The difference of two numbers, a and b, is 21. The difference of 5 times a and two times b is 18. What are the values of a and b
? A. 4, 1 B. -19, 40 C. 20, 1 D. 30, 9 E. -8, -29
I WILL GIVE THE BRAINLEIST AND A LIKE TO THE RIGHT ANSWER
1 answer:
Answer:
I believe the answer you are looking for is E
Step-by-step explanation:
a - b = 21
5a - 2b = 18
2a + 2b = -42
<u>5a - 2b = 18 </u>
5a - 2a = 18 - 42
3a = -24
a = -8
a - b = 21
-8 - b = 21
-b = 29
b = -29
You might be interested in
Answer:
I think the answer is a=-1/21
First, you must get the r by itself.
![\frac{r}{3}](https://tex.z-dn.net/?f=%20%5Cfrac%7Br%7D%7B3%7D%20)
=15
Now, multiply both sides by 3 to get the r completely by itself and get the answer.
r=45.
Answer:
Step-by-step explanation: the triangle is negative 6, plus 18 half in the middle.
Answer:
1584 in³
Step-by-step explanation:
(14 x 6 x 16) + (10 x 6 x 4) = 1584
Answer:
1 x=4
y=-1
2 has no solution
3 x=5y -/8 + 27/4
y= 54-8x/5
4x=y=0
5 x=2 y=1
Step-by-step explanation: