Answer:
C=13
Step-by-step explanation:
Ok, so those to angles are going to equal 90*.
First, you wan to setup your equation,
<em>(2c-4) + (5c+3) = 90</em>
now you want to add the angles
<em>7c -1 = 90</em>
isolate the variable .
Add 1 to both sides
<em>7c=91</em>
Now divide 7 from both sides
<em>c=13.</em>
To check our work we will plug in for C.
<em>2(13)-4 + 5(13)+3=90</em>
<em>26 - 4 + 65 + 3=90</em>
<em>90=90</em>
Because whole numbers are bigger than fractions
15 + 20p = c ( this is the answer )
fifteen plus twenty times the number of parts equals the total cost.
Answer:
I must say i don't but i feel like it would be way easier then how my home school is doing it
Denise is the fastest runner. 40 divided by 6 is 6.666 repeating 30 divided by 5 is 6 and 20 divided by 4 is 5 therefore denise is fastest
