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4 years ago

Kendra needs 1 dollar to buy a ball she has 73 cents what coins does she need to add her 73 cents

Mathematics

1 answer:

Alexeev081 [22]4 years ago

5 0

Answer:

Kendra needs 3 coins (1 coin of 25 cent & 2 coins of 1 cent) to add 27 cents in 73 cents to make 1 dollar

Step-by-step explanation:

Given :

Kendra has 73 cents

She need 1 dollar to by a ball

∴ She requires additional money = $1\ dollar - 73 \ cents = 27 \ cents$

Standard Coins available are 50 cents , 25 cents, 10 cents, 5 cents and 1 cent.

To make 27 cents = $25+1+1$ = 1 coin of 25 cent & 2 coins of 1 cent

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Annie invests $400 in a bank that offers 5.5% simple annual interest after 6 years her investment will increase by blank dollars

Zinaida [17]

Answer:

Her investment will increase by 551.54 dollars

Step-by-step explanation:

So we know that the exponential function formula is f(x)=a(1+r)^x

So knowing that we can input values

So now we have f(x)=400(1+0.055)^6

Since it is annual we will only have the interest yearly so that changes are equation to look like this f(x)=400(1+0.055/1)^6

So next we have to add 1 and 0.055 which is 1.055

So we input that into the equation so now we have f(x)=400(1.055/1)^6

Now we have to do (1.055/1) to the power of six, so we get 1.37884280676

Now we have to 1.37884280676 times 400, which would be 551.537122705.

Assuming they want to the nearest 100th it would be 551.54

So the answer is 551.54 dollars

Hopefully, that helped. If I made any mistake or I am incorrect feel free to correct me. :)

5 0

3 years ago

Find the distance between the points (0, 10) and (–9, 1).

dimulka [17.4K]

$\\ \sf\longmapsto \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$\\ \sf\longmapsto \sqrt{(-9-0)^2+(1-10)^2}$

$\\ \sf\longmapsto \sqrt{(-9)^2+(-9)^2}$

$\\ \sf\longmapsto \sqrt{81+81}$

$\\ \sf\longmapsto \sqrt{162}$

$\\ \sf\longmapsto 12.42$

5 0

3 years ago

Smith is a weld inspector at a shipyard. He knows from keeping track of good and substandard welds that for the afternoon shift

lord [1]

Answer:z = 3.87

Step-by-step explanation:

learning abt this in school rn

8 0

3 years ago

Find the product. (–5k + 5)(–5k2 + 2k – 8)

boyakko [2]

Answer:

25 K³ - 35k²+ 50 K - 40

===========================================

Step-by-step explanation:

Given that :

(-5k + 5)(-5k² + 2k - 8)

= -5K (-5k² + 2k - 8) + 5 (-5k² + 2k - 8)

= 25 K³ - 10k² + 40 K - 25 K² + 10 K - 40

= 25 K³ - 35k²+ 50 K - 40

So, the product = 25 K³ - 35k²+ 50 K - 40

5 0

3 years ago

Find the 12th term of the sequence which has a first term of 14 and has a common ratio of 1.03. Round your answer to the nearest

wel

Since the series has a common ratio then it is a geometric series.
thus it will follow the explicit formula given by:
an=ar^(n-1)
plugging in the values we get:
an=14(1.03)^(n-1)
thus the 12th term will be:
a12=14(1.03)^(12-1)
a12=19.38

5 0

3 years ago