MATHEMATICS MIDDLE SCHOOL

Javier bought 48 sport cards at a yard sale.Of the cards 3\8 were basketball cards.How many cards were baseball cards?

Answers

Answer 1
Answer: 18 cards. 48÷8= 6 6×3=18
Answer 2
Answer: 5/8 because 3/8 is just the basketball cards and 3+5=8 :D

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83 tens × 2 tens =166

Answers

1 cube= 1 unit
1 Rod (Long)= 10 units
10 Rods (Longs)= 1 flat (1 flat=100 units)
10 flat =1 cube(1 cube=1000 units)
83×10= 830
2×10=20
830×20= 16,600
Just wanted to add more to help you understand why 83 is multiplied by ten and 2 is multiplied by 10. Its because when we use Base ten blocks, tens represent 1 Rod (Long)= 10 units. Hope it helps more.
That is actually not true
83 tens = 830
2 tens = 20
830x20=16600
So the answer is 16600

Add or subtract mentally 8.01+1.09

Answers

The answer is 9.10 (since you put an addition sign.)
Add mentally =9.10
subtract mentally=6.92

23+k+h Which statement has the same meaning as this expression? Explain your answer.

The product of 23, k, and h describes the expression, because product means add.

The quotient of 23, k, and h describes the expression, because quotient means add.

The difference of 23, k, and h describes the expression, because difference means add.

The sum of 23, k, and h describes the expression, because sum means add.

Answers

"Sum" means the result of adding.

125 percent of what number is 25

Answers

20; 125% of 20 is 25
Hope this helps :)

What is the sign of the product (3)(–3)(–2)(4)?

Answers

Lets first solve it to check the sign of the product / answer.

( 3 ) ( -3 ) ( -2 ) ( 4 )

( - 9 ) ( - 2 ) ( 4 )

( 18 ) ( 4 )

= 72.

So the sign of the product is positive.
Positive. Two negatives make a positive and the other numbers are positive also.

A student skipped a step when she tried to convert 18 hours into seconds,and she got the following incorrect result:
18 hours
60 seconds)
= 1080 seconds
1 minute
What conversion ratio did she skip in this multiple-step conversion?

Answers

Answer:

The conversion of minutes to seconds is skipped in multiple-step conversion.

Step-by-step explanation:

Given:

To convert 18 hours into seconds.

Now, to get the conversion ratio skip in this multiple-step conversion.

First we need to convert hours into minutes:

1 hour = 60 minutes.

So, 18 hours = 18* 60 minutes

                     = 1080 minutes.

Then, we convert minutes into seconds:

1 minute = 60 seconds.

So, 1080 minutes = 1080* 60 seconds

                             =  64800 seconds.

Thus, 18 hours =  64800 seconds.

As given in question the conversion from hours to seconds is there but the conversion of minutes to second is not there it is skipped so the result is incorrect.

Therefore, the conversion of minutes to seconds is skipped in multiple-step conversion.
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