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Pavlova-9 [17]
3 years ago
6

I need help on all shown please help.

Mathematics
2 answers:
zhannawk [14.2K]3 years ago
7 0
26a: Samantha = S

S = -10 + (-10) + 3 (king of hearts = (-10); jack of diamonds = (-10); and 3 of spades = +3.

S= -17

26b: Warren = W

W = 7+2+(-7) (7 of clubs = 7; 2 of spades = 2; 7 of hearts = (-7)

W = 2


26c. Warren won 2>(-17)


26d. 3 of spades, jack of spades and 6 of hearts (3+10-6=7) and 1 of spades, 2 of spades, 4 of spades (1+2+4-7)

tensa zangetsu [6.8K]3 years ago
5 0
Sorry, I am a little rust on expressions so this may not be exactly what your instructor is looking for (so make it work for you):

26a: Samantha = S

S = -10 + (-10) + 3 (king of hearts = (-10); jack of diamonds = (-10); and 3 of spades = +3.

S= -17

26b: Warren = W

W = 7+2+(-7) (7 of clubs = 7; 2 of spades = 2; 7 of hearts = (-7)

W = 2


26c. Warren won 2>(-17)


26d. 3 of spades, jack of spades and 6 of hearts (3+10-6=7) and 1 of spades, 2 of spades, 4 of spades (1+2+4-7)
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nalin [4]

She should invest $30000 in the 9% fund and $10000 in the 13% fund.

<u><em>Explanation</em></u>

Suppose, the amount of investment at 9% rate is  x dollar.

As the total amount of investment is $40000 , so the investment at 13% rate will be: (40000-x) dollar

So, the amount of earnings per year from 9% fund = 0.09x dollar

and the amount of earnings per year from 13% fund = 0.13(40000-x) dollar.

Given that, the <u>total earnings per year is $4000</u>. So the equation will be......

0.09x+0.13(40000-x)=4000\\ \\ 0.09x+5200-0.13x=4000\\ \\ -0.04x=4000-5200\\ \\ -0.04x= -1200\\ \\ x= \frac{-1200}{-0.04}=30000

So, the amount of investment at 9% fund is $30000 and the amount of investment at 13% fund = ($40000- $30000)= $10000

4 0
3 years ago
Solve using substitution.<br><br> x = –2<br> 5x + 3y = 14
Nookie1986 [14]

Answer:  (-2, 8)

Explanation:

Plug x = -2 into the second equation. Isolate y.

5x+3y = 14

5(-2)+3y = 14

-10+3y = 14

3y = 14+10

3y = 24

y = 24/3

y = 8

We have x = -2 lead to y = 8.

Therefore, the ordered pair (x,y) = (-2,8) is the solution to this system.

4 0
2 years ago
Solve each equation by taking square roots<br> 9v^2=25
lisov135 [29]
<span>9v^2=25
v^2 = 25/9
v^2 = (5/3)^2
v =  + 5/3 and v = -5/3

hope it helps</span>
3 0
2 years ago
Can someone help me with this problem pleasee
Nikitich [7]

Answer:

v=8

Step-by-step explanation:

Let's solve your equation step-by-step.

16v−9v=56

Step 1: Simplify both sides of the equation.

16v−9v=56

16v+−9v=56

(16v+−9v)=56(Combine Like Terms)

7v=56

7v=56

Step 2: Divide both sides by 7.

7v

7

=

56

7

v=8

hope this helps!

6 0
3 years ago
Read 2 more answers
The explicit formula for the geometric sequence 10,30,90,180
alukav5142 [94]

Answer:

a_{n} = 10 (3)^{n-1}

Step-by-step explanation:

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a_{n} = a (r)^{n-1}

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Here a = 10 and r = 30 ÷ 10 = 3, thus

a_{n} = 10 (3)^{n-1}

7 0
3 years ago
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