I did this but im not very good at it :( but i think the answer is either A or D sorry if im wrong :(
Density = mass / volume
Density = 8,200 grams / (4*4*4)
Density = 8,200 grams / 64 cubic inches
Density =
<span>
<span>
<span>
128.125
</span>
</span>
</span>
grams / cubic inch
Answer:
1) James brother is 10-x years old
2) James was 3 years ago x-3 years old
3) James brother was 3 years ago 7-x years old
4) 3(x-3)=7-x
5) James is 4 years old, his brother is 6 years old
Step-by-step explanation:
3) 10 - x - 3 = 7 - x
5) 3* James age 3 years ago = James brothers age 3 years ago
<=> 3*(x-3) = 7-x
<=> 3x - 9 = 7 - x
<=> 4x = 16
<=> x = 4
The complement of 'x' degrees is (90 - x) degrees.
The supplement of 'x' degrees is (180 - x) degrees.
