MATHEMATICS MIDDLE SCHOOL

The sum of four consecutive numbers is 90. Find the numbers.

Answers

Answer 1

Answer:

Answer:

21, 22, 23, and 24

Step-by-step explanation:

90/4=22.5

22.5 is the middle of all of the numbers

so, the numbers are 21, 22, 23, and 24

Answer 2

Answer: 21,22,23,24 because
$90 / 4 = 22.5$
and 22.5 is the middle of all the numbers 21,22,23,24

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What is the ratio of the volume of the cone to the volume of the cylinder?

Answers

1:2:3 is the ratio of the volume of the cone to the volume of the cylinder

Answer:

1:2:3

Step-by-step explanation:

The volume of the cylinder is three times the volume of the cone. i.t 7. A cone, a hemisphere and a cylinder stand on equal bases and have the exactly same height.So, The ratio of the cylinder, cone and hemisphere is 1:2:3

What is four divided by five/sixths

Answers

To work this particular problem I would first cover 4 in to a fraction which would be 8/2. Next you will multiple by the reciprocal of 5/6, which would be 6/5.

8/2 * 6/5 = 48/10. This then reduces to 24/5 or 4 4/5.

If this is correct your problem looks like: 5/6 ÷ 4. Well each (pie) would have 1/6 left of course. So add those up.........4/20 or 4/2. I did it and got both. :(
I still hope this helps! :D

2) Amanda invests $6,540 in a retirementaccount with a fixed annual interest rate of
5% compounded 6 times per year. What will
the account balance be after 20 years?
A) $16,031.88 B) $17,704.05
C) $15,329.01 D) $16,844.10

Answers

Answer:

B) $17,704.05

Step-by-step explanation:

20 years later is a time in the future so you use Future value formula;

FV = PV* (1+r)^t

where PV= Amount invested in the present = $6,540

r= discount rate = (5% / 6) = 0.833% or 0.00833

t= total duration = 20 *6 = 120

Next, plug in the numbers into the formula;

=6,540* (1+0.00833)^120

=6,540 * 2.707041491

= 17,704.05

What is the exact area of a circle whose diameter is 24 cm?A.
576 pi cm2

B.
144 pi cm2

C.
48 pi cm2

D.
24 pi cm2

Answers

The answer is C thx you

The area of a circle is A = pi times r squared, where r is the radius and A is the area, and the diameter is given as 24. The radius is equal to one half of the diameter, therefore the radius is 12. Now substitute the equation for area of a circle with these values: A = pi times 12 squared A = pi times 144

Which property is illustrated below?1 + 7 = 7 + 1

commutative property of addition
distributive property
associative property of addition
identity property of addition