i need these asap ill give brainliest

Answer:

the answer is 123ft

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

1 - The sum of best times for the legs is 56.81 +59.22 +57.39 +60.11 = 233.53 seconds (3.89 minutes). Without additional information about the effects of training or the normal variation in times, this is the best prediction we can make.

2 - Since the team’s best time for the race is less than 4 minutes, the eighth graders earn 40 points.

3- 58.3825 (About 58) Average is found by adding all the data up and dividing by the amount of info there is. In this Case: 233.53 divided by 4 = 58.3825 which is around 58.

4- The seventh graders because the eighth graders got 58 which is more than 50 so the 7th grader would get the points

5- Kate’s best friend jumped 8/21 feet more than Kate did. First to find the difference between two fractions they need a common denominator, 21 works for this. Then the actual fractions need to match the denominator. 7/21 and 15/21 are our new fractions. Then when subtraction you subtract the numerators, the answer to that is 8/21 after simplifying (in this case you cant) you subtract the whole numbers, 6 – 6 = 0 the add the whole and fraction together. Kate’s best friend jumped 8/21 more feet than Kate did.

6- The seventh graders.

7- 42 5/8 + 39 3/5 Find common denominator for the fractions and rewrite them using the common denominator: 5/8 = 25/40 3/5 = 24/40 25/40 + 24/40 = 49/40 = 1 9/40 1 9/40 + 42 + 39 = 82 9/40 feet.

8- 9/40 = 0.225, plus 82 feet = 82.225 feet,  this is less than 82.5, so the 8th graders earned the 50 points.

9- The equation would be the total of completed jumps divided by the total number of attempts: (2 +4 + 1) / (3 + 6 +4) = 7/13 = 0.538 average.

10- 0.538 is greater than 1/2 ( 0.50), so the 8th graders earned 50 points.

11- The race is 111.6 m long. 8 hurdles spaced 12.3 m apart means 7 spaces that are 12.3 m in length; 7*12.3 = 86.1

Step-by-step explanation:

Would love brainliest

Answer:

multiply by 4 then its 48/100 then I think its 48 percent

Step-by-step explanation:

multiply 4 to get 48 multiplying 12 by 4 and then 48 % because it is 48 of 100 :)

Jeff is 32, His Daughter is 8

The relationship between the age of Jeff and his daughter can be summarized by the following systems of equation:

Jeff's age = x

Jeff's Daughter's age = y

x=4y    jeffs age is equal to his daughters times four

x-5=9(y-5) jeffs age minus five is equal to his daughters age minus five as well times 9

Combining these equations will get us x=32, y=8.

The algebraic equation 4D - 5 = 9D - 45. The current age of Jeff's daughter is 8 years old.

Let's represent the current age of Jeff's daughter as "D" and Jeff's current age as "J".

According to the problem:

Jeff is 4 times older than his daughter, so we can express this relationship as:

J = 4D

Five years ago, he was 9 times older than his daughter. This means that their ages five years ago are:

(J - 5) = 9(D - 5)

Now, we can write the algebraic equation to determine the age of his daughter (D):

(J - 5) = 9(D - 5)

Since we already know that J = 4D, we can substitute this into the equation:

(4D - 5) = 9(D - 5)

Now, we can solve for D, which represents the current age of Jeff's daughter. Expanding equation:

4D - 5 = 9D - 45

Next, move the variables to one side and the constants to the other side of the equation:

4D - 9D = -45 + 5

Combine like terms:

-5D = -40

Finally, solve for D:

D = -40 / -5

D = 8

Therefore, the current age of Jeff's daughter is 8 years old.

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Answer:

16y - 4

Step-by-step explanation:

4y(4y - 4) - 4(- 4 + 5 + 4y^2)

16y - 16y - 4(1 + 4y^2)

16y - 16y - 4(4y^2 + 1)

16y^2 - 16y^2 + 4

16y - 4

Answer:

Step-by-step explanation:

80 out of 1200 frogs in the population have spots.

Answer:

The farmer's market apples cost $1.50 per pound.

The grocery store apples cost $1.35 per pound.

Samantha should buy her apples from the grocery store, where the apples cost $0.15 less per pound than the farmer's market apples.

Step-by-step explanation:

The graph shows that 2 pounds of apples costs $3.00, so divide the cost by 2 for the cost of a single pound:

3 ÷ 2 = 1.5

Solve for the grocery store apple cost per pound by replacing x with 1 in the given equation:

y = 1.35(1)

Then solve for y:

y = 1.35

Answer:

(5 to the power of 2 - 8)x2

Step-by-step explanation:

Partheis

exponents

multiplication/division

addition/subtaction

if you follow this order (PEMDAS) to solve the problems they all equal 16 excpet the last one

Answer:

the second one because 5^2-(8x2) the simply expression would be 400 when the rest are 9 so that's my reasoning :)

Step-by-step explanation:

hope that helps.

