Answer:
answer is -14
Step-by-step explanation:
2+8x
2+8(-2)
2-16
-14
Answer:
x = 0
y = 1
Step-by-step explanation:
y = 4x + 1 -------eqn 1
y = x + 1 -------eqn 2
Looking for x, let's use eqn 1
y = 4x + 1
4x = y - 1
Divide both sides by 4, to get x
4x/4 = (y - 1) / 4
x = (y - 1) / 4
Substitute the value of x into eqn 2
y = x + 1
y = (y - 1) / 4 + 1
LCM = 4
y =( y - 1 + 4)/4
y =( y + 3) / 4
Cross multiply
y * 4 = y + 3
4y = y + 3
4y - y = 3
3y = 3
Divide both sides by 3, to get y
3y / 3 = 3/3
y = 1
Substitute y = 1 , into eqn 1
y = 4x + 1
1 = 4x + 1
1 -1 = 4x
0 = 4x
Divide both sides by 4, to get x
0/4 = 4x/4
0 = x
x = 0
Hint, let's check if the values are correct
Let's pick eqn 2
y = x + 1
y = 1
x = 0
1 = 0 + 1
1 = 1
Correct
Let's try the eqn 1
y = 4x + 1
1 = 4(0) + 1
1 = 0 + 1
1 = 1
Correct too
Answer:
24
Step-by-step explanation:
24 times 50 equals 1200. 1200 plus 1800 equals 3000
Answer:
A has 263 calories
B has 257 calories
Step-by-step explanation:
system of equations:
a + 2b = 777
2a + b = 783
I multiplied the first equation by -2 to eliminate the 'a' terms
-2a - 4b = -1554
+ <u> 2a + b = 783</u>
-3b = -771
b = 257
solve for 'a'
a + 2(257) = 777
a + 514 = 777
a = 263
Answer:
12 centimeters
Step-by-step explanation:
The triangle is half of an equilateral one. So the hypotenuse is double the minor leg
12 centimetres
