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laiz [17]
3 years ago
14

3- 8 + 4(3x + 3) +2y Thanks!!!

Mathematics
2 answers:
Ierofanga [76]3 years ago
8 0

Answer:

7+12x+2y

Step-by-step explanation:

3-8+(12x + 12)+2y=

-5+(12x +12)+2y=

7+12x+2y

icang [17]3 years ago
3 0

Answer:

Simplified, your answer should be 12x + 2y + 7

Step-by-step explanation:

Hope this helps! :)

Have a nice day! ♥

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A car drives for 1 hour 55 minutes with a constant speed of 36 km/h and then for another 1 hour 50 minutes with a constant speed
stich3 [128]
----------------------------------------
Convert hours to minutes
----------------------------------------
1 hour 55 mins = 60 + 55 = 115 mins
1 hour 50 mins = 60 + 50 = 110 mins

_____________________________________________________

----------------------------------------
Speed = 36/h
----------------------------------------
1 hour = 36 km

----------------------------------------
Rewrite 1 hour as 60 mins
----------------------------------------
60 mins = 36 km

----------------------------------------
Find 1 min
----------------------------------------
1 min = 36 ÷ 60
1 min = 0.6 km

----------------------------------------
Find 115 mins
----------------------------------------
1 min = 0.6 km
115 min = 0.6 x 115 
115 min = 69km

_____________________________________________________

----------------------------------------
Speed = 72km/h
----------------------------------------
1 hour = 72 km

----------------------------------------
Write 1 hour as 60 mins
----------------------------------------
60 mins = 72 km

----------------------------------------
Find 1 min
----------------------------------------
1 min = 72 ÷ 60 
1 min = 1.2 km

----------------------------------------
Find 110 min
----------------------------------------
1 min = 1.2 km
110 min = 1.2 x 110 
110 min = 132 km

_____________________________________________________

----------------------------------------
Total Distance traveled:
----------------------------------------
69km + 132km = 201km

----------------------------------------
Answer: 201 km
----------------------------------------

7 0
4 years ago
The weight of an object on moon is 1/6 of its weight on Earth. If an object weighs 1535 kg on Earth. How much would it weigh on
Over [174]

Answer:

255.8

Step-by-step explanation:

first

1/6*1535

=255.8

5 0
4 years ago
If the gradient of the line joining the points (-3,-7) and (4,p) is 3/5, find the value of P.
adelina 88 [10]

Given:

Two points (-3, -7) and (4, p).

To find the value of P if the gradient is 3/5:

The gradient in a linear equation is the same thing as the slope of the line.

So, the formula is,

\begin{gathered} m=\frac{y_2-y_1}{x_2-x_1} \\ \frac{3}{5}=\frac{p-(-7)}{4-(-3)} \\ \frac{3}{5}=\frac{p+7}{7}\Rightarrow3(7)=5(p+7) \\ 21=5p+35 \\ 5p=21-35 \\ 5p=-14 \\ p=-2.8 \end{gathered}

Hence, the value of p is -2.8.

4 0
1 year ago
What is an equation in slope-intercept form for the line that passes through the points (1, -3) and (3, 1)?
tensa zangetsu [6.8K]
First we need to find the slope: 

Slope formula=\frac{y2-y1}{x2-x1}

Plug in your given values from the coordinate 
Slope =\frac{1-(-3)}{3-1}

When we have 2 "-"'s together they turn into a + sign so we add. 
Slope =\frac{1+3=4}{3-1=2}
Slope =\frac{4}{2}

Simplify (in this case divide) the slope: 
Slope =2

 slope-intercept form is: 
y=mx+b 
Where m=slope
b=y-intercept

So far we have:
y=2x+b 

To find b all we have to do is pick any given coordinate and plug it in: 
I chose (3,1) 

so we plug that in the equation
1=6+b 
 
Now solve for b:
1=6+b
subtract 6 from both sides 
b=-5  

Final answer: 
y=2x-5 (D) 
8 0
4 years ago
Find the solutions to the equation below check all that apply
nydimaria [60]
Using the diamond, I get the factors 10/2 and 1/2. 2x^2+11x+5 factors to (2x+1)(x+5)=0
2x+1=0 2x=-1 x=-1/2
x+5=0 x=-5
Answer is D and E
5 0
3 years ago
Read 2 more answers
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