Answer:

I think it is similar, congruent, proportional

Step-by-step explanation:

Answer:

1 -2/5

2. 3

3. 1/2

Step-by-step explanation:

1 m=y2-y1/x2-x1

-16-4= -20

-6-2= -8

m=-8/20

m=-2/5

Answer:

she selling five dollars

Step-by-step explanation:

Answer:

the first person is wrong

Step-by-step explanation:

the answer is -1/10x+240

The function can be used to find y, the number of gallons of fuel remaining in the tank of the semi-truck after it has traveled x miles is -1/10x + 240.

The equation of a straight line can be represented by:

y = mx + c

Where m is the slope of the graph and c is the intercept on the y axis.

From the graph attached, the intercept on the y axis is 240,

therefore c = 240.

To find the slope, we use the equation:

m = change in y / change in x

m = (195 - 240) / (450 - 0)

m = -45/450

m = -1/10

by substituting the value of c and m in the equation gives:

y = mx + c

Therefore, the answer is -1/10x + 240.

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Answer:

the soda has LESS sugar per serving

Step-by-step explanation:

apple juice- 216/8=27

soda=234/9=26

Answer:

Apple juice has less sugar, soda has more sugar

Step-by-step explanation:

Apple juice has 216 grams of sugar, which is less than 234 grams of sugar that soda has.

Have a good day :)

Answer:

3509 is tie correct awnser

Step-by-step explanation:

Answer:

blue is 3 red is 2 red is one and yellow is 4

Step-by-step explanation:

its pretty obvious

Answer:

$1.50/hour

Step-by-step explanation:

6 ($$) divided by 4 (hours) is 1.5 dollars/hour.

Answer:

cheryl

Step-by-step explanation:

Answer:

PRT B: Cheryl owes the bank more because the absolute value of -3.00 is 3.00, and the absolute value of -2.75 is 2.75 and 3 is greater than 2.75

Step-by-step explanation:

Dont know how i do part A

Answer: I don't know the answers for 3&4

Step-by-step explanation:

Question 1:

1foot=0.3m(2.718282)t(2.718282)r

Step 1: Divide both sides by o^2t.

fo2to2t=2.216717mrto2t

f=2.216717mro2

Answer:

f=2.216717mro2

Question 2:

1mil(2.718282)=1.6kilom(2.718282)t(2.718282)rs

Step 1: Add -11.82249iklmorst to both sides.

2.718282ilm+−11.82249iklmorst=11.82249iklmorst+−11.82249iklmorst

−11.82249iklmorst+2.718282ilm=0iklmorst

Step 2: Factor out variable i.

i(−11.82249klmorst+2.718282lm)=0iklmorst

Step 3: Divide both sides by -11.82249klmorst+2.718282lm.

i(−11.82249klmorst+2.718282lm)−11.82249klmorst+2.718282lm=0iklmorst−11.82249klmorst+2.718282l

Answer:

i=0ikorst−11.82249korst+2.718282

Answer:

-4

Step-by-step explanation:

4x - 4 = 4x + ___

The answer would be -4. It would be equal becuase the right side would be 4x + (-4) which is the same as 4x - 4. I hope this helped you!

Answer:

First answer = 36

Second answer = 9

Third answer =1/4

Step-by-step explanation:

The probability of rolling an even number and then an odd number is 1/4.

Probability is simply the chance of getting an event from a sample space. Total probability of all the outcomes in an experiment will be always 1.

Probability of an event can be found by dividing the number of desired outcomes with the total number of outcomes.

Here two number cubes are rolled. Each number cube has total 6 outcomes.

If the sample space consists of all the outcomes of first and second number cubes,

Size of sample space = 6² = 36

We have to find the probability of rolling an even number on the first cube and then an odd number on the second cube.

There are 3 chances of having an even number for the first cube which are 2, 4 and 6.

There are 3 chances of having an odd number for the second cube which are 1, 3 and 5.

Therefore number of desired outcomes = 3² = 9

Probability (first is even and second is odd) = Number of desired outcomes / Size of the sample space

Probability (first is even and second is odd) = 9/36 = 1/4

Hence the probability of getting an even number on the first number cube and then an odd number on the second cube is 1/4.

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Answer:

6.5y+10 or the second option

Step-by-step explanation:

0.5y+10.5+6.5y-0.5-0.5y

Combine like terms:

10.5-0.5 is 10

0.5y+6.5y-0.5y is 6.5y

So, it is 6.5y +10

second option.

Hope this helps!  You can hit the crown if you want.

#Team Rainbows!~

Answer

6.5y+10

Step-by-step explanation:

Let's simplify step-by-step.

0.5y+10.5+6.5y−0.5−0.5y

=0.5y+10.5+6.5y+−0.5+−0.5y

Combine Like Terms:

=0.5y+10.5+6.5y+−0.5+−0.5y

=(0.5y+6.5y+−0.5y)+(10.5+−0.5)

=6.5y+10