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2 years ago

(10x-11) + (3x-2) + (3x+1) = 180

Mathematics

2 answers:

Sauron [17]2 years ago

8 0

Answer:

right across my mom is the best I can get in a lot and I don't think so

Step-by-step explanation:

carbon fiber and fiber is not a problem in the morning and it doesn't work for me because I am sorry to get the best results in the process but it will get worse when I have a good idea to make a difference and 87inches will be there for me and I have no problems in my body step and the symptoms of my illness will have 7 or so severe symptoms that may 6PM up with my symptoms of depression and anxiety and depression in my heart as a child in a very much and very much

svetlana [45]2 years ago

6 0

Answer:

Step-by-step explanation:

10x-11+3x-2+3x+1=180

Add all the variables together:

10x+3x+3x = 16x

Add all the numbers together:

-11-2+1 = -12

Add the variables and numbers:

16x-12

Subtract:

16x = 180-12

16x=162

Calculate:

x=10.125

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Candy and Tim share a paper route. It takes Candy 85 min to deliver all the papers, and it takes Tim 65 min. How long does it ta

RSB [31]

Answer:

The time required to finish the work by both candy and Tim working together = 36.83 minute

Step-by-step explanation:

Time taken by the candy to finish the work $T_{1}$ = 85 min

Time taken by the Tim to finish the work $T_{2}$ = 65 min

Thus the time taken by both to finish the work = $\frac{T_1 \times\ T_2}{T_1 + T_2}$

Put the values of $T_{1}$ and $T_{2}$ we get ,

$T_{}$ = $\frac{85 \times\ 65}{85 + 65}$

$T_{}$ = $\frac{221}{6}$

$T_{}$ = 36.83 minute

Thus the time required to finish the work by both candy and Tim working together = 36.83 minute

3 0

3 years ago

phil ate three less than twice as many pancakes as sara. together they combined to eat 15 pancakes. How many pancakes did each e

Levart [38]

Answer:

Let x represents the Sara eat pancake and y represents the Phil eat the pancake.

As per the statement:

Phil ate three less than twice as many pancakes as Sara.

"Twice as many pancake as Sara" means 2x

"three less than twice as many pancakes as Sara" means 2x -3

⇒ $y = 2x-3$ .....[1]

It is also given that together they combined to eat 15 pancakes.

⇒ $x+y =15$ .....[2]

Substitute equation [1] into [2] we get;

$x+2x-3 = 15$

Combine like terms;

3x-3 =15

Add 3 to both sides we get;

3x = 18

Divide both sides by 3 we get;

x = 6

Substitute the value of x in [1] we get;

y = 2(6)-3 = 12-3 =9

y = 9

Therefore, the pancakes did each eat are;

Sara eat pancake = 6 and Phil eat pancake = 9

8 0

3 years ago

Can you help me simplify this and explain it -----------------------------------------------------------------------------------

Archy [21]

A. Factor 28 + 7g 7(g <span>+ 4)

add
28 </span><span>+ 7g

= 7 (g </span>+ 4)

B. (12r + 15) – 65 Remove parentheses
12r+15-65

= 12r - 50

C. 24 – (8p – 12)

24 - (8p - 12) = -8p + 36

24 - (8p - 12) -(8p - 12) 8p + 12

= 24-8p+12

Simplify 24-8p+12

Group like terms
-8p+12+24

Add the numbers 12+24=36

Answer is -8p+36

7 0

3 years ago

A motor is 85.4 % efficient: that is, the output is 85.4 % of the input. What is the input if the motor delivers 10.75 hp. ( Rou

Ludmilka [50]

Answer:

12.6 hp

Step-by-step explanation:

Represent the input by n. 10.75 hp

Then 0.85n = 10.75 hp, and n (the input) is --------------- = 12.6 hp

0.85

5 0

3 years ago

Kim ran a mile in PE class. After resting for 1 hour her heart rate was 75 beats per minute. If her heart rate decreased by ⅖ ,

Andreas93 [3]

Answer:

125

Step-by-step explanation:

since you take away 2/5 of the original number to get 75, 75 is equal to 3/5's of the original. You then divide 75 by 3, get 25, then multiply 25 by 5 to find the answer which is 125.

6 0

2 years ago