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3 years ago

Michael runs 3.5 miles in 30 minutes. If he continues at this rate for 2 hours, determine his rate of change.

Mathematics

1 answer:

mezya [45]3 years ago

5 0

Remember d=rt
so its 3.5=r(0.5)

divide 3.5 by 0.5, which is 7. His rate is 7 miles per hour.

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Find the simple interest on 7,200 at 3/4% for 5 years

lakkis [162]

Answer:

$7474.08

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Simple Interest Rate Formula: $\displaystyle A = P(1 + r)^t$

A is final amount
P is principle (initial) amount
r is rate
t is time (in years)

Step-by-step explanation:

Step 1: Define

P = 7200

r = 0.75% = 0.0075

t = 5

Step 2: Solve for A

Substitute in variables [Simple Interest Rate Formula]: $\displaystyle A = 7200(1 + 0.0075)^5$
(Parenthesis) Add: $\displaystyle A = 7200(1.0075)^5$
Evaluate exponents: $\displaystyle A = 7200(1.03807)$
Multiply: $\displaystyle A = 7474.08$

7 0

3 years ago

Which expression is equal to 632?

kkurt [141]

Answer:

3. $2^{3} (3*5^{2} + 2^{2} )$

Step-by-step explanation:

I think your question missed key information, allow me to add in and hope it will fit the orginal one. Please have a look at the attached photo

My answer;

We use oder of operation to solve this question

We have BEDMAS, which means:

B - Brackets

E - Exponents

D - Division

M - Multiplication

A - Addition

S - Subtraction

In 4 answer, only answer is correct:

$2^{3} (3*5^{2} + 2^{2} )$

= $2^{3}$ (3*25 +4)

= $2^{3}$ (79 + 4)

= $2^{3}$ *83

= 8*83

= 664

3 0

3 years ago

mr franks economy car can travel 420 miles on a 12 gallon tank of gas. determine how many miles he can travel on 8 gallons

S_A_V [24]

Answer:

280 miles

Step-by-step explanation:

Divide 420 by 12 to find the unit rate of miles per gallon.

You get 35 miles per gallon

To find how many miles he can travel for 8 gallons, multiply 35 by 8.

You get 280 miles.

3 0

3 years ago

Bucky received $100 for his birthday. How many hours can he jet ski on Lake Smellsomemore if costs $15

mario62 [17]

Answer:

b hours

Step-by-step explanation:

100 minus the 10 on the jacket equals 90. 90 divided by 15 is 6

4 0

3 years ago

Plz do this my grade went down

Levart [38]

Look at picture for answer! :)

7 0

3 years ago