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konstantin123 [22]
3 years ago
9

What’s the answer to this

Mathematics
1 answer:
ss7ja [257]3 years ago
4 0

Answer:

I think D

Step-by-step explanation:

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Matt paid $450 in interest on a 15 month note for<br> $5600. Find the rate of interest paid.
Olin [163]

Answer:

The rate is 6.43%

Step-by-step explanation:

Given

I = 450 --Interest

P = 5600 -- Principal

T= 15\ months --Time

Required

Determine the rate

Using simple interest formula:

I = PRT

Make R the subject

R = \frac{I}{PT}

Convert time to years

T= 15\ months

T =\frac{15}{12}\ years

T =1.25\ years

Substitute values for I, P and T

R = \frac{450}{5600*1.25}

R = \frac{450}{7000}

R = 0.0643

Convert to percentage

R = 0.0643*100\%

R = 6.43\%

7 0
3 years ago
Identify the surface area of the composite figure. HELP PLEASE!!
Novosadov [1.4K]

Answer:

Step-by-step explanation:

I've already done this question for you. You must be reposting it because the answer was not correct according to the way the computer was programmed to get the answer. I can only think that you don't count the interface between the cube and the larger figure at all. So let's do it that way.

Start with the cube.

The formal equation is Area = 5 * s^2

It has 5 equal sides each one measuring 3 * 3

Area = 5 * 3^2 =                                                                              45

Now go to the other figure

The front and back face measure 14*6*2                                = 168

Left and Right Sides are 2 * 6 * 8                                                 96

Top and Bottom              2 * 14 *8                                              224

Don't count the base of the cube at all so subtract 3*3             -9

Total                                                                                             524

If that does not work, please leave a note at the bottom of this question.

5 0
4 years ago
The area of land that Rhode Island covers is approximately 1.5X10^3 square miles. The area of land that Alaska covers is a littl
Katarina [22]
You just multiply 1.5x10^3 by 4.3x10^2. 1.5x10^3 is equal to 1500 (move the decimal to the right as many spaces as the exponent gives) and 4.3x10^2 is equal to 430. 1500*430=645000. To get that back down to scientific notation, we would have to move the decimal back to between the 6 and 4 to get 6.45 (Zeros aren't included in scientific notation) We moved the decimal to the left five spaces do the exponent is 10^5. We are left with 6.45x10^5
4 0
4 years ago
Solve for b .<br><br> -9 b = 27<br><br> b =
saul85 [17]

Final Answer: b = -3

Steps/Reasons/Explanation:

Question: Solve for b. -9 b = 27. b = ?

<u>Step 1</u>: Divide both sides by -9.

b = -\frac{27}{9}

<u>Step 2</u>: Simplify \frac{27}{9} to 3.

b = -3

~I hope I helped you :)~

5 0
3 years ago
Read 2 more answers
Which pair shows equivalent expressions?<br> (Look at picture)
Leona [35]

Answer:

-2x - 10 = -2(x + 5)

Step-by-step explanation:

-2x - 10 is already simplified, but in order to understand the solution, we need to simplify -2(x + 5) in order to show that it is an equivalent expression:

-2(x + 5) = -2x - 2(5)

Further simplify:

-2x - 10

This proves that -2x - 10 = -2(x + 5) is an equivalent expression.

8 0
4 years ago
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