Jean walked 1 mile to her friends house, and then bicycled for 2 hours at m miles per hour. Write an expression for the total length of her trip.

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Answer 1

Answer: Jean walked 1 mile to her friends house, and then bicycled for 2 hours at m miles per hour. Write an expression for the total length of her trip.=(1+2m)miles

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Divide £50.00 in the ratio of 1:4 SOMEBODY HELP!!!!

Answers

1+4=5
50.00/5=10
1 unit is 10
1 unit to 4 unit

10 times 1=10
10 times 4=40

1:4
10:40

Evaluate : 5-3(x-1) when x=7

Answers

The value of 5-3(x-1) when x=7 is -13.

What is Evaluate meaning?

Evaluation is nothing but to solve an algebraic expression means to find the value of an expression by replacing the value of the variable in it.

To evaluate the expression value, we simply substitute the variable from its given value and simplify the expression by using order of operations.

In our case, the given expression is:

5-3(x-1)

Substitute the given number i.e., 7 for the variable in the expression:

5-3(7-1)

Solve the bracket first:

5-3(6)

Now solve the multiplication part:

5 - 18

Finally Subtract 5 from -18, we get:

-13

Hence the final value of the expression is -13 at x=7.

To learn more about Evaluation, refer to the link:

brainly.com/question/12837686

#SPJ2

Answer:

$\boxed{ \bold{ \boxed{ \sf{ - 13}}}}$

Step-by-step explanation:

Given , x = 7

let's find :

$\sf{5 - 3(x - 1)}$

Plug the value of x

⇒ $\sf{5 - 3(7 - 1)}$

Subtract 1 from 7

⇒ $\sf{5 - 3 * 6}$

Multiply the numbers

⇒ $\sf{5 - 18}$

Calculate

⇒ $\sf{ - 13}$

Hope I helped!

Best regards!!

2. What is the volume of the metal in this heavy-duty pipe? (It is not drawn to scale and the inside of the pipe is empty space.) Show all work and be sure to label your answer. Use 3.14 to estimate pi.

Answers

Volume of the outer cylinder = 3.14 x (1.5)² x 18 = 127.17 ft²

Volume of the inner cylinder = 3.14 x (1)² x 18 = 56.52 ft²

Volume of the pipe = 127.17 - 56.52 = 70.65 ft²

Answer: 70.65 ft²

Mr young has 30 times as many pencils as jack. The whole class has 200 times as many pencils as jack. If jack has 2pencils, how many pencils does mr young have ? And the whole school have?

Answers

well you would do 30*2= 60
and that would be your answer

Describe an infinite geometric series with a beginning value of 2 that converges to 10. What are the first 4 terms of the series

Answers

Answer with Explanation:

It is given that infinite geometric series with a beginning value of 2 , converges to 10.

Let a be the common ratio of geometric series.Where ,a<1.

Sum to infinity of a geometric series

$(a)/(1-r) for, r<1 or (a)/(r-1), for r>1.$

$2+2a+2a^2+2a^3+2a^4+.............{\text{to infinity}}=10\n\n (2)/(1-a)=10\n\n 1-a=(2)/(10)\n\n 1-(1)/(5)=a\n\na=(4)/(5)$

First four terms of geometric series

$2, 2*(4)/(5),2*((4)/(5))^2,2*((4)/(5))^3,2*((4)/(5))^4.\n\n2, (8)/(5),(32)/(25),(128)/(125),(512)/(625)$

Classify the triangle based on side lengths 5, 7 and 8.A. right
B. Acute
C. obtuse
D. no triangle can be formed with given side lengths

Answers

$a\leq b\leq c-sides\ of\ a\ triangle\ then\ a+b > c\ and\n\nif\ a^2+b^2=c^2\ then\ triangle\ is\ right\n\nif\ a^2+b^2 > c^2\ then\ triangle\ is\ acute\n\nif\ a^2+b^2 < c^2\ then\ triangle\ is\ obtuse$

$a=5;\ b=7;\ c=8\n\na^2+b^2=5^2+7^2=25+49=74\n\nc^2=8^2=64\n\na^2+b^2 > c^2\n\nThe\ triangle\ is\ acute\ (answer:B.)$

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