MATHEMATICS MIDDLE SCHOOL

Choose and appropriate metric unit for the height of a giraffeA) Milliliter
B) Liter
C) Gram
D) Meter

Answers

Answer 1
Answer: THE ANSWER İS; D.
BECAUSE; IT İS MEASURED BY METERS. :)

GOOD LUCK. :)

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Decrease from 126 ounces to 48 ounces

Answers

78 is the answer BEST OF LUCK

PLEASE HELP I GIVE THANKS

Answers

Alright, since you know the two shapes are similar, this means the scaling ratios are the same, and all sides will produce the same fraction when compared to one another, e.i : LK to BA. You start by making a fraction of the two sides with lengths you know, giving you the fraction 10/3 from BA to LK. Then by cross multiplying in the equation below you get the answer of :

10/3= 4/y    to   10y=12. then by dividing by 10 you get the answer of 1.2 cm or A

A bank contains 30 coins, consisting of nickels, dimes, and quarters. There are twice as many nickels as quarters and the remaining coins are dimes. If the total value of the coins is 3.35. What is the number of each type of coin in the bank?

Answers

Answer:

Quarters: 7

Dimes: 9

Nickels: 14

Step-by-step explanation:

Bank --> 30 coins

Base Equations:

N+D+Q=30

5N+10D+25Q=335

Equation 1: 2Q=N

Equation 2: D=30-(N+Q)

                   Substitute Equation1 :  D=30-(2Q+Q)

                   D=30-3Q

0.05(2Q)+0.10(30-3Q)+0.25Q=3.35

0.10Q+3-0.3Q+0.25Q=3.35

0.5Q+3=3.35

0.5Q=0.35

Q=7

if Q=7, N= 2*Q

N=14

D=9

Check Step:

7*25=175

14*5=70

9*10=90

175+70+90=335

Correct

Final answer:

To solve the problem, equations based on the relations between the number of nickels, dimes, and quarters are established. By substituting into these equations and solving them, it was determined that the bank contains 10 quarters, 20 nickels, and 0 dimes.

Explanation:

The student's question relates to solving a system of equations based on the given conditions regarding nickels, dimes, and quarters in a bank. Let's denote the number of quarters as q, the number of nickels as n, and the number of dimes as d. According to the problem, there are twice as many nickels as quarters, so we can write n = 2q. The total number of coins is 30, which gives us the equation n + d + q = 30. The total value of the coins is $3.35, which translates to 0.05n + 0.10d + 0.25q = 3.35. Using these three equations, we can solve for n, d, and q.

  • First equation (number of nickels and quarters): n = 2q
  • Second equation (total number of coins): n + d + q = 30
  • Third equation (total value of coins): 0.05n + 0.10d + 0.25q = 3.35

Substituting the first equation into the other two, and solving for q and d, we find that there are 10 quarters, 20 nickels, and 0 dimes. Thus, in the bank there are 10 quarters, 20 nickels, and no dimes.

Learn more about System of Equations here:

brainly.com/question/21620502

#SPJ3

If a baseball and a bat cost $1.10 together, and the bat costs $1.00 more than the ball, how much does the ball cost?

Answers

Contrary to the above answer, the ball does not cost $0.10! If the ball were to cost 0.10 then the bat must cost $1.00 which is only $0.90 more than the ball! We can solve this equation correctly using an expression like so:
b = price of the ball
b + 1 = price of the bat
b + (b + 1) = price of the ball + price of the bat
b + b + 1 = 1.10
Therefore reareanging the equation:
2b = 0.10
And therefore:
b = 0.05
So the ball costs $0.05 and the bat costs $1.05 :))

23 7/5
simplest form

Answers

23 7/5 = 23 + 7/5

7/5 can also be written as 1 2/5

And so then:

23 + 1 2/5

= 24 2/5

And that is your answer (:

0.4(2x-9)-0.6(4x+5)=

Answers

Answer:

From what I can comprehend I believe the answer is 3.2x + -4

Step-by-step explanation:

0.4(2x-9) = 0.8x - 9

0.8x - 9 - 0.6(4x+5)=

0.8x - 9 + 2.4x+5

0.8+2.4 = 3.2x

-9 + 5 = -4

3.2x + -4
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