Answer:
3C + 5 T = 550
C+T= 122
PUT IN 1 T= 122-C
3C + 5 (122-C)=550
3C -5C + 610=550
-2C= 550 - 610= -30
C= 15
T= 122-15 = 107
Step-by-step explanation:
Answer:
Slope (m) = 
Step-by-step explanation:
Use the following equation:
Slope 
Let:

Plug in the corresponding numbers to the corresponding variables:

Simplify. Divide common factors from both the numerator and denominator:

is your answer.
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He made a mistake on step 2, because he already flipped the fraction 5/8 to 8/5, then hi flipped it back to 5/8, hope this helps.
Answer:
195
Step-by-step explanation:
Of means multiply and is means equals
40% * number = 78
Change to decimal form
.40 * number = 78
divide each side by .40
.40 number/ .40 = 78/ .40
number =195
Answer:
The product is <u>1.4</u>
Step-by-step explanation:
Every time you multiply 0.2 by a number you will add 0.2 to the last number.
0.2 x 1 = 0.2
0.2 x 2 = 0.4
0.2 x 3 = 0.6
0.2 x 4 = 0.8
0.2 x 5 = 1.0
0.2 x 6 = 1.2
0.2 x 7 = 1.4
Hope this helps :)
sorry if im wrong