MATHEMATICS MIDDLE SCHOOL

What is z?
5z+8=4z+20
Once again im struggling and need help fast..=)

Answers

Answer 1
Answer: 5z+8=4z+20
-8 -8
5z=4z+12
-4z -4z
z=12
Answer 2
Answer: z= 12 hope this helps

Related Questions

A triangle is graphed in the coordinate plane. The vertices of the triangle have coordinates (–5, 2), (7, 2), and (7, –3).What is the perimeter of the triangle? A. 13 B. 34 C. 17 D. 30
For f(x)= 9x-10, evaluate f(-5)
What times what equals 12 but when you add those numbers together it equals 4
The ratio of two numbers is 7 to 5. The sum of the numbers is 24. What are the numbers?12 and 12 14 and 10 21 and 15 18 and 6
Find the volume of the composite figure. please!

What is a number cubed is 48

Answers

x = ∛48
x ≈ 3.7 or 3.5
3.7 * 3.7 * 3.7 ≈ 48
"A number cubed" is the same thing as "the cubed root of". So, the cubed root of 48 equals about 3.634
Hope this helps!!

106 over 500 as a decimal number

Answers

106/500 as a decimal is: 0.212.

You can easily find the decimal of a fraction by doing long division or inserting the fraction in a calculator (which teachers usually allow their students to use a calculator even on tests... unless if the test is about long division, etc).
 
Long division is pretty hard to do without a pen and paper, but the steps to do long division are: divide the number on the right by the left number - multiply the number on the left by the top number - subtract the number on the right by the number below it - bring down, and then repeat if you can.
(106)/(500)
0.212

What is one-tenth of 2000???

Answers

u divide by the bottom and x by the top so when you divide 2000 and 10 It gives you 200 and u x by 1 which is 200 so the answer is 200

If 45 cookies will serve 15 students, how many cookies are needed for 30 students?I think i have it but not sure

Answers

The above question has to do with proportionality, specifically direct proportionality.

Direct proportionality means when an item x is directly proportional to an item y. This is represented mathematically as:

x ∝ y

90 cookies will serve 45 students.

The number of cookies needed for 30 students is 90 cookies

From the above question,

45 cookies will serve 15 students

Hence,

15 students = 45 cookies

30 students = ?

Cross Multiply

30 students x 45 cookies / 15 students

= 90 cookies.

Therefore, 90 cookies will serve 45 students.

To learn more, visit the link below:

brainly.com/question/18536567
Because your numbers are simple in this question, you can look at it this way...

You know how many cookies are needed for 15 students but you need to fiqure out how many for 30 students. The ratio between 15 to 30 is a 1:2, AKA double. THis means that you can simply double the known number of cookies and it will give you the amount that you need for double the people.
Your answer is 90 cookies.

Which of the following is an arithmetic sequence

Answers

Answer:

A sequence that has a contant addition/subtraction to get to the next term

for example:

-3, 0, 3, 6, ...

to get to the next term, we'll need to add 3 each time

Step-by-step explanation:

Answer:

The constant of variation is constant.  

Step-by-step explanation:

1, 3, 5, 7, 9, . . . is an arithmetic sequence because it is constant with a direct variation of 2. (1 + 2 = 3; 3 + 2 = 5; . . .)

Hope that helps!! Please give me brainliest!!!!!

Ravi can type 6 words in 4 seconds. how many words can she type in 10 seconds.

Answers

15, first, you divide 6 by 4 and that will give you how many words Ravi can type per second, then multiply by 10.
Other Questions
Write a fact with the same sum as 7+5
A farmer grew a watermelon that weighed 20 lb. From his experience with growing watermelons, he estimated that 95% of the watermelon’s weight is water. How much of the watermelon is water?
Can someone help ...
anna is in a cave 40 feet below the cave entrance. She descends 13 feet, hen ascends 18 feet. Find her new position relative to the cave entrance