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Digiron [165]
3 years ago
10

Is the given number a solution of the equation? Which value of c is a solution to the equation c = 2c – 4?

Mathematics
1 answer:
serg [7]3 years ago
5 0
C - 2c = 2c - 2c - 4
c - 2c = -4
-c = -4
c = 4
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Please help! thank you guys!!! :)
Wittaler [7]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
Calcular la edades actuales de una madre y sus dos hijos sabiendo que hace 14 años la dad de la madre era 5
rodikova [14]

The present age of mother and her daughter respectively are; 40 and 10 years respectively.

<h3>How to Solve Algebra Word Problems?</h3>

Let x and y be the present age of mother and her daughter respectively.

Therefore;

x + y = 50

x = 50 − y     .....(1)

After 20 years, mother's age will be twice her daughter's age at the time. Thus;

x + 20 = 2(y + 20)

x − 2y = 20     .....(2)

Plugging eq 1 into eq 2 gives us;

50 − y − 2y = 20

3y = 30

y = 10

Thus;

x = 50 − 10

x = 40

Thus, the present age of mother and her daughter is 40 and 10 years respectively.

Translation of the question into English is;

The sum of the present ages of mother and her daughter is 50 years. After 20 years, mother's age will be twice her daughter's age at the time. Find their present ages.

Read more about Algebra Word Problems at; brainly.com/question/21405634

#SPJ1

6 0
2 years ago
Please help and show work
mylen [45]
7.B
\sqrt{\pi } = 1.772
\pi = 3.142
2 \times \pi = 6.283
{\pi}^{2} = 9.869

9.A
3/2=1.5

8. F
2times pi =6.283
square root of 50= 7.071
pi squared/2= 3.289

10.H
1/7= .143
which means it can't be f or g.

8 0
3 years ago
Ill mark brainlist plss help
Lynna [10]

Answer:

it will be 14.10 because 2.35x 6 equals 14.10$

Step-by-step explanation:

7 0
3 years ago
Given: Base ∠BAC and ∠ACB are congruent. Prove: ΔABC is an isosceles triangle. When completed (fill in the blanks), the followin
astra-53 [7]
So what is the question that needs to be answered??
6 0
3 years ago
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