MATHEMATICS MIDDLE SCHOOL

Plz help
15 points and best answer to the first answer!
plz help 15 points and best answer to the first - 1

Answers

Answer 1
Answer: The probability that Cory picks a red pen is (6)/(10)=(3)/(5)
The probability that then Todd picks a red pen is (5)/(9)

(3)/(5)\cdot(5)/(9)=(1)/(3) \Rightarrow A

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If the solution to the equation is x = -2, find the value of a4x-2(x-a)= 14

If a carpenter has ⅜ a piece of wood and wants to cut it into 1/16 pieces to make shelves. How many shelves can he make?

Answers

Answer:

6 shelves

Step-by-step explanation:

3/8 = 6/16

6/16 divided by 1/16

Answer:

The carpenter can make 6 shelves.

Step-by-step explanation:

3/8 ÷ 1/16.

Turn multiplication sign to division sign.

Flip 1/16 to 16.

3/8 x 16 = 48/8 = 6.

Hope this helped.

Sari has a bag containing 6 half dollars and 3 dollar coins. What is the total mass of the coins in Sari's bag? PLZ HELP... :)

Answers

Answer with explanation:

Number of half Dollars in Sari's Bag= 6 Half Dollars

1 Half Dollar =50 cents=1 coin

or, 6 Half Dollars =3 Dollars

It means there are 6 cents in Sari's Bag or 3 Dollars in the Sari's bag.

Total Number of Coins in Sari's Bag=(3 Dollar coins+3 Dollar coins)or (3 Dollar coins+ 6 Cents coins)

⇒→Total Mass of the coins in Sari's Bag=Mass of(3 Dollar coins+6 Cent coin) or Mass of (3 Dollar coins+3 Dollar coins)

=Mass of(3 Dollar coins+6 Cent coins) or Mass of (6 Dollar coins)
Well, if she has 6 half dollars, that is 6 coins.
If she has 3 dollar coins, that is 3 coins. 
altogether that is 9 coins.

are you sure you worded the question right because that was really easy

A pile of newspapers in Ms. McGrath’s art class was 17 3/4 inches high. Each consecutive week, for the next 5 weeks, the height of the pile of newspapers increased by 8 7/12 inches. What was the height, in inches, of the pile after 3 weeks?

Answers

If you would like to know what was the height, in inches, of the pile after 3 weeks, you can calculate this using the following steps:

17 3/4 inches + 3 * 8 7/12 inches = 71/4 + 3 * 103/12 = 213/12 + 309/12 = 522/12 = 87/2 = 43 1/2 inches

The correct result would be 43 1/2 inches.

Let

x--------> the number of weeks

y--------> the height of a pile of newspapers in inches

we know that

17(3)/(4)=(17*4+3)/(4) =(71)/(4)

8(7)/(12)=(8*12+7)/(12) =(103)/(12)

y=(103)/(12)x+(71)/(4)

To find the height after 3 weeks

Let

x=3\ weeks and substitute in the equation

y=(103)/(12)*3+(71)/(4)

y=(174)/(4)

y=43.5\ in

y=43(1)/(2) \ in

therefore

the answer is

the height, in inches, of the pile after 3 weeks is 43(1)/(2) \ in

-2 divided by 1/4 please show your work

Answers

-2 / 1/4
If you are dividing you have to switch 1/4 to 4/1

-2/1  / 4/1
= -8
Hope this helped

Please help! Solve for a.

Answers

what am I solving? Like what is the question?

Simplify the expression. -10 x 6 x 1/2 + 45A.
75

B.
–35

C.

–45

D.
15


Simplify the expression. 2/3 x [15 x 5 + (-24)] + (-18)

A.

52


B.
48

C.
22

D.
16

Answers

Hi there, 1. -10*6*1=-60, 60/2=30, 45-30=15. So, -10*6*1/2+45=D. 15, 2. 2/3*15*5+-24+-18=D. 16, Therefore, 1 is D. 15 and 2 is D. 16
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