1.)37 1/4 + 41 5/6=
2.)-128.5 + 262.5=

Answers

Answer 1

Answer: 1. 79.0832. 134.............................

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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

bactena population doubles n sze every 5 hours. After 5 hours, the sample contains 2,000 bacteria Which equation best models y. the population size after x hours?

Answers

Answer:

$Y=1000*2^(x)$

Step-by-step explanation:

It is given that A bacteria population doubles in size every 5 hours. After 5 hours, the sample contains 2,000 bacteria.

and also Y=populations size and x=number of hours.

so at x=0 , Y=1000 and after 5 hours x=5 ,Y=2000. and after 5 more hours

at x=10, Y=4000

so we see that it is doubling every 5 hours i.e. the Equation will be like this

$Y=1000*2^(x)$

where x= multiple of 5 years.

Why is 9 -1is 8 can some one help me because i dont understand why is not 10

Answers

Ah, the dash, this thing, - means subtraction, which is the opposite of addition, and takes away numbers. Meaning 9-1 is 9, but you count down by 1 rather than up one.

Its 8 because your not adding your subtracting.

Nilsa is working on a 60 minute math test. There are 20 questions on the test. If it takes her 20 minutes to complete 12 of the questions, what is the greatest amount of time on average she can spend on each of the 8 remaining questions?

Answers

since Nilsa already used 20 mins on the test there are 40 mins left so
there are 40 mins and 8 questions left. 40/8 equals 5 so 5 mins is the greatest amount of time on average she can spend on each of the 8 remaining questions

Nilsa can spend at least 5 Minutes on each remaining question. Take 60 minutes - 20 minutes to get 40 minutes then divide by 8 questions to get 5 minutes / question

What is 4/5 divided by 7/10

Answers

4/5 divided by 7/10 is equal to 8/7.

We have

To divide fractions, we multiply the first fraction by the reciprocal of the second fraction.

The reciprocal of a fraction is obtained by flipping it, which means swapping the numerator and the denominator.

So, to divide 4/5 by 7/10, we multiply 4/5 by the reciprocal of 7/10.

Reciprocal of 7/10 = 10/7

Now we can multiply:

(4/5) x (10/7)

Multiplying the numerators and denominators gives us:

(4 x 10) / (5 x 7) = 40/35

To simplify the fraction, we can divide both the numerator and the denominator by their greatest common divisor, which is 5:

40/35 = (40 ÷ 5) / (35 ÷ 5) = 8/7

Therefore,

4/5 divided by 7/10 is equal to 8/7.

Learn more about expressions here:

brainly.com/question/3118662

#SPJ6

7/10 divided by 4/5 is the equivalent to 7/10 multiplied by 5/4....as in if you want to divide a fraction by a fraction you multiply by the reciprocal.therefore the answer is 7/8. if you wanted to use decimals like emily, you would divide .7 by .8... and get .875 or 7/8.

A chocolate cake recipe calls for 12 fluid ounces of milk. If your measuring cup is not marked in fluid ounces, how many cups of milk will you add?