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3 years ago

While working out, Susie does 25 sit-ups for every 12 push-ups. If she does 60 push-ups, how many sit-ups will she do?

Mathematics

1 answer:

Sholpan [36]3 years ago

4 0

Answer:

125 situps

Step-by-step explanation:

We can use a ratio to solve

25 situp x situps

--------------- = --------------

12 pushup 60 pushups

Using cross products

25 * 60 = 12x

Divide each side by 12

25*60/12 = 12x/12

125 = x

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Find the inverse of the following functions f(x)=6-3x g(x)=x+2

astraxan [27]

      f(x) = -3x + 6
    y = -3x + 6
      x = -3y + 6
   x - 6 = -3y
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⁻¹/₃x + 2 = y
⁻¹/₃x + 2 = f⁻¹(x)

g(x) = x + 2
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   x = y + 2
x - 2 = y
x - 2 = g⁻¹(x)

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Determine if sequence is arithmetic or geometric. Then find the next term in the sequence. Select all that apply. 2, 10, 50, 250

denis-greek [22]

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Below are two parallel lines with a third line intersecting them. What is x

sleet_krkn [62]

Answer:

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Step-by-step explanation:

When an angle is shown, the one opposite of it is equal to the forst equation. The bottom angles are equal to 360ñ so if you take 46x2=92. Subtract 92 by 360 to get 268. Divide it by 2 to get one of the bigger angles, which is 134 degrees. And as for the top, one angle on the bottom is equal to the same spot on the top. so, 136=x

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Find all solutions to the equation

tresset_1 [31]

Answer:

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Step-by-step explanation:

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3 years ago

There are 205 coins in a jar all of which are either nickles or quarters . The vaule of the coin in the jar is $31.85. if both o

Gnesinka [82]

Answer: There are 97 nickels and 108 quarters.

Step-by-step explanation:

Let x = Number of nickels, y = Number of quarters.

As per given,

x+y = 205 ...(i)

0.05x+0.25y = 31.85 ... (ii) [1 nickel = $0.05, 1 quarter = $ 0.25]

Multiply (ii) by 20, we get

x+5y=637 ...(iii)

Eliminate (i) from (iii)

4y = 432

⇒ y = 108 [Divide both sides by 4]

Put value of y in (i), we get

$108+x=205\Rightarrow\ x= 97$

Hence, there are 97 nickels and 108 quarters.

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3 years ago