2 years ago

9. If your heart beats 8 times in 6 seconds, then how many times will it beat in 2 minutes?

Mathematics

2 answers:

navik [9.2K]2 years ago

8 0

96 i think

Step-by-step explanation:

multiply 8×6 then the amswer ×2

Ilya [14]2 years ago

7 0

Answer:

160 times

Step-by-step explanation:

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If 4 times the sum of a number and 3 is six less than twice the number, what is the number?

Nat2105 [25]

Answer:

-9

Step-by-step explanation:

4(n + 3) = 2n - 6

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2n = -18

n = -9

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2 years ago

Which function models the area of a rectangle with side lengths of 2x - 4 units and x + 1 units?

aalyn [17]

Answer:

Area of rectangle, $f(x)=2x^2-2x-4$ .

Step-by-step explanation:

We are given with side lengths of a rectangle are (2x-4) units and (x+1) units. It is required to find the area of rectangle.

The area of a rectangle is equal to the product of its length and breadth. It is given by :

$A=L\times B$

Let us consider, L = (2x-4) units and B = (x+1) units

Plugging the side lengths in above formula:

$A=(2x-4)\times (x+1)$

$A=2x^2+2x-4x-4\\\\A=2x^2-2x-4$

So, the function that models the area of a rectangle is $f(x)=2x^2-2x-4$ .

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2 years ago

I need to know how to turn the fraction 25 over 8 into a fraction

Maslowich

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2 years ago

Susannah bought eggs for $0.79 per carton. She spent a total of $6.32. How many cartons did she buy?

Rzqust [24]

6.32 divided by 0.78= 8 cartons

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2 years ago

If prices increase at a monthly rate of 3.9%, by what percentage do they increase in a year?

kykrilka [37]

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2 years ago