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3 years ago

Will make brainliest if answered correctly

Mathematics

2 answers:

slava [35]3 years ago

6 0

The average speed was 62.5 kilometers.

stealth61 [152]3 years ago

3 0

Answer:

3.75Km

Step-by-step explanation:

to find Average speed you do distance over time so it would be 225/25=3.75

You might be interested in

Identify the solution(s) of n2 – 5n = 24.

bija089 [108]

Answer:

n=-3 or n=8

Step-by-step explanation:

Let's solve your equation step-by-step.

n2−5n=24

Step 1: Subtract 24 from both sides.

n2−5n−24=24−24

n2−5n−24=0

Step 2: Factor left side of equation.

(n+3)(n−8)=0

Step 3: Set factors equal to 0.

n+3=0 or n−8=0

n=−3 or n=8

Answer:

n=−3 or n=8

Hope this helped!???

6 0

3 years ago

Find four consecutive odd integers such that 10 more than twice the least is equal to the sum of the third and fourth.

Lady bird [3.3K]

Consecutive odd numbers are 2 apart

they are
x,x+2,x+4,x+6

10+2x=x+4+x+6
10+2x=2x+10
x=x
true
any consecutive odd integers will work

1,3,5,7 works
3,5,7,9 works
etc

6 0

3 years ago

Suppose a laboratory has a 26-gram sample of polonium-210.The half-life of polonium-210 is about days. a.How many half-lives of

vovangra [49]

Answer:

a) Two half lives, b) $m(276) = 6.526\,g$

Step-by-step explanation:

a) The polonium-210 has a half life of 138.4 days. Therefore, 1.994 half lives have past.

b) Mass decay is described by the following exponential model:

$m(t)=m_{o}\cdot e^{-\frac{t}{\tau} }$

The time constant for the isotope is:

$\tau = \frac{138.4\,days}{\ln 2}$

$\tau = 199.669\,days$

The mass of the isotope after 276 days is:

$m(276) = (26\,g)\cdot e^{-\frac{276\,days}{199.669\,days} }$

$m(276) = 6.526\,g$

7 0

3 years ago

Read 2 more answers

A bag contains:

professor190 [17]

Answer:

i would say the answer is J. 35

Step-by-step explanation:

sowwy if i am wrong but if not can have brainliest

5 0

3 years ago

An arithmetic sequence has the terms a6=53 a 6 = 53 and a8=61 a 8 = 61 . Questions: What is the value of d d ? AnswerIncorrect W

leonid [27]

The given terms are two terms apart, so their difference is twice the difference of adjacent terms.

$a_8-a_6=2d=61-53=8\\\\d=\dfrac{8}{2}=4$

The value of d is 4.

3 0

3 years ago

Read 2 more answers