Answer:
30 mph
Step-by-step explanation:
Let the morning speed be represented by s.
Then the total distance drivern is 310 mi and this is equal to
5s + 4(s + 10):
5s + 4s + 40 = 310, or
9s = 270
Solving for s, we get s = 270/9 = 30
Then s + 10 = 40
He drove 30 mph in the morning and 40 mph in the afternoon.
Check: (30 mph)(5 hrs) + (40 mph)(4 hrs) = 310 miles. CORRECT
Answer:
240
Step-by-step explanation:
The rectangles area is 200 plus what the Triangles are which is 40. A=bxh/2
Answer:
48
Step-by-step explanation:
Let X represent the total number of the calculator, then we can form an equation from the explanation of the question as
X × 75/100=36
75x=36×100
Making X the subject of the formula we have,
X=3600/75
X=48
Hence, 48 calculators can the bag hold when filled
Answer:
Horizontal line
Step-by-step explanation:
Zero slope means that the quotient "rise/run" equals zero.
A zero for a quotient of two numbers implies that the NUMERATOR is zero and the denominator different from zero.
Analyzing what a "rise" of zero means, we understand that there is NO RISE in the graph of the line. And no rise of any type means the line is flat (horizontal).
