Answer:
x = -8
Step-by-step explanation:
Given: 5(x+4)+52=-4x
Distributive Property: 5x+20+52=-4x
Combine like terms: 5x+72=-4x
Subtract 5x on both sides: 72=-9x
Divide both sides by -9: -8=x
Flip the equation around: x=-8
Therefore, x=-8
Estimation for addition: 86 rounds up to 90 and 17 rounds up to 20 so:
90 + 20 = 110
Estimation for subtraction is the same thing but with subtraction
90 - 20 = 70
Now for the exact answers:
86 + 17 = 103
86 - 17 = 69
Your answers are 110, 70, 103, and 69.
Answer:
10.45
Step-by-step explanation:
To solve it without the calculator:
First, you multiply 4.75 times 0.2 (0.95)
Then you multiply 4.75 times 2 (9.5)
Then you add the 2 numbers to get the answer.
0.95 + 9.5 = 10.45
With the calculator, just put in the 2 numbers and click enter!
Answer:
{Rounded to the nearest Hundredths place}
1) Mercury= 170.55
2) Venus= 277.86
3) Earth= 389.62
4) Mars= 401.29
Explanation:
Mercury: 3.3022 x 10^19= 170.549894825 which rounds to 170.55
Earth: 5.9722 x 10^24= 389.618945662 which rounds to 389.62
Venus: 4.8675 x 10^21= 277.855972801 which rounds to 277.86
Mars: 6.4185 x 10^23= 401.287714067 which rounds to 401.29
•So smallest to largest would be• 170.55, 277.86, 389.62, and 401.29
[I hope this helps][Sorry if it doesn’t make sense]
