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Fudgin [204]
3 years ago
10

In the first event, the eighth graders are running a baton relay race with three other classmates. The team's top speed for each

leg is 56.81 seconds, 59.22 seconds, 57.39 seconds, and 60.11 seconds. Use the information to predict the team's best time for the race.
Mathematics
1 answer:
Vladimir [108]3 years ago
3 0

Answer:

  233.53 s

Step-by-step explanation:

The sum of best times for the legs is ...

  56.81 +59.22 +57.39 +60.11 = 233.53 . . . seconds

Without additional information about the effects of training or the normal variation in times, this is the best prediction we can make.

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Raju's father is 26 years younger than raju's grandfather and 29 years older than raju. The sum of the ages of all the three is
Ugo [173]

Answer:

Raju = 17 years

Raju's father age = 46 years

Raju's grandfather age = 72 years

Raju's grandmother = 68 years

His sister = 10 years old

Step-by-step explanation:

Raju’s father is 26 years younger than Raju’s grandfather and 29 years older than Raju. The sum of the ages of all the three is 135 years. Also, Raju's Grandmother is four times of Raju’s age and his sister is 7 years younger than him.

Let

Raju's age = x

Raju's father age = x + 29

Raju's grandfather age = (x + 29) + 26

Total ages = 135

(x) + (x + 29) + (x + 29) + 26 = 135

x + x + 29 + x + 29 + 26 = 135

3x + 84 = 135

3x = 135 - 84

3x = 51

x = 51 /3

x = 17

Raju's age = x = 17 years

Raju's grandmother = 4 times raju's age

= 4 × 17 years

= 68 years

his sister = 7 years younger than him.

= 17 - 7

= 10 years old

Raju's father age = x + 29

= 17 + 29

= 46 years

Raju's grandfather age = (x + 29) + 26

= 46 + 26

= 72 years

3 0
3 years ago
HELP ME NOW!!!!!!!!!! (ALGEBRA)
melisa1 [442]

\\ \tt\hookrightarrow( g\circ h)(x)=g(h(x))

\\ \tt\hookrightarrow \dfrac{8(3x+10)-1}{3x+10+4}

\\ \tt\hookrightarrow \dfrac{8(3x)+8(10)-1}{3x+14}

\\ \tt\hookrightarrow \dfrac{24x+80-1}{3x+14}

\\ \tt\hookrightarrow \dfrac{24x+79}{3x+14}

Done

3 0
2 years ago
Read 2 more answers
How do you write 720,080 in expanded form with exponents
liraira [26]
The expanded form for that problem would be (7x10^5) + (2 × 10^4) + (8x10^1)
when i put ^then a number i mean to that power like 2 to the 4th power i would write 2^4
8 0
3 years ago
A comic-strip writer churns out a different number of comic strips each day. For 16 days, the writer logged the number of comic
Arte-miy333 [17]
The distribution will be skewed to the positive side because the mean is greater than the median.
Mean: 3.7
Median: 3

Answer: B
6 0
3 years ago
Please help, I dont know how to do this​
Mrrafil [7]

Answer:

\frac{y-2}{4}

Step-by-step explanation:

Let's start by factoring everything:

\dfrac{\frac{y^2+y}{y^2-2y}}{\frac{4y+4}{y^2-4y+4}}=

\dfrac{\frac{y(y+1)}{y(y-2)}}{\frac{4(y+1)}{(y-2)^2}}=

Now, you can cancel out some terms:

\dfrac{\frac{y+1}{y-2}}{\frac{4(y+1)}{(y-2)^2}}=

Now, when you divide a fraction by another fraction, that is the same as multiplying the first fraction by the reciprocal of the second one:

\frac{y+1}{y-2}\cdot \frac{(y-2)^2)}{4(y+1)}=

\frac{y-2}{4}

Hope this helps!

4 0
3 years ago
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