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mixer [17]
3 years ago
5

Jans age is 3 years less than twice trays age. the sum of there age is 30 find the ages please

Mathematics
1 answer:
S_A_V [24]3 years ago
4 0
You must use ALGEBRA in order to solve this problem.

Step 1. T= Tray's age and J= Jan's age
Step 2. (T*2)-3 and T+J=30
Step 3. Tray must be 11 because and Jan must be 19, it never said that Tray is OLDER. 
Step 4. Recheck----- (11*2)-3=19

Sorry, I don't explain too well, I am used to doing it in my head... Hope this helps!!! :D
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Karolina [17]

There are a number of radian-degree equivalents that it would be time-saving and otherwise worthwhile to memorize. π/6 = 30 degrees is one of these. For reference, here are a few others:

radians degrees

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and so on. Good luck!


3 0
3 years ago
Is the line through points P(2, –5) and Q(–5, –1) parallel to the line through points R(5, 4) and S(–2, 5)? Explain.
Irina-Kira [14]

Answer:

the answer is No

Step-by-step explanation:

Since the first line has a slope of -4/7 and the other line has a slope of -1/7. This can be shown in point slope form y-y1=m(x-x1) where m=∆y/∆x.

Through points P and Q, the point slope is represented as -1-(-5)=m(-5-2) ; 4 = -7m ; m = 4/-7. The next two points R and S can be shown in point slope as 5-4=m(-2-5) ; 1 = -7m ; m =1/-7. With the fact that parallel lines must have equal slopes, these two lines cannot be parallel because -4/7≠-1/7

3 0
3 years ago
E) Natasha's parents want to support Natasha by saving $5000 for her college. They searched up for some investment options and c
Bas_tet [7]

Answer:

Amount she would have in 2 years at a simple interest of is

$5000 + ($5000 x 0.048 x 2) = $5480

Amount she would have in 2 years at a 4.1 % / year compounded semi- annually is :

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the first option yields a higher value in two years when compared with the second option. Thus, the first option is the best one to choose

Step-by-step explanation:

Future value with simple interest = principal + interest

Interest = principal x interest rate x time

0.048 x 5000 x 2 = 480

future value = $480 + 5000 = $5480

The formula for calculating future value with compounding:

FV = P (1 + r)^nm

FV = Future value  

P = Present value  

R = interest rate  

m = number of compounding

N = number of years

5000 x ( 1 + 0.041 / 2)^(2 x 2) = $5422.78

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Answer:

Step-by-step explanation:

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3 years ago
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Colt1911 [192]

Answer:

X = 6

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Step-by-step explanation:

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