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2 years ago

13

A marathon is 26.2 miles long sue wants to run a marathon in 4 hours what is the average number of miles she must run in an hour

?

1 answer:

harkovskaia [24]2 years ago

8 0

Answer:

6.55 miles in one hour

Step-by-step explanation:

26.2 divided by 4 = 6.55

that would give you the miles in one hour.

Hope that helps:)

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I need help on questions 48 and 49.

xenn [34]

48. A square's sides are equal, so we know that its area is a number multiplied by itself, or squared. To find the length of one side, you must take the square root of its area, 156.25, which is 12.5. To find the square's perimeter (how much fence we need to go around the garden) you must multiply that side by 4, to get 50. Antonine has 40 ft already, so he only needs 10 more ft, and each ft costs 4.97. Our final answer is 10*4.97, or $49.70.

49. The square root of 12 is about 3.46, plus 2 is our answer, about 5.46 cm.

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3 years ago

Which action will solve the equation? m−20=9 Subtract 9 from each side. Add 20 to each side. Subtract 20 from each side. Add 9 t

djyliett [7]

Answer:

m=29

Step-by-step explanation:

add 20 to both sides and that is what m equals

7 0

2 years ago

Find a set of parametric equations for y= 5x + 11, given the parameter t= 2 – x

Sati [7]

Answer:

$x = 2-t$ and $y = -5\cdot t +21$

Step-by-step explanation:

Given that $y = 5\cdot x + 11$ and $t = 2-x$ , the parametric equations are obtained by algebraic means:

1) $t = 2-x$ Given

2) $y = 5\cdot x +11$ Given

3) $y = 5\cdot (x\cdot 1)+11$ Associative and modulative properties

4) $y = 5\cdot \left[(-1)^{-1} \cdot (-1)\right]\cdot x +11$ Existence of multiplicative inverse/Commutative property

5) $y = [5\cdot (-1)^{-1}]\cdot [(-1)\cdot x]+11$ Associative property

6) $y = -5\cdot (-x)+11$ $\frac{a}{-b} = -\frac{a}{b}$ / $(-1)\cdot a = -a$

7) $y = -5\cdot (-x+0)+11$ Modulative property

8) $y = -5\cdot [-x + 2 + (-2)]+11$ Existence of additive inverse

9) $y = -5 \cdot [(2-x)+(-2)]+11$ Associative and commutative properties

10) $y = (-5)\cdot (2-x) + (-5)\cdot (-2) +11$ Distributive property

11) $y = (-5)\cdot (2-x) +21$ $(-a)\cdot (-b) = a\cdot b$

12) $y = (-5)\cdot t +21$ By 1)

13) $y = -5\cdot t +21$ $(-a)\cdot b = -a \cdot b$ /Result

14) $t+x = (2-x)+x$ Compatibility with addition

15) $t +(-t) +x = (2-x)+x +(-t)$ Compatibility with addition

16) $[t+(-t)]+x= 2 + [x+(-x)]+(-t)$ Associative property

17) $0+x = (2 + 0) +(-t)$ Associative property

18) $x = 2-t$ Associative and commutative properties/Definition of subtraction/Result

In consequence, the right answer is $x = 2-t$ and $y = -5\cdot t +21$ .

5 0

2 years ago

Describe possible dimensions of a pyramid with a volume of 30 cubic centimeters.

Contact [7]

Answer:

15*3*2

15*1*6

45*2*1

10*3*3

6*5*3

Step-by-step explanation:

Volume=Lenth *Width*Height divieded by 3

4 0

3 years ago

Read 2 more answers

Pls help dis is due tomorrow n I have a science project also due so pls help me

pantera1 [17]

List A
4+4y=8y
4 (y-1)= 4
4y+1=5y

List B
4y-4=y
4 (y+1)=5y
1+4y=5y

5 0

2 years ago