MATHEMATICS MIDDLE SCHOOL

A pure substance that is made of only one kind of atom is called _________. A.
an element

B.
an electron

C.
a particle

D.
a proton

Answers

Answer 1
Answer: A pure substance that is made of only one kind of atom is called an element. 

An element is a pure substance, which means it is made up of only ONE kind of atom. 
Answer 2
Answer: A pure substance that is made of only one kind of atom is called an element I hope this help:) have a nice day

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Answers

Answer:

21

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

15 +13+6-3-10=21

Round 6709 to the nearest thousand

Answers

7,000. If it's past 6,500 you round up but if it's 6,499 you round down.
7000 is 6709 rounded to the nearest thousand

At tire depot a pair of new tires sells for $216. The managers special advertises the same tires selling at a rate of $380 for 4 tires. How much do you save per tire if you purchase the managers special? ( how do you do this and what is the answer)

Answers

To find how much you save, you need to find out how much you pay for each tire. Your 2 equations are

2x=216    (x being the price of the tire, which you do not know)

x=108


4x=380

x=95


As you can see, the price of the tire from the manager's special is cheaper, but to find out by how much you subtract.

108-95=13

So you save $13 per tire.


Answer:

$13

Step-by-step explanation:

you have $216 for a pair, find how much for only one tire

216/2=108

then you need to find the unit rate for 4 tires

380/4=95

lastly, subtract to find how much more you save

108-95=13

therefore 13 is your answer

hope this helps

To the nearest tenth, find the approximate distance between points A and C. Graph with coordinates A negative 4, negative 4. B negative 2, 5. C 2, 1. D 2, negative 4. A. 3.3 units
B. 7.8 units
C. 5.2 units
D. 3.6 units

PLEASE HELP!!!!!

Answers

we have that
A(-4,-4) B(-2,5)  C(2,1)  D(2,-4)

step  1
find the distance AC with the formula 
d=√[(y2-y1)²+(x2-x1)²]------> dAC=√[(1+4)²+(2+4)²]----> dAC=√61 units
dAC=√61-----> dAC=7.8 units

the answer is
the option
B. 7.8 units

Why is 12 (m+n) equivalent to 12m + 12n

Answers

because 12(m=n) means that you are multiplying 12 times m and 12 times n. So if there is a number outside of parenthesis it gets multiplied by all the nu,beds in the parenthesis.
12(1+2)
36 either way. that is proof. if you want more proof use any number in replace of n and m
Because of the distributive property. You multiply the outside number (12) by the variables inside the parentheses (m and n). Then you add them together, so you get 12m+12n. 
You can check it by plugging in numbers for m and n, then solving it both ways. You will get the same answer.

HELP HELP HELP HELP HELP HELP HELP HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Most mornings, Kevin stops for coffee on the way to work. He spends $27 each month on coffee. In addition, he likes to occasionally go out to lunch with his coworkers. This month, he is trying not to spend more than $87 on both coffee and lunch out. If he spends an average of $6 each time he eats lunch out, and x represents the number of times he eats out, which of the inequalities represents this situation?
A.
$6x + $27 < $87
B.
$6x + $27 > $87
C.
$27x + $6 < $87
D.
$27x + $6 > $87

Answers

Answer: A. $6x + $27 < $87

Step-by-step explanation:

Your question says “...x represents the number of times he eats out”, when he eats out its $6, so that means obviously that the x would be by the 6 and the less then symbol would be facing 87 cause your wont to spend less then that amout.

Have a good day and stay safe :)

Answer:A. $6x + $27 < $87

Step-by-step explanation:
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