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Georgia [21]
3 years ago
12

10x-35+3ax=5ax-7a solve for "a" for which the equation is an identity.

Mathematics
2 answers:
Tresset [83]3 years ago
8 0
10x-35+3ax=5ax-7a \\\\ 3ax-5ax+7a = -10x+35 \\\\ -2ax+7a = -10x+35 \\\\ a(-2x+7)=-10x+35 \\\\ a= \frac{-10x+35}{-2x+7} \\\\ a = \frac{5(-2x+7)}{(-2x+7)} \\\\ a=5
ella [17]3 years ago
6 0
You can solve it by using PEMDAS

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Worksheet 1.3
Lena [83]

Answer:

<h2>50h miles</h2>

Step-by-step explanation:

For us to write a math expression for the problem, we will use the formula for calculating speed.

Speed is the change of distance of a body with respect to time.

Mathematically, Speed =  Distance/Time

Distance = Speed * Time

If  Lumpy drove for h hours at 50 mph, then Lumpy speed =  50mph and time = h hours.

Substituting the given parameters into the formula to get the distance;

Distance = 50mph * h hours

Distance = 50h miles

<em>Hence the math expression that modeled how far Lumpy drive is 50h miles</em>

4 0
4 years ago
Plz help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Harrizon [31]
You at the photos and what you see put it down and what you know put it down
8 0
3 years ago
Write a story to go with 3/4 times 1/2.
valina [46]

Answer:

2/3 = 0.666666667

<em><u>hopefully i helped :)</u></em>

<em><u></u></em>

8 0
3 years ago
Read 2 more answers
Can anyone help me with this math question
ANTONII [103]

The third is true

ok bye

lm'iranian

11years old

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Can you guys help me please ASAP
Cerrena [4.2K]
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