whats the most accurate estimation of 65+77

Answers

Answer 1

Answer: you could round 77 to 80 and 65 to 70 and then add 70 and 80 and you will get 150

Answer 2

Answer: the answer to your question is 142

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What is the solution set of the equation x²+2x-24=0?

Answers

Simple...

you have $x^(2) +2x-24=0$

AND WORK IS ATTACHED!! :D

150 adults complete a survey.80 are women.
Write the ratio

in its simplest form.

Answers

150: 80 = 1 7/8 hope u have a blessed day

Answer:

7:8

Step-by-step explanation:

150 adults complete a survey.

80 are women

therefore 70 are male (150-80)

the ration would be 7:8

Have you ever worked with variables? Algebra is a branch of mathematics that specifically deals with the idea of using variables to solve problems. What kinds of problems have you already solved using variables? Do you know any real-life applications for variables?Think about the numbers you encounter in the world around you. Do you understand what they really mean? Interactions at grocery stores, gas stations, and online shopping commonly involve numbers. These interactions can be better understood using algebra. Is there anything you don’t know involving numbers that you wish you better understood?

Answers

Answer:

Well, I think we all worked with variables, but don't realise about it, because when people see these terms ''variable'', ''algebra'', they freak out.

The reality is that variables are everywhere, they are all those stuff that can variate: weigh, highness, money, population, interests, and so on.

A common problem I solved using variables is measuring time. For example, when I'm going to school I tend to calculate the time of my way.

Well, whenever you are playing a sport many things causes you to consider the variables. That is the first variable that popped in my head.

4a²+4a x a²-5a
a²-25 8a

Answers

(4a^2 + 4a)/(a^2-25) x (a^2-5a)/8a
Factor the possible ones to be easier
[4a(a+1)]/[(a-5)(a+5)] x [a(a-5)/8a]
Cancel the a-5
[4a(a+1)]/[a+5)] x a/8a
cancel the 4a and 8a(8a becames 2)
[a+1]/[a+5] x a/2
now multiply
[a(a+1)]/[2(a+5)]<---- can be the answer or:
(a^2+a)/(2a+10)

Amir arranged 9 photos on a bulletin board. He put the photos in rows. Each row contains the same number of photos. How many photos could be in each row?

Answers

Answer: There will be 3 rows with 3 photos.

Step-by-step explanation:

Since we have given that

Number of photos to be arranged by Amir on a bulletin board = 9

According to question, we have given that each row contains the same number of photos.

Let the number of rows be x

So, the number of photos also be x

So, our equation becomes

$x^2=9\n\nx=√(9)\n\nx=3$

So, there will be 3 rows with 3 photos.

three rows of threes

A decorative steel frame is shown below it is made of a circular section and and 6 stems the length of each stem is 45 cm work out the total length of Steel used in the frame

Answers

A total of 552.86 cm of steel is used in the frame development.

What is Equation Modelling?

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

We have a decorative steel frame is shown below it is made of a circular section and and 6 stems the length of each stem is 45 cm.

Assume that the total length of the steel used is [x] cm. Then -

x = 2πr + 6r

x = 2 x 22/7 x 45 + 6 x 45

x = 282.86 + 270

x = 552.86 cm

Therefore, a total of 552.86 cm of steel is used in the frame development.

To solve more questions on circumferance, visit the link below-

brainly.com/question/15529702

#SPJ5

Answer:

552.78