3 years ago

20 points please help asap

Mathematics

1 answer:

Dafna11 [192]3 years ago

5 0

hello my name is bobert anyone of you students who have $ex with me shall win dez nuts now gimme them points

You might be interested in

Number 2 and please provide a step by step explanation!!!!

Alekssandra [29.7K]

The number of students in 5th grade is 60, since 24% of 250 is 60.

Since 90 is 38% if 250, 38 is going to be the percent of all students in sixth grade.

20% of 250 is 50, so the percent of all students in seventh grade is 50.

Finally, 45 is 18% of 250, so 18 percent of all students are in eight grade.

Hope this helped :)

8 0

2 years ago

Read 2 more answers

5x+3y=9 in standard form

tamaranim1 [39]

The standard for is Y=-5/3x +3

8 0

3 years ago

What is the value of i20+12

Sladkaya [172]

Answer:

Step-by-step explanation:

132

Hope I helepd

4 0

3 years ago

The total stopping distance T for a vehicle is T = 2.5x + 0.5x 2 , where T is in feet and x is the speed in miles per hour. Appr

Kobotan [32]

Answer:

% change in stopping distance = 7.34 %

Step-by-step explanation:

The stooping distance is given by

$T = 2.5 x + 0.5 x^{2}$

We will approximate this distance using the relation

$f (x + dx) = f (x)+ f' (x)dx$

dx = 26 - 25 = 1

T' = 2.5 + x

Therefore

$f(x)+f'(x)dx = 2.5x+ 0.5x^{2} + 2.5 +x$

This is the stopping distance at x = 25

Put x = 25 in above equation

2.5 × (25) + 0.5× $25^{2}$ + 2.5 + 25 = 402.5 ft

Stopping distance at x = 25

T(25) = 2.5 × (25) + 0.5 × $25^{2}$

T(25) = 375 ft

Therefore approximate change in stopping distance = 402.5 - 375 = 27.5 ft

% change in stopping distance = $\frac{27.5}{375}$ × 100

% change in stopping distance = 7.34 %

6 0

3 years ago

Convert 11/8 and 5/9 to decimals

svetlana [45]

Answer:

Step-by-step explanation:

11/8 as a decimal... 1.375

5/9 as a decimal... 0.55555556

8 0

3 years ago

Read 2 more answers