Answer:
depends on whether you meant (1/2)/4 or 1/ (2/4)
Step-by-step explanation:
1/2 x
---------- = -------------
4 28
Using cross products
1/2* 28 = 4x
14 = 4x
Divide by 4
14/4 = 4x/4
7/2 =x
If you meant
1 x
---------- = -------------
2/4 28
1 * 28 = 2/4 x
28 = 1/2 x
Multiply each side by 2
28*2 = 1/2x*2
56 =x
Answer:
Yes, Amanda has enough materials to make the concrete mix.
Step-by-step explanation:
Total units = 1+3+5
= 9
9 units = 630kg
1 unit = 630kg ÷ 9
= 70kg (Less than 80kg of cement, more than enough)
3 units = 3 × 70kg
= 210kg (Less than 215kg of sand, more than enough sand)
5 units = 5 × 70kg
= 350kg (Less than 370kg of gravel, more than enough gravel)
1+3+3+4+6+9+9 is 35
7 numbers so divide by 7
35/7 = 5
Mean is 5
Answer:
If Angle 1 is 110,
then the second angle to complete the straight angle (180 degrees) is...
180 - 110 = 70
Angle 2 = 110 (same as Angle 1, plus it's obtuse)
Angle 3 = 70 (it's acute)
Angle 4 = 70 (same as Angle3, plus it's acute)
4¹ = 4
4² = 16
4³ = 64
4⁴ = 256
(4⁵ = 1,024 too big)
