Add the area of the square:

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I hope it's correct

4 0
2 years ago
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Ludmilka [50]

Answer:

D

Step-by-step explanation:

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3 0
3 years ago
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shepuryov [24]

Answer:

The answer is option B.

Step-by-step explanation:

B is proportional because it's adding 1/4 each time. A is not.

Hope this helps.

Please mark as brainliest.

3 0
3 years ago
Read 2 more answers
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