Answer:
There were 7 cats
Step-by-step explanation:
In this question, we are asked to calculate the number of individual cats and dogs present at an animal shelter on a certain Monday.
Since we do not know the exact numbers, let’s represent these animals by variables. Let the number of dogs be d and the number of cats be c .
Since there are a total of 9 animals, this means;
c + d = 9 •••••••••(I)
Let’s now get the second equation out of their finances;
Total amount spent on dogs will be 7 * d = 7d while total amount spent on cats will be 5.5 * c = 5.5c. If we add both, we will get the total amount spent which is $52.5
Mathematically therefore;
5.5c + 7d = 52.5 ••••••••(ii)
Now from 1, we can say that c = 9 - d
Let’s substitute this in ii
5.5(9-d) + 7d = 52.5
49.5 - 5.5d + 7d = 52.5
1.5d = 52.5 - 49.5
1.5d = 3
d = 3/1.5 = 2
Since d = 2, c = 9 - d = 9 - 2 = 7
Answer:
90.75 cm^2
Step-by-step explanation:
The area of a trapezoid is given by
A = 1/2 ( b1+b2) *h
where b1 and b2 are the lengths of the bases and h is the height
A = 1/2(8.5+ 15.7) * 7.5
1/2 (24.2) 7.5
90.75 cm^2
Step-by-step explanation:
hope it helps you
Answer:
Width = 3.75 feet
Length = 9.75 feet
Step-by-step explanation:
Given:
Length of fencing = 27 feet
Find:
Dimensions of the garden
Computation:
Assume
Width = x
So,
Length = x + 6
2(L+B) = Perimeter
2(x + x + 6) = 27
2(2x + 6) = 27
4x + 12 = 27
4x = 15
x = 3.75
Width = 3.75 feet
Length = 3.75 + 6 = 9.75 feet
Answer:
It's cos(x) = 1/2
Step-by-step explanation:
The First one is A and the second one is also A.