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2 years ago

10

The variable Z varies jointly with X and Y Z equals 36 when x equals two and Y equals 3 write the equation that relates the vari

ables

1 answer:

Veronika [31]2 years ago

4 0

Answer:

Step-by-step explanation:

Idk

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Could someone help me understand how to solve this?

monitta

Answer:

Amount in 4% account: $550

Step-by-step explanation:

Use simple interest formula $I=P\cdot r\cdot t,$ where

I = interest

P = principal

r = rate (as decimal)

t = time.

<u>4% account:</u>

$P_1=x\\ \\r_1=0.04\\ \\t_1=1,$

then

$I_1=x\cdot 0.04\cdot 1=0.04x$

<u>5% account:</u>

$P_2=1,500-x\\ \\r_2=0.05\\ \\t_2=1,$

then

$I_2=(1,500-x)\cdot 0.05\cdot 1=0.05(1,500-x)$

You have earned $69.50 in total, so

$I_1+I_2=69.50\\ \\0.04x+0.05(1,500-x)=69.50\\ \\4x+5(1,500-x)=6,950\\ \\4x+7,500-5x=6,950\\ \\4x-5x=6,950-7,500\\ \\-x=-550\\ \\x=550\\ \\1,500-x=1,500-550=950$

Amount in 4% account: $550

Amount in 5% account: $950

8 0

3 years ago

Turn 2 1/2 into a percentage

saw5 [17]

Answer:

250%

Step-by-step explanation:

(2 1/2) × 100%

= 250%

= 2.5

5 0

2 years ago

Read 2 more answers

V = e^3 when e = 7 please help me

Nuetrik [128]

Answer:

343

Step-by-step explanation:

7^3=7×7×7=343

If e is equal to 7 just multiply 7 by 7 and then multiply that answer by 7 to find 7 to the power of 3.

7 0

3 years ago

The perimeter of a square is 32cm. what is the lenght of each side

pshichka [43]

Answer:

<h2>s = 8 cm</h2>

Step-by-step explanation:

For a square, P = 4s, where s is the length of one side.

Thus, 32 cm = 4s, and s = 8 cm

8 0

2 years ago

100% as a fraction in simplest form

sergey [27]

Answer:

1

Step-by-step explanation:

100/100 =

1

srry if wrong but

hope this helps

take care

7 0

2 years ago