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sleet_krkn [62]
3 years ago
14

Send me help plz I don’t understand

Mathematics
1 answer:
Elina [12.6K]3 years ago
8 0

Simple interest:

i = prt

where i = interest earned

p = principal deposited

r = annual rate

t = number of years

You want the interest to be $500. The rate is 4%, and the principal is $2000.

Enter those values in the formula for simple interest above and solve for t, the time in years.

500 = 2000 * 4% * t

500 = 2000 * 0.04 * t

500 = 80t

t = 6.25

Answer: 6.25 years

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Alisiya [41]

Answer:

D) 4.7

Step-by-step explanation:

this perpendicular connection with the circle center cuts this intersecting line in half, which is therefore on both sides of x 6.5 long.

I assume 16 is the diameter, so the radius is 8.

therefore, x is one side of the right-angled triangle of

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2 years ago
(HELP ASAP PLEASE!!)
olasank [31]

Answer:

Shirts = $7

Shorts $17

Step-by-step explanation:

Let:

T - shirts

S - shorts

We can make two equations out of this problem:

4T + 3S = $79

7T + 8S = $185

Through substitution we can solve for one of the unknowns. We make one equation to solve for an unknown

4T+3S=\$79\\\\3S = \$79-4T\\\\S=\dfrac{\$79-4T}{3}

We use the formula of S and insert it into the other equation:

7T+8(\dfrac{\$79-4T}{3}) = \$185\\\\7T + \dfrac{\$632-32T}{3}=\$185\\\\\dfrac{\$632-32T}{3}=\$185-7T\\\\\$632-32T=3(\$185-7T)\\\\$632-32T=\$555 - 21T\\\\-32T+21T=\$555-\$632\\\\-11T=-\$77\\\\\dfrac{-11T}{11}=\dfrac{-\$77}{11}\\\\T = \$7

Thus T-shirts are $7 each.

Now that we know T, we can use it to solve for the other unknown. You can use it on any of the formulas.

4T+3S=\$79\\\\4(\$7) + 3S = \$79\\\\\$28+3S =\$79\\\\3S=\$79-\$28\\\\3S=\$51\\\\S=\dfrac{\$51}{3}\\\\S = \$17

We know then that Shorts are $17 each.

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2 years ago
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yaroslaw [1]

Answer:

D

Step-by-step explanation:

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3 years ago
What is 400 turned into a decimal??
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This is invisible math but a whole bumber cant be converted to a decimal because if you were to see the whoole thing it would be 400.0
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3 years ago
1.6E-8 is equal to what numbers or scientific notation?
prisoha [69]
It's equal to 1.6x10^(-8)
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