MATHEMATICS MIDDLE SCHOOL

8x-2=4+5x
I got x=2 is that correct

Answers

Answer 1
Answer:

Answer: X=2


Step-by-step explanation:

8x-2=4+5x

8x-5x=4+2

3x=6

x=2

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A cylindrical soup can is 10cm tall and had a diameter of 6.36. What is the approximate volume? Can u explain how to solve it

Answers

V=317.53 
in order to find the volume of a cylinder you use the formula V= (pi) (radius)^2 (height)  
in this problem the diameter was 6.36 but you need the radius so you just divide 6.36 in half and you'll get 3.18 
first you plug in the radius and height into the formula so it'll look like this V= (pi) (3.18)^2 (10) and get the answer which would be 101.12 then you times that by pi which is 3.14 and you will get 317.53 which is your answer 

The graph shows Susan’s distance from her office, in yards, as she runs errands, over time, in minutes.How much time did Susan spend moving toward her office?


________ min

Answers

The question is asking how much time Susan spent moving toward her office.  On the graph, the y-axis represents the distance Susan is from her office, so the amount of time she is moving toward her office is the amount of time the graph is going down.

As you can see, the graph is going down from the 10 to 16 minute marks and the 22 to 26 minute marks.  In total, this is 20 minutes in which the graph is going down.

Therefore, Susan spends 20 minutes moving toward her office.

on Saturday Leo and his brother drove into town to visit their mom Leo is trying to remember how much he spent on gas and tolls tolls were a dollar $1.75 each and he also spent $28 at the gas station to fill up what are the terms and their factors and coefficients of the algebraic expression that represents the total cost of gas and tolls

Answers

Let t be the number of tolls they crossed.

Amount they spent at each toll = $1.75.

Amount they spent at gas station = $28.

Let C be the total amount they spent on gas and tolls.

If they crossed 1 toll, then

C = 28 + 1.75(1).

If they crossed 3 tolls, then,

C = 28 + 1.75(3)

If they crossed t tolls, then,

C = 28 + 1.75t

Here, the terms are 28 and 1.75t and the factors are 1.75 and t.

The slope of a line is 7/10 . One point on the line has coordinates (1, 2). Which ordered pair represents another point on the line?

Answers

(x,y)

y=mx+b
m=slope
b=yintercept
slope=7/10
one point is (1,2) or x=1, then y=2
find b
y=7/10x+b
2=7/10(1)+b
2=7/10+b
minus 7/10 both sides
1 and 3/10=b
13/10=b
y=7/10x+13/10
input values for x and get values for y
one point is (0,13/10)

Complete the solution of the equation. Find the value of y when x equals -2. -4x+8y=-24 ​

Answers

Answer:y=-4

Step-by-step explanation:

Multiply -4 by -2 you get positive 8 rewrite the equation subtract 8 from both sides that leaves you with 8y=-32 your final step is to divide both sides 8 that leaves you with -4 which is the answer.

Answer:

y=-4

Step-by-step explanation:

-4(-2)+8y=-24

The negatives cancel out to make a positive.

8+8y=-24

subtract the number without a variable from the answer.

-24-8=-32

You are taking more away from the negative.

8y=-32

Divide the 32 by 8 to get your answer

-32/8=-4

Therefor your answer is y=-4

Anna makes hand-painted plates. Her overhead cost are $750 per week, and she pays an additional $10 per plate in material cost. If Anna sells the plates for $25 each, how many plates does she have to sell each week before she can make a profit?

Answers

From the question we get the following equation:
750+10p=25p
750=15p
p= 750/15
p=50

So if Anna sells 50 plates she will earn total $1250. Her cost are 750 + 50*10 = $1250. That means that Anna break even when she sells 50 plates. The question are when is Anna making a profit? When Anna sells more than 50 plates.
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