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3 years ago

11

Please help I can’t understand how to solve this problem

1 answer:

Pavel [41]3 years ago

8 0

The perimeter of the rectangle:

2(4y)+2(3y+3) and 146 units.

We have the equation:

$2(4y)+2(3y+3)=146\qquad|\text{use distributive property}\\\\8y+(2)(3y)+(2)(3)=146\\\\8y+6y+6=146\qquad|\text{combine like terms}\\\\14y+6=146\qquad|\text{subtract 6 from both sides}\\\\14y=140\qquad|\text{divide both sides by 14}\\\\y=10\\\\AD=4y\to AD=4(10)=40$

Answer: AD = 40 units.

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Write 1,270 in expanded form

Vikentia [17]

Answer:

1,000 + 200 + 70

Step-by-step explanation:

Expanded form is a way of writing numbers to see the math value of individual digits.

so for example:

5,000 + 300 + 20 + 3

is 5,323.

4 0

3 years ago

Explain why the solution to 3r =2 must be less then 1.

saveliy_v [14]

For this you have to get r by itself so you put 1 over 3 and move it to the other side and then you get 2/3 as an answer

3 0

3 years ago

A fair coin is flipped 10 times and lands on heads 8 times. Provide a reason to justify the difference between the experimental

Fed [463]

Answer:

You flipped it so good it landed on tails 2 times

Step-by-step explanation:

7 0

3 years ago

For each sequence,find the first 4 terms and the 10th term<br> a) n+5<br> b)2n-1

dsp73

Answer:

a)6,7,8,9 and 10th term is 15.

b)1,3,5,7 and 10th term is 19.

Step-by-step explanation:

Given a) n+5

b)2n-1

Solution for a) n+5

Taking the value of n is 1 we get the first term of the sequence;

$n+5=1+5=6$

Similarly taking the value of n 2,3,4 we get;

$2+5=7\\3+5=8\\4+5=9$

And for 10th term we take the value of n is 10 and get;

$n+5=10+5=15$

So the solution for 1st sequence is 6,7,8,9 and 10th term is 15.

Solution for b)2n-1

Taking the value of n is 1 we get the first term of the sequence;

$2n-1=2\times1-1=2-1=1$

Similarly taking the value of n 2,3,4 we get;

$2n-1=2\times2-1=4-1=3\\2\times3-1=6-1=5\\2\times4-1=8-1=7$

And for 10th term we take the value of n is 10 and get;

$2n-1=2\times10-1=20-1=19$

So the solution for 2nd sequence is 1,3,5,7 and 10th term is 19.

3 0

3 years ago

Find the largest number which divides 870 and 260 leaving the remainders 3 and 5 respectively

stira [4]

Answer:

51

Step-by-step explanation:

You first subtract 3 from 870 and 5 from 260.Then you find the greatest common divisor of 255 and 867.

5 0

3 years ago