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ludmilkaskok [199]
3 years ago
11

Find the length of a picture frame whose width is 3 inches and whose proportions are the same as a 9-inch wide by 15-inch long p

icture frame.
Mathematics
1 answer:
Artist 52 [7]3 years ago
7 0

Answer:

The length is 5 inches.

Step-by-step explanation:

9/3=15/?

If you divide 9 by 3, you get 3 if you compare things you have to do the same on the other 'side'. So you do 15 divided by 3, the answer is 5.

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2) -4(3n + 6) + 4 = -104<br> A) {3} B) {-1},<br> C) (7) D) {-12}
Misha Larkins [42]
Answer is C 7 D -12 for this question
8 0
3 years ago
Skylar plans to use $3400 to open a savings account with an annual interest rate of 1.15%. How much more interest will he earn o
erik [133]
Given
Present investment, P = 3400
APR, r = 0.0115
compounding time = 13 years
Future amount, A 

A. compounded annually
n=13*1=13
i=r=0.0114
A=P(1+i)^n
=3400*(1+0.0115)^13
=3944.895

B. compounded quarterly
n=13*4=52
i=r/4=0.0115/4
A=P(1+i)^n
=3400*(1+0.0115/4)^52
=3947.415


Therefore, by compounding quarterly, he will get, at the end of 13 years investment, an additional amount of
3947.415-3944.895
=$2.52 (to the nearest cent)
6 0
2 years ago
If 5a+b=14 then a = what<br> explain how you got it pls
Trava [24]

Answer:

a = \frac{14 - b}{5}

Step-by-step explanation:

The rule to know and follow is:

You can add, subtract, multiply or divide by anything so long as the same thing is done to both sides of the equals sign;

5a + b = 14

If we want to get: "a = ...", then we use the rule to isolate the variable a on one side of the equation;

Firstly, we subtract b from both sides:

5a + b - b = 14 - b

5a = 14 - b

Then, divide both sides by 5:

\frac{5a}{5} = \frac{14 - b}{5} \\\\ a = \frac{14 - b}{5}

8 0
2 years ago
Show that if n is an integer and n^3 + 5 is odd then n is even
Salsk061 [2.6K]
If n is odd then its cube is also odd because odd times odd is odd. When we add 5, an odd number, we get an even number.
If n is even, its cube is also even so adding an odd number makes the sum odd. So if the expression is odd, n must be even.
3 0
3 years ago
Which property is displayed in the example below: 4(x + 3) = 4x + 12
Veseljchak [2.6K]

Answer:

This equation displays the distributive property which states that a(b + c) = a(b) + a(c).

3 0
3 years ago
Read 2 more answers
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