Let the number sold of veggie pizza be a
The number sold of cheese pizza be b
a+b=25…1
A+7=b…2
Sub 2 into 1
a + a+7 = 25
2a+7=25
2a=18
a=9
Sub a=9 into 2
9+7=b
b=16
They sold 9 veggie pizza and 16 cheese pizza
Answer:
Step-by-step explanation:
money given to children=1300x5
=6500
total money =6500+450
=6950
Answer: B. The procedure for constructing the confidence interval is robust. The larger the sample size, the more resistant the mean. Therefore, the confidence interval is more robust.
Step-by-step explanation:
Large sized data samples usually have more stability than data with small samples, they yield a mean value which edges closer to the value of the population data. This means that large size data samples will have a mean which is more resistant to change than samples with a lower sample size. The confidence interval gives robustness while constructing a model by giving te leverage for a range of values based in a certain level of confidence upon which a statistical vale can be tested for validity.
Answer:
if the drawing length is 5 inches, the actual length in feet would be 12.5 ft
Step-by-step explanation:
2 inches = 5 ft
1 inch = 2.5 ft
5*2.5=12.5 ft as final answer.
hope it helps
Answer:
If a line is parallel to another line they’ll have the same slope. We can figure out the slope by taking the given equation of a line and changing it to slope-intercept formula.
x + 3y = 15
3y = -x + 15
y = -1/3 x + 5
Now we know the slope of our line is -1/3. We can use this and the given point to calculate our y-intercept, commonly known as b in the slope-intercept formula.
-5 = -1/3 (-6) + b
-5 = 2 + b
-7 = b
Now that we know our slope, m, and our y-intercept, b, we can write the equation of the line.
y = mx + b
y = -1/3 x - 7
Step-by-step explanation:
