Help me Please!!!Help me Please!!!!!!!!!!!

Answers

Answer 1

Answer: Im assuming that the commas are decimal points
8.4( y - 17.9) = 4.2
distribute 8.4 inside the parenthesis
8.4y - 150.36
Take 150.36 to the other side
8.4y = 154.56
divide by 8.4 on both sides to isolate y

$(8.4y)/(8.4)$ = $(154.56)/(8.4)$
8.4 and 8.4 cancels out
y = 18.4

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Which sentence explains the correct first step in the solution of this equation? 4(x−3)=9

Answers

Answer:

Distribute this, : 4(x-3)=9 to get 4x-12=9

4 times what equals 9. Well let's do this backwards. 9/4 equals 2.25 or 2 1/4 and 2 1/4 + 3 = 5 1/4. x=5 1/4. 4(5 1/4 - 3) = 9. Hoped I helped!

Figure ABCD has vertices A(−3, 2), B(2, 2), C(2, −4), and D(−3, −2). What is the area of figure ABCD?

Answers

Answer:

The area of the figure ABCD is $25\ units^(2)$

Step-by-step explanation:

we have

$A(-3, 2), B(2, 2), C(2, -4), D(-3, -2)$

using a graphing tool

Plot the figure

see the attached figure

The figure is a trapezoid

The area of the trapezoid is equal to

$A=(1)/(2)(AD+BC)AB$

Find the distance between the points in the graph

we have

$AD=4\ units$

$BC=6\ units$

$AB=5\ units$

substitute

$A=(1)/(2)(4+6)5=25\ units^(2)$

Answer:

I believe 25 square units is the right answer.

Three-quarters of the 24 pies at the bakery or pumpkin pie how many pies are pumpkin

Answers

3 quarters of 24 is 8
So 8 pies

On the lines below write a word problem that involves division and would have a correct answer of 4/7

Answers

Jim was driving down a country road, late in the afternoon. He noticed that the farm he was passing had a peculiar way of separating it's sheep, male on one side and female on the other. There were 70 sheep in all, and 30 males. What percent of the sheep population were female?

I am very weak in this help me please. There are 1800 gym members in total.3/4 are aged 25 to59 years, 1/5 are over 60 years and remainder are under 25 years. How many members are under 25 years?

Answers

Steps to solve:

1. 3/4+1/5
Change both denominator to the same- 4*5=20
So far its: ?/20 + ?/20

2. For the first fraction (3/4) we do 3*5=15
Because when we found the denominators we multiplied each denominator by each other. For the second one we do pretty much the same. We do 1*4=4.

3. The final equation is 15/20 + 4/20.
Now add both numerators, which is 19. You leave the denominator as it is. So the final fraction is 19/20.

4. Next to get a full fraction from 19/20 you need 1/20 to get 20/20=1.
On the calculator you type in: 1/20*1800
OR... 1800/20
OR... (18/2)100

So the final answer is 90. 1800/20=90
= 90 members under the age of 25.

To solve this, we add , 3/4 + 1/5

To add fractions we different denominators we have to find a common multiple.. 4 * 5 = 20 and 5 * 4 = 20

We multiply everything by 5 (for 3/4), to get 15/20
We multiply everything by 4 (for 1/5), to get 4/20

= 15/20 + 4/20 (add the numerators)
= 19/20

If 19/20 people are 25 to 60+,
that means 1/20 of people are under 25

We apply this to 1800 gym members:

1800 / 20 <- get's us 1/20 of 1800
= 90

There are 90 members under 25

In △ABC, m∠A=39 △ A B C , m ∠ A = 39 °, a=11 a = 11 , and b=13 b = 13 . Find c c to the nearest tenth.