Answer:
Step-by-step explanation:
7x - 1 + 6x - 1 = 180
13x - 2 = 180
13x = 182
x = 14
7(14) - 1 = 98 - 1= 97
6(14) - 1 = 84 - 1 = 83
Down 3 over 1
aka -3 is the slope
<span>Your first point is (1,4) The second is (2,1). Use the formula
y-y
x-x = slope
4-1
1-2 = slope
3
-1
3/-1 equal to -3</span>
Answer:
$15.69
Step-by-step explanation:
subtract delivery fee: 49.58 - 2.5 = 47.07
divide by amount of pizzas: 47.07 / 3 = 15.69
Answer:
Step-by-step explanation:
Total percentage = 100%
And we know that proportions of Vanilla +chocolate +strawberry = 100%
Proportion of Vanilla = 45%
Proportion of Strawberry = 1/4 *100 = 25%
Let proportion of chocolate be represented by variable C;
So, 45% +25% + C = 100%
65% +C = 100%
Subtract 65% from both sides to solve for C;
C=100% - 65%
C = 35%
Therefore there is 35% of chocolate in the shop.
Answer:
0.4444
Step-by-step explanation:
Use the following property to ease the calculation:
P(At least one)=1-P(None)
Total number of electrical components: 9
Number that does not function well :1
Number that functions well : 8
We have 
ways to to choose 4 good components from 8.
We have 
ways to choose 4 components from a total of 9.
If all function properly then none is bad, we 
way to do this.
P(At least one)=
P(At least one)=
P(At least one)=0.4444
