3 years ago

A train travels at a constant rate of 55 miles per hour.

Mathematics

1 answer:

patriot [66]3 years ago

8 0

Answer:

55miles per hour

Step-by-step explanation:

You might be interested in

PLEASE HELP Which line has an x-intercept of -5 and a y-intercept of 3?

anygoal [31]

Answer:

the first answer or a

Step-by-step explanation:

just believe meeeee

5 0

3 years ago

If you pay $43 for a set of Pokémon cards online that were listed for $40 what is the tax percent you were charged

Alex777 [14]

Amount of tax paid = 43-40 = 3

Tax rate = 3/40 = 0.75

0.75 x 100 = 7.5%

Tax rate = 7.5%

3 0

2 years ago

You want to convert 1 kg to milligrams. You already know that 1 kg equals 1000 g explain how knowing that 1 gram equals 1000 mg

butalik [34]

1 kg=1000g*1000mg/1g=1000000mg =10⁶ mg
or you can use proportion

1000g - x mg
1 g -1000mg
x=1000*1000=1000000mg

1kg=10⁶ mg

6 0

3 years ago

Read 2 more answers

Solve for b<br> Is it square root 39? <br> Or <br> Square root 89?

cricket20 [7]

Answer:39

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

the product of two consecutive integers n and n+1 is 42. what is the positive integer that satisfies the situation?

MrMuchimi

$n(n+1)=42 \\
n^2+n=42 \\
n^2+n-42=0 \\ \\
a=1 \\ b=1 \\ c=-42 \\ b^2-4ac=1^2-4 \times 1 \times (-42)=1+168=169 \\ \\
n=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-1 \pm \sqrt{169}}{2 \times 1}=\frac{-1 \pm 13}{2} \\
n=\frac{-1 -13}{2} \ \lor \ n=\frac{-1+13}{2} \\
n=\frac{-14}{2} \ \lor \ n=\frac{12}{2} \\
n=-7 \ \lor \ n=6$

The positive integer is 6.
The consecutive integers are 6 and 7.

8 0

3 years ago