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Yuri [45]
3 years ago
6

Write a two column proof. Given: 7y=8x-14 ; y=6 Prove: x=7

Mathematics
2 answers:
m_a_m_a [10]3 years ago
8 0
7y = 8x - 14

7y= 7(6) Reason : Given

7y = 42

8x -14 = 42 Reason: Because 8x - 14 equals to 7y


8x = 42 + 14 Reason : Because we flip 14 on to the other side of the equation thus it becomes opposute of what it was.

8x = 56

× = 7

Proven
ryzh [129]3 years ago
6 0

Given - 7y=8x-14 : y=6

Substitution Property - 7(6)=8x-14

Distributive Property - 8x-14=42

Addition Property - 8x=56

Division Property - x=7

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Thematics
Sholpan [36]

Answer:

x  =  4 your welcome.

8 0
4 years ago
Check all of the ordered pairs that satisfy the equation below.
Georgia [21]
A. 21*(2/3) = 14 -----> not 3/2 (X
B. 7*(2/3) = 14/3 ----> not 14 (X
C. 21*(2/3) = 14 -----> equal 14 (O
D. 28*(2/3) = 56/4 -> not 42 (X
E. 42*(2/3) = 28 ----> equal 28 (O
F. 14*(2/3) = 28/3 --> not 21 (X

so the answer is C and E
4 0
3 years ago
While on vacation, your family traveled 2040 miles in 6 days. Your average speed was 340 miles
Leviafan [203]

Answer:

a. independent = number of days

dependent = number of miles

b. f(x)=340x

x = number of days

f(x) = number of miles

c. f(x)=850

850 miles

Step-by-step explanation:

a. the number of miles depends on number of days because more days equals more miles traveled.

b. Idk u need y or f(x) but just switch to one u need.

c. 340 × 2.5 = 850

Hope this helps!

4 0
3 years ago
Please help!!<br> Type the correct answer in each box. Use numerals instead of words.
VikaD [51]
A = 3
b = 6
c = 5

Hope this helps
5 0
3 years ago
No explanation needed, just correct answer please.
RoseWind [281]

Answer:

the red one

Step-by-step explanation:

7 0
3 years ago
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