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2 years ago

Gergio ran 5 kilometers in 30min. If he ran at this same pace how many did he run each min

Mathematics

1 answer:

Leokris [45]2 years ago

7 0

Answer:

6 minutes per kilometer

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A company produces metal slabs for industrial use. the slabs come in 3 thicknesses: 5in, 10in, and 15in. the weights of each thi

Len [333]

Given slabs thicknesses 5in, 10in, and 15in.

Therefore,<u> </u><u>ratio of thicknesses in simplest form would be 1:2:3.</u>

Metal 1 thicknesses = 150lbs, 300lbs, 600lbs

Dividing by 150, we get ratio of Metal 1 thicknesses = 1:2:4.

Metal 2 thicknesses = 130lbs, 260lbs, 390lbs.

Dividing by 130, we get ratio of Metal 2 thicknesses = 1:2:3.

Metal 3 thicknesses = 310lbs, 620lbs, 930lbs.

Dividing by 310, we get ratio of Metal 3 thicknesses = 1:2:3.

Metal 4 thicknesses = 140lbs, 280lbs, 420lbs.

Dividing by 140, we get ratio of Metal 4 thicknesses = 1:2:3.

<u>We can see the ratios of thicknesses of Metal 1 are 1:2:4 but it should be 1:2:3.</u>

Therefore, Metal 1 weight is not proportional to thickness.

5 0

3 years ago

Read 2 more answers

If you multiply 6 positive numbers, the product sign will be __.

egoroff_w [7]

The sign will be positive

8 0

2 years ago

Classify each system. the system shown below is . x + 3y = 4 3x + 9y = 12 the system shown below is . 3x – 4y = 12 6x – 8y = 21

crimeas [40]

The first one is consitent and dependent

The second one is inconsistent

The third one is consistent and independent

3 0

2 years ago

Read 2 more answers

The total cost to produce x handcrafted wagons is C(x) = 110 + 7x - x^2 + 2x^3. Find the marginal cost when x = 8.

nataly862011 [7]

<h2>Answer:</h2>

The marginal cost when x=8 is:

375

<h2>Step-by-step explanation:</h2>

We know that the marginal function for a cost function C(x) at x=a

is given by:

C'(x) at x=a

Here we have the cost function C(x) as:

$C(x)=110+7x-x^2+2x^3$

Now we find the derivative of C(x) with respect to x.

i.e.

$C'(x)=0+7-2x+6x^2$

( Since,

$\dfrac{d}{dx} x^n=nx^{n-1}$ )

$C'(x)=7-2x+6x^2$

Hence, we get:

$C'(8)=7-2\times 8+6\times (8)^2\\\\i.e.\\\\C'(8)=7-16+384\\\\C'(8)=375$

8 0

2 years ago

Richard has $1,089.26 in his checking account at the end of the month. During the month, he withdrew $120, deposited a check for

kykrilka [37]

Answer:

The first option is the right answer $ 845.16

Step-by-step explanation:

1.089.26-120=969.26

969.26+325=1.294.26

1.294.26-425=869.26

869.26-24.10= 845.16

5 0

3 years ago