3 years ago

Someone help me please :)

Mathematics

1 answer:

igor_vitrenko [27]3 years ago

3 0

Answer:

<h2><u><em>mark me as brilliant ~_~</em></u></h2>

Step-by-step explanation:

You might be interested in

Which is bigger 8/10 or 79/100

serg [7]

You can say 8/10 = 80/100 ⇒ 80/100 is bigger than 79/100 :)))

5 0

3 years ago

Read 2 more answers

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

I don’t get number 7

VikaD [51]

C because 43 divided by 50 is 0.86

5 0

3 years ago

Read 2 more answers

In ΔBCD, the measure of ∠D=90°, the measure of ∠B=51°, and CD = 8.8 feet. Find the length of DB to the nearest tenth of a foot

EleoNora [17]

Answer:

7.1 feet

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Which is the most efficient way to solve this equation? x+4=17

Ostrovityanka [42]

Answer:

x=13

Step-by-step explanation:

x+4 = 17

Subtract 4 from each side

x+4-4=17-4

x = 13

7 0

3 years ago