All categories

3 years ago

-9a + 139 = -1a + 59 what is a?

Mathematics

1 answer:

beks73 [17]3 years ago

3 0

You might be interested in

Question 2(Multiple Choice Worth 1 points) (06.01) Solve 2x + 5y = −13 3x − 4y = −8 (4, 1) (−4, 1) (4, −1) (−4, −1)

dlinn [17]

ANSWER

The solution is
$(-4,-1)$

EXPLANATION

The given equations are:

$2x + 5y = - 13...(1)$

and

$3x - 4y = - 8...(2)$

We multiply equation 1 by 3 to get,

$6x + 15y = - 39...(3)$

We multiply equation 2 also by 2 to get,

$6x - 8y = - 16...(4)$

We subtract equation 4 from equation 3 to get,

$23y = - 23$
This implies that,

$y = - 1$

We put this value of y into any of the equations say equation 2

$3x - 4( - 1) = - 8$
Simplify

$3x + 4 = - 8$
Group like terms
$3x = - 8 - 4$
Simplify,

$3x = - 12$

Divide both sides by 3 to get,

$x = - 4$

Therefore the solution is
$(-4,-1)$

The correct answer is option D.

3 0

4 years ago

41/17 rounded to the nearest hendreth

Andrews [41]

Answer:

2.47

Step-by-step explanation:

convert it to a decimal = 2.47058823....

then round that to a nearest hundredth = 2.47

3 0

3 years ago

Read 2 more answers

Round 0.05 to the nearest whole

Verdich [7]

0.05 rounded to the nearest whole number is 0.
Hope this helps~

5 0

3 years ago

What is 9/12a = 1 ? Also what is 6/5b = 1 ? And Finaly what is 12c = 1 ?

ivolga24 [154]

Step-by-step explanation:

hope I understand your question

a = 9/12

b = 6/5

c = 1/12

please simplify the fractions by yourself

4 0

3 years ago

Select the correct answer from each drop down menu. The GCF of the numbers in the expression (32+16) is( ) The numbers left insi

lawyer [7]

Answer:

Eu não entendo inglês!!

8 0

3 years ago