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
Naddika [18.5K]
3 years ago
5

Need help with this math question.

Mathematics
2 answers:
Svet_ta [14]3 years ago
6 0
10a+35b=0; 21a-35b=217 ...associative property of addition
31a = 217 .............addition property of equality
a = 7 .....................division property of equality
2(7) +7b = 0 --------------substitution property of equality
14+7b = 0 -----------------mulplication property of equality
      7b = -14 --------------subtraction property of equality
        b = -2 ----------------simplify
aleksklad [387]3 years ago
6 0
Hey there,

1.) \boxed{associative \ property \ of \ addition}[/tex\\2.)[tex]\boxed{addition \ property \ of 
 equality}
And the rest would be. . . 

division property of equalitysubstitution property of equalitymultiplication property of equalitysubtraction property of equalitysimplify

You might be interested in
some children measured the lengths of their feet. The lengths are given in the line plot. What is the difference in length betwe
Rainbow [258]
The difference in length is 6/8 inches.
6 0
4 years ago
I need the answer I tried to do the work but my work is wrong so can you help me
DENIUS [597]

Answer:

$545

Step-by-step explanation:

Let the total cost per year be y.

He spent a flat amount of $125 per year.

Then he spend an additional $35 per months. There are 12 months in a year so that's a total of 35*12=$420.

Add up the cost

y = 125 + 420 = $545

7 0
3 years ago
Can someone help me find x of this triangle
uysha [10]

Answer:

x = 9

Step-by-step explanation:

Sum of a triangle is 180°.

6x + 1 + 6x - 14 + 9x + 4 = 180°

Arrange the like terms together and simply this equation.

6x + 6x + 9x + 1 + 4 - 14 = 180°

21x - 9 = 180°

Shifting '-9' to the other side of the equation gives you '+9'

21x = 180° + 9

21x = 189

Shifting 21 to the other side of the equation (to get x) makes it  ÷21 (multiply)

x = 189 ÷ 21

x = 9

3 0
3 years ago
All of the total number of spectators at a circus show 1/4 or men 2/5 of the remaining number of spectators are women there 132
kkurt [141]

Answer:

There are <u>198 children</u> at the circus show.

Step-by-step explanation:

Let the total number of spectators be 'x'.

Given:

Number of men = \frac{1}{4} of the total number

Number of women = \frac{2}{5} of the remaining number.

Also, number of women = 132

Number of men = \frac{1}{4}\ of\ x=\frac{x}{4}

Now, spectators remaining = Total number - Number of men

Spectators remaining = x-\frac{x}{4}=\frac{4x-x}{4}=\frac{3x}{4}

Now, number of women = \frac{2}{5}\times \frac{3x}{4}=\frac{6x}{20}

Now, as per question:

Number of women = 132. Therefore,

\frac{6x}{20}=132

6x=132\times 20

x=\frac{2640}{6}=440

Therefore, the total number of spectators = 440

Also, number of men = \frac{x}{4}=\frac{440}{4}=110

Now, total number of spectators is the sum of the number of men, women and children.

Let the number of children be 'c'.

Total number = Men + Women + Children

440=110+132+c\\440=242+c\\c=440-242=198

Therefore, there are 198 children at the circus show.

8 0
4 years ago
10 cans of mushrooms cost $27.80. The cost of each can is the same. What is the cost of
skelet666 [1.2K]

Answer:

This problem gives us the total amount of cans and it also gives us the total cost and asks us to find the cost of each can when every can costs the same amount.  To do this we need to $ to be on the top and the can on the bottom because we say price PER can.

\frac{total\ price}{total\ amount\ of\ cans}

\frac{\$27.80}{10\ cans}

\$2.78\ per\ can

Therefore, our final answer is that each can costs $2.78

<u><em>Hope this helps!  Let me know if you have any questions</em></u>

4 0
2 years ago
Other questions:
  • 8x^-9+(-3x^-3y-2)(5/x^6y-2)
    6·1 answer
  • PLEASE HELP ASAPPPPPPPP
    15·1 answer
  • When a higher confidence level is used to estimate a proportion and all other factors involved are held constant
    10·1 answer
  • 3 is what percent of 5?
    15·1 answer
  • Jonathan's antiques purchased an old wooden sled at an auction for $210. Jonathan wants to markup the sled 60 percent of the sel
    14·1 answer
  • Suppose the position of an object moving in a straight line is given by s (t )equals 4 t2+ 5 t+ 5. Find the instantaneous veloci
    11·1 answer
  • When you use induction to investigate a pattern and its rules, your educated guess about what comes next is called a
    13·1 answer
  • Would 3x(2y+7) -4w be two terms or three?
    15·1 answer
  • Find x when<br> -1/2<br> +<br> X<br> =<br> -21/4
    6·1 answer
  • Help me plsss thx if u do✨✨
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!