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3 years ago

I need help with this and pleases explain this its due today

Mathematics

2 answers:

Gwar [14]3 years ago

7 0

Answer:

1. x= 20/3 or 6.6666 repeating

2. x=3

3. a=39

Step-by-step explanation:

1. subtract 25 by 5 to get 20, then divide 20 by 3 to get x

2. divide 7 by 21 to get x

3. add 8 to 31 to get a equals 39

kolbaska11 [484]3 years ago

5 0

Answer:

x = 6.6 repeating 7

Step-by-step explanation:

subtract 5 on both sides

ur left with 3x = 20

divide by 3 on both sides

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Mr. Warren Buffett invested $20 000. Part of it he put in the bank at 5% interest. Part of it he invested in

netineya [11]

Answer:

Vehicle one he put $10000

Vehicle two he put $1000

Step-by-step explanation:

Interest= PRT/100

Interested= x

P1 +P2= $20000

X1+x2= $1200

R1= 5%

R2= 7%

(P1*5*1)/100= X1

5p1=100 X1.....

P1= 20X1...

(P2*7*1)/100= X2

7p2= 100X2

P2= 100/7 X2

P1 +P2= $20000

20X1 + 100/7 X2= 20000

7X1 +5x2= 7000...equation one

X1+x2= 1200 ....equation two

Multiplying equation two with 7

7X1 +7X2= 8400

7X1 +5x2= 7000

Solving simultaneously

2X2=1400

X2= 700

P2= 100/7 X2

P2= 100/7 (700)

P2= 10000

But X1+x2= $1200

X1= 1200-700

X1= 500

P1= 20X1

P1= 20(500)

P1= 10000

Vehicle one he put $10000

Vehicle two he put $1000

7 0

3 years ago

If A = 30° and r = 12, find x. (Round your answer to the nearest whole number.)

Margaret [11]

Answer:

$\boxed{12}$

Step-by-step explanation:

A = 30° and r = 12

$\sin A = \frac{r}{r + x}$

$\sin 30 = \frac{12}{12 + x}$

$\frac{1}{2} = \frac{12}{12 + x}$

$1(12 + x) = 2(12)$

$12 + x = 24$

$x = 24 - 12$

$x = 12$

Happy to help :)

6 0

3 years ago

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If the production rate is 1,325 cookies per hour at a bakery, how many cookies will be produced in an 8 hour shift?

Vilka [71]

Answer:

Number of cookies produced in 8 hour are 10,600 cookies.

Step-by-step explanation:

If the production rate of cookies in a bakery is 1325 cookies per hour, we need to tell how many cookies will be produced in 8 hour shift.

Number of cookies produced in 1 hour = 1325 cookies

Number of cookies produced in 8 hour = 1325 * 8

= 10,600 cookies.

So, Number of cookies produced in 8 hour are 10,600 cookies.

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3 years ago

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Identify a possible first step using the elimination method to solve the system and then find the solution to the system. 3x + 2

mrs_skeptik [129]

A) Multiply second equation by 2, solution

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3 years ago

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