MATHEMATICS MIDDLE SCHOOL

What is the solution to the equation 1/4 x + 2 = - 5/8 x - 5?a. x= -8

b. x= -7

c. x= 7

d. x = 8

Answers

Answer 1
Answer:

1/4 x + 2 = - 5/8 x - 5

1/4 x = - 5/8 x - 5 - 2

1/4 x + 5/8 x = -5 - 2

1/4 x + 5/8 x = -7

2/8 x + 5/8 x = -7

7/8 x = -7

7x = -7×8

7x = -56

x = -56/7

x = -8

The answer is A. x = -8

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The table shows Janisa’s scores in an archery tournament qualifying event.A 1-column table with 6 rows. Column 1 is labeled Janisa's Scores with entries 10, 10, 8, 8, 3, question mark.

Janisa needs a mean score of 8 to qualify for the archery tournament. How many points does she need on her last arrow to qualify for the tournament?

Janisa needs
total points to have a mean score of 8.
Janisa has
points so far.
Janisa needs to score
points on her last arrow to qualify for the tournament.

Answers

Answer:

this should help

Step-by-step explanation:

Answer: Janisa needs to get 10 points on the last arrow to qualify for the tournament.

Step-by-step explanation:

10 + 10 + 8 + 8 + 3 + 10 = 49

49/6 = 8.16666667

round it to nearest 1 and its 8

Which ordered pairs in the form (x, y) are solutions to the equation (x + 3)y = 14?

Choose all answers that are correct.

A.
(−5, −7)

B.
(−1, 7)

C.
(10, −2)

D.
(11, 1)

Answers

((-5)+3)(-7) = 14
(-2)(-7) = 14
14 = 14
True
A is a solution.


((-1)+3)(7) = 14
(2)(7) = 14
14 = 14
True
B is a solution.

((10)+3)(-2) = 14
(13)(-2) = 14
-26 = 14
False
C is not a solution.

((11)+3)(1) = 14
(14)(1) = 14
14 = 14
True
D is a solution.

What is the simplest form of 18/24?

Answers

The simplest form of 18/24 is 3/4.
18 can be divided by 6 to get 3.
24 can be divided by 6 to get 4.
The answer should be 3/4.
(18)/(24)=(3 * 6)/(4 * 6)=\boxed{(3)/(4)}

Stuck help me please

Answers

$322.5

----------------------

300+(300*.15*.5)

= 300+(45*.5)

= 300+(22.5)

= 300+22.5

= 322.5

The answer would be 12,000

How much money will you have if you started with $1200 and put it in an account that earned 7.3% every year for 10 years?

Answers

So an exponential equation is gonna be used for this problem. The formula for such is y=ab^x , in which the a variable is the initial value and the b variable is the growth/decay rate.

For this situation, 1200 is gonna be your a variable since you've started out with it. And as for your b variable, its gonna be 107.3%, or 1.073, since it's increasing.

Your equation should look like this: y=1200(1.073)^x and from here just plug in 10 into the x variable and solve.

Multiply (1.073)^10 (don't round answers until the end), and take that answer and multiply it with 1200, your answer should be $2427.61.

y=1200(1.073)^(10) \n y=2427.61

A store has 255 wool ponchos to sell. There are 112 adult-sized ponchos that sell for $45 each. The rest are kid-sized and sell for $32 each. If the store sells all the ponchos, how much money will the store receive?

Answers

There are 112 adult-sized ponchos for $45 each and 143 kid sized-ponchos for $32 each

112 * 45 = 5,040 
143 * 32 = 4,576 
5,040 + 4,576 = 9,616
 
If the store sells all the ponchos it will receive $9,616      
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