miles can she travel on a full tank of 15
gallons?
Answer:
345
Step-by-step explanation:
5 goes into 15 3 times so 115 times 3 is 345
b. If the length of AB=3x–21, DC=34, BC=4y+32, and AD=62, find the values of x and y.
c. Find the perimeter and area of rectangle ABCD.
Answer:
Step-by-step explanation:
a) no angles are described or shown
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b) Opposite sides are the same length, so we have ...
3x -21 = 34
3x = 55 . . . . . . . add 21
x = 55/3 = 18 1/3 . . . . . divide by 3
and
4y +32 = 62
4y = 30 . . . . . . . . subtract 32
y = 15/2 = 7 1/2 . . . . divide by 4
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c) The perimeter is the sum of the side lengths, so is ...
P = 2(L+W) = 2(62 +34) = 192 . . . units
The area is the product of adjacent side lengths, so is ...
A = LW = 62·34 = 2108 . . . square units
Answer:
1 solution --> y=-13/2
Step-by-step explanation:
7(y+3)=5y+8
7y +21=5y+8
2y=8-21
2y=-13
y=-13/2
2x+3y=-6
4x+3y = 12
y=77-9
1+3=6
Ir-y = 5
5x+30
Answer:
2x+3y=6
Step-by-step explanation:
standard form:
ax+by=c