Answer:
Addition
Step-by-step explanation:
The first step in solving 4x-3=5 is to add 3 to both sides. This demonstrates the addition property of equality, since adding a number to both sides of an equation balances it.
Perimeter formula: p = 2(w + l)
The perimeter is 62.
p = 62
The width of a rectangle is 5 feet less than the length.
w = l - 5
Substitute and solve.
62 = 2[(l - 5) + l)]
62 = 2l + 2l - 10
62 = 4l - 10
72 = 4l
18 = l
Substitute and solve for the width
w = 18 - 5
w = 13
Therefore, the length is 18 and the width is 13.
Best of Luck!
Answer:
34.62
Step-by-step explanation:
20 percent of 28.85 is 5.77
28.85+5.77 = 34.62
Answer:
X = 10
Step-by-step explanation:
the triangles are similar meaning one is smaller we have all the sides on the smaller one
10 to 25 is a 2.5 increase
so 4 x 2.5 = 10
Answer:
We have to reject null hypothesis
Step-by-step explanation:
n = 800
P* = sample proportion = 0.67
Alpha = 0.05
Null hypothesis h0: proportion = 63%
Alternate hypothesis h1: proportion > 64%
Test statistics:
Z = (p* - P)/√pq/n
Z = 0.67 - 0.64/√0.63x0.37/800
= 0.67 - 0.63/0.017
=0.04/0.017
= 2.352
At 0.05 the critical value of z = 1.645
We compare z calculated and z critical value.
2.352 is greater than 1.645 therefore we take the decision to reject the null hypothesis at 0.05 level of significance.
The percentage of residents that supports construction is greater than 63%