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2 years ago

85% of 40 emails equals

Mathematics

2 answers:

zzz [600]2 years ago

7 0

The answer is 34, you have to move the decimal point

pantera1 [17]2 years ago

6 0

34 emails.

85% = 0.85
We move the decimal twp places to the right if it is a percentage.

40*0.85 = 34

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What is the quotient of 5/6+2/7 A. 35/12 B. 52/42 C. 7/13 D. 5/21

BlackZzzverrR [31]

Answer is A. 35/12

Step by step.
Quotient is division.
5/6 divided by 2/7 = x
To divide fractions, flip one and multiply.
5/6 x 7/2 = 35/12
So your answer is A. 35/12.

4 0

1 year ago

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The side of the parallelogram in the figure above are given in cm.

GrogVix [38]

solution

or, 2 x + y = 5 y - 8 being opposite side of

parallelogram

or , 2x =5 y - y - 8

or, 2x = 4 y - 8

or, x = 4y - 8/2

or,. x = 2y- 4

therefore, 2x + y is equal to 5 y - 8 Being the opposite side of a parallelogram

now,

3y + 2 x is equal to 4x - 3 being opposite side of a parallelogram

or, 3y + 2 x-4x = -3

or,. 3y -2x = -3

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3 years ago

moby sold half his toy car collection, and then bought 12 more cars the next day. he now has 48 toy cars . how many cars did he

Zinaida [17]

Answer:

Step-by-step explanation:

48-12 = 36

36/2

5 0

2 years ago

F ind the volume under the paraboloid z=9(x2+y2) above the triangle on xy-plane enclosed by the lines x=0, y=2, y=x

olga nikolaevna [1]

Answer:

The answer is 48 units³

Step-by-step explanation:

If we simply draw out the region on the x-y plane enclosed between these lines we realize that,if we evaluate the integral the limits all in all cannot be constants since one side of the triangular region is slanted whose equation is given by y=x. So the one of the limit of one of the integrals in the double integral we need to evaluate must be a variable. We choose x part of the integral to have a variable limit, we could well have chosen y's limits as non constant, but it wouldn't make any difference. So the double integral we need to evaluate is given by,

$V=\int\limits^2_0 {} \, \int\limits^{x=y}_0 {z} \, dx dy\\V=\int\limits^2_0 {} \, \int\limits^{x=y}_0 {9(x^{2}+y^{2})} \, dx dy$

Please note that the order of integration is very important here.We cannot evaluate an integral with variable limit last, we have to evaluate it first.after performing the elementary x integral we get,

$V=9\int\limits^2_0 {4y^{3}/3} \, dy$

After performing the elementary y integral we obtain the desired volume as below,

$V= 48 units^{3}$

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2 years ago

6.24 x 10-5 - 4.091 x 103 =

castortr0y [4]

Is the 10 taking away 5 or was it meant to me 10.5 ?

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2 years ago

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