3 years ago

Solve for the variable.* -a + 3a =10 A. {-9} B. {5} C. {-11} D. {2}

Mathematics

2 answers:

inna [77]3 years ago

5 0

Answer:

Step-by-step explanation:

-a+3a= 10

2a=10

a=10/2

a=5

murzikaleks [220]3 years ago

5 0

I got b so it’s 5 good luck

You might be interested in

Brayden, Howard, and Vincent are on the football team. During a game, Brayden gains 1 less than 5 times the average number of ya

Gnoma [55]

Answer: If two pair is parallel then it has no solution.

Step-by-step explanation:

Since we have given that

Let the number of gained yards by each player be y

For the case of Brayden:

Equation will be

$y=5x-1\\\\y-5x=-1$

For the case of Howard :

Equation will be

$y=5x+1\\\\y-5x=1$

For the case of Vincent :

$y=4x+5\\\\y-4x=5$

Since First two equations are parallel so it has no solution.

Reason:

$y-5x=1\\\\y-5x=-1\\\\\frac{a_1}{a_2}=\frac{b_1}{b_2}=\frac{c_1}{c_2}\\\\\frac{1}{1}=\frac{5}{5}\neq \frac{1}{-1}$

Hence, if two pair is parallel then it has no solution.

8 0

3 years ago

Read 2 more answers

PLEASE HELP MIDDLE SCHOOL MATH

snow_tiger [21]

Answer:

x>=5

Step-by-step explanation:

If x is less than five, then there will be a negative in the square root, which will yield x an imaginary number.

3 0

3 years ago

Find the next two terms: <br><br>1, 11, 111, 1111....

Juli2301 [7.4K]

Answer:

1111, 11111

Step-by-step explanation:

5 0

3 years ago

Each month, Ellie spends 4 hours in tap class at her dance studio. If each month she spends 20% of her class time in tap

marysya [2.9K]

Answer:

4 / 20% = 20 hours total

8 0

3 years ago

Read 2 more answers

The gcf of 135 225 270

rodikova [14]

The greatest common factor of 135 225 and 270 is 135/225 = 3/5

hope you found this helpful ;)

5 0

3 years ago