MATHEMATICS MIDDLE SCHOOL

Evaluate 3/7r + 5/8s when r = 14 and s = 8.

Answers

Answer 1
Answer:

Answer:

11

Step-by-step explanation:

we have

(3)/(7)r+(5)/(8)s

Substitute the values of r=14 and s=8 in the expression to evaluate

(3)/(7)(14)+(5)/(8)(8)

=3*2+5

=6+5

=11
Answer 2
Answer: 3/7 (14) + 5/8 (8)

= 6 + 5

=11<answer

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A circle has a circumference of 15cm what is the diameter of the circle

Answers

4.77cm
The formula for the diameter can be expressed as C = πd where d is the diameter as the diameter is twice the radius. C = 15π = 47.12cm (2dp)

One pallet can store 15^5 water bottles. A stock room receives 15^13 water bottles. Enter the number of pallets needed to store all the water bottles the stock room received.

___pallets

Answers

Answer:

3 pallets

Step-by-step explanation:

Divide to find the amount of pallets:

Subtract Exponents to divide

15^13 / 15^5 = 13 - 5 = 8 - 5 = 4 (subtracted 2 times)

You need three to store ALL the water

Ten decreased by twice a number is the same as -28

Answers

Answer:

The answer is 10-(9*2)=-28

Step-by-step explanation: Ten subtracted from 28 is 18, then you would divide that by two to get 9. Hope this helps!!

The flow rate of the gas pump is 2/3of a gallon in 1/9 of a minute,compute the unit rate

Answers

Answer:

The unit rate is 6 gallons per minute.

Solution:

Given, The flow rate of the gas pump is 2/3 of a gallon in 1/9 of a minute,

We have to compute the unit rate?

We know that, a unit rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity

Here first quantity is gas and the second quantity is time

\text { Now, unit rate }=\frac{\text { first quantity }}{\text { second quantity }}

=\frac{(2)/(3) \text { of gallons of gas }}{(1)/(9) \text { minute }}=((2)/(3))/((1)/(9))=(2)/(3) * (9)/(1)=2 * 3=6

Hence, the unit rate is 6 gallons per minute.

Answer:

6 GALLONS PER MINUTE

Step-by-step explanation:

Jack is at a shop and sees than 5 antiques cost $10.he need 30 antiques cost

Answers

your answer would be 60 hope this help because if you count by 5 to thirty you end up with six fingers up and 10 times 6 is 60 :)
30 antiques would cost $60 because since 5 cost $10 and 5*6= 30, 10*6=60

You bought a car for $20,000. You have owned it for one year, and it is now worth $16,000. What is the percent decrease in your car's value?

Answers

Bought for $20,000-$16000( present rate)=$4000 is the difference
$2000 is 10% of 20000 times 2 is $4000=answer
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