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GalinKa [24]
4 years ago
13

A wise man once said, "500 reduced by twice my age is 340." What is his age?

Mathematics
1 answer:
saw5 [17]4 years ago
7 0

Answer:

500 - 2a = 340

500 - 2a - 500 = 340 - 500

-2a = -160

-2a/-2 = -160/-2

a = 80

Step-by-step explanation:

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19 6/7 divided by 4 1/8
anygoal [31]
<span>4</span>\frac{188}{231}
Hope this helps!
7 0
3 years ago
Emerson is making a punch that contains 60% grape juice and the rest lemon-lime soda. The punch has 2 liters of lemon-lime soda.
Kisachek [45]

Question

<em>Emerson is making a punch that contains 60% grape juice and the rest lemon-lime soda. The punch has 2 liters of lemon-lime soda. Part A: Write an equation using one variable that can be used to find the total number of liters of grape juice and lemon-lime soda in the punch. Define the variable used in the equation and solve the equation. Hint: 0.6x represents the number of liters of grape juice in the punch. (5 points) Part B: How many liters of grape juice are present in the punch? Show your work. (5 points)</em>

Answer:


<u>5l = 0.4l(1) + 0.6l(2)</u>


<h2>Step-By-Step-Explenation </h2>

5l = Total litres.

0.4l = 0.4 represents % of lemon-lime soda in litres.

0.6l = 0.6 represents % of grape juice in litres.

For grape juice, make L(1) = 0 and find for L(2), you will get 3L

For lemon-lime soda, make L(2) = 0 and find for L(1), you will get 2L

3L + 2L = 5L.

60% + 40% = 100%

I think this is right but i really tried.!

Hope this helps!




7 0
3 years ago
Read 2 more answers
Gus has skydived 4 more times than Nico. Emma has skydived twice as many times as Nico. If Emma has skydived 16 times, how many
Oliga [24]
32 times bc emma skydived 16 times and it says sue sky dived 2 × Nico so you would divide 16 ÷ 2 and get 8 then it says gus has skydived 4 times more than nico so you do 8 × 4 and get 32 as your answer
6 0
3 years ago
The sum of the masses of two heavyweight boxers is 190kg. ⅘ the heavier boxer is 10kg less than the mass of lighter boxer. Find
ratelena [41]

Answer:

<em>Their masses are 100 kg and 90 kg</em>

Step-by-step explanation:

<u>Equations</u>

We'll solve the problem by setting only one variable. Let's call:

x = weight of the heavier boxer

Since the sum of the masses of both boxers is 190 Kg:

190 - x = mass of the lighter boxer.

It's given that \frac{4}{5} of the mass of the heavier boxer is 10 kg less than the mass of the other, thus:

\displaystyle \frac{4}{5}x=190-x-10

Operating:

\displaystyle \frac{4}{5}x=180-x

Multiplying by 5:

\displaystyle 4x=5(180-x)

\displaystyle 4x=5*180-5x

Simplifying:

\displaystyle 9x=900

x=\frac{900}{9}=100

The heavier boxer's mass is 100 kg. The lighter boxer has a mass of 190-100 = 90 kg.

Their masses are 100 kg and 90 kg

5 0
3 years ago
Solve the equation 10r – 2 = 28 for r.
gulaghasi [49]

Answer:

r=3

Step-by-step explanation:

First we add 2 to both sides.

That leaves us with 10r=30

Then we can divide both sides by 10

r=3

7 0
3 years ago
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