1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kruka [31]
3 years ago
14

HELP ON 3 AND 4 plssss!!! ill give the brainliest to the first one to answer IF CORRECT CUZ IMMA CHECK IT

Mathematics
1 answer:
EastWind [94]3 years ago
5 0

Answer:

<u><em>#3:</em></u>

<em>8x+56=80</em>

<em>2x=6</em>

<em>x=3</em>

<u><em>#4</em></u>

<em>Fabian can make 3 batches of soup</em>

Step-by-step explanation:

<u>Equations</u>

We'll use some algebra rules to set, simplify, and solve equations. LEt's start with question #3

We have the equation

\displaystyle \frac{1}{4}(8x+56)=20

From that expression, we'll try to find out which other(s) are equivalent. If we operate the fraction by the parentheses, we have

2x+14=20

This expression eliminates the second alternative. If we had multiplied all the equation by 4 instead of performing the product:

\displaystyle 4*\frac{1}{4}(8x+56)=20*4

8x+56=80

This is equivalent to the first option. It's correct and should be checked out. Taking from this equation

2x+14=20

If we subtract 2x, we have

14=20-2x

This is different from the first option in the second row. It should not be checked out

Solving for x

2x=6

This is equivalent to the last option. Finally,  

x=3

which is equal to the 3rd option, first row. To summarize, all the equations equivalent to the first given are

<em>8x+56=80</em>

<em>2x=6</em>

<em>x=3</em>

<u>Question #4</u>

From the 10 pounds of tomatoes Fabian harvested, he sets aside 2.8 pounds to make spaguetti sauce. This leaves him with (10 - 2.8) pounds of tomatoes to make x batches of soup, each one of which needs 2 2/5 pounds of tomatoes. The equation to solve is

\displaystyle \frac{10-2.8}{x}=2 \frac{2}{5}  =\frac{12}{5}

Solving for x

\displaystyle \frac{10-2.8}{\frac{12}{5}}=x=\frac{5\times 7.2}{12}=3

Fabian can make 3 batches of soup

You might be interested in
What is 7 times the sum of a squared and b minus 4 times the sum of a squared and b
spayn [35]
<span><span>The sum of a squared and b is given by
a^2+b

</span>7 times the sum of a squared and b is given by
</span><span>7(a^2+b)
while 4 times the sum of a squared and b is given by
</span>4(a^2+b)

Therefore, <span>7 times the sum of a squared and b minus 4 times the sum of a squared and b is given by

7(a^2+b)-4(a^2+b)=3(a^2+b)</span>
7 0
2 years ago
The diagonals in a kite __________.
Vsevolod [243]

Answer:

B

Step-by-step explanation:

Diagonals in a kite are perpendicular. I just learned this. Mark Brainliest if you get it right!!!

8 0
2 years ago
Read 2 more answers
$34.98 with 8.2 tax
Paraphin [41]

Answer:

$37.85

Step-by-step explanation:

Here the price is $34.98 and there's an 8.2% tax on that.  To obtain the after-tax amount due, multiply $34.98 by (1 + 0.082), or 1.082, obtaining:

1.082($34.98) = $37.85 (rounded to the nearest cent)

7 0
3 years ago
On Saturday, you spend $33, give $15 to a friend, and receive $20 for mowing your neighbor’s lawn. You have $21 left. Use two me
tia_tia [17]

21+20-15-33=x

x=-7

Hope this helped☺☺

8 0
3 years ago
Identify the smallest conposite number that you can create by multiplying two different composite numbers
Lelu [443]

Answer: 24

Step-by-step explanation:

The smallest composite numbers are 4, followed by 6 so I would think you you’d just multiply them.

6 0
2 years ago
Other questions:
  • Which fraction expresses 36/80 in lowest terms.<br><br> A- 9/20<br> B-18/40<br> C-4/5<br> D- 18/20
    11·2 answers
  • Describe the correct error -1/4 divided by 3/2=-4/1 multiplied by 3/2= -12/2=-6
    11·1 answer
  • Matthew is 5 years older than twice the age of his sister. if matthew 13, how old is sister
    5·2 answers
  • Nathan opens a new savings account and makes an initial deposit of $400.
    15·1 answer
  • Solve. −35x+15&gt;720 Drag and drop a number or symbol into each box to show the solution.
    15·1 answer
  • What is the approximate length of the hypotenuse of a right triangle with vertices (-6, 2),
    9·1 answer
  • A golf ball of diameter 1.68 inches rolls a distance of 4m in a straight line. How many times does the ball. completely? (1 inch
    5·1 answer
  • Sarah's family of 4 went camping for 1 week. they each year 3 paper plates a day. how many paper plates did the family use up we
    11·1 answer
  • What is the result of the number 25 + 100 what is the answer?
    7·1 answer
  • Piensa rápido<br>2 * 3 = 11<br>5 * 2 = 17<br>5 * 4 = 29<br>6 + 5 = 41<br>6 + 8 = ?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!