MATHEMATICS MIDDLE SCHOOL

Jarrett splits his bag of j jelly beans into two equal piles and gives one pile to his brother. He then gives his brother seven more beans. Write an algebraic expression to represent the number of beans his brother has?

Answers

Answer 1

Answer:

Answer: j/2+7= the amount his brother has

Step-by-step explanation:

I'm going to do an example equation, so let's pretend j=30

Step 1: Divide the jelly beans in half (by 2)

30/2=15

Step 2: So now they each have 15 jellybeans, but if Jarrett gives his brother 7 jellybeans...

15+7= 22

Answer 2

Answer:

Answer:

½j + 7

Step-by-step explanation:

j = jelly beans

Jarrett splits his bag of j jelly beans into two equal piles

so now we have two equal piles of the jelly beans

½j and ½j

and gives one pile to his brother

so right now the brother has
½j

He then gives his brother seven more beans

we add 7 to our equation and now

this is the algebraic expression that represents the number of beans the brother has:

½j + 7

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200 songs, 24 are country. what percentage are country songs?

Answers

24/200=0.12 or 12% are country songs

Which point is 7 units from (–2, 4)? A.
(–5, 4)

B.
(–2, 3)

C.
(5, 4)

D.
(9, 4)

Answers

The distance formula:
$d=√((x_2-x_1)^2+(y_2-y_1)^2)$

$(x_1,y_1)=(-2,4) \nd=7 \n \n7=√((x-(-2))^2+(y-4)^2) \n7=√((x+2)^2+(y-4)^2) \ \ \ |^2 \n49=(x+2)^2+(y-4)^2$
Check which point satisfies the equation:
$(x,y)=(-5,4) \n49 \stackrel{?}{=} (-5+2)^2+(4-4)^2 \n49 \stackrel{?}{=} (-3)^2+0^2 \n49 \stackrel{?}{=} 9 \n49 \not= 9 \ndoesn't \ satisfy \ the \ equation$

$(x,y)=(-2,3) \n49 \stackrel{?}{=} (-2+2)^2+(3-4)^2 \n49 \stackrel{?}{=} 0^2+(-1)^2 \n49 \stackrel{?}{=} 1 \n49 \not= 1 \ndoesn't \ satisfy \ the \ equation$

$(x,y)=(5,4) \n49 \stackrel{?}{=} (5+2)^2+(4-4)^2 \n49 \stackrel{?}{=} 7^2+0^2 \n49 \stackrel{?}{=} 49 \n49=49 \nsatisfies \ the \ equation$

$(x,y)=(9,4) \n49 \stackrel{?}{=} (9+2)^2+(4-4)^2 \n49 \stackrel{?}{=} 11^2+0^2 \n49 \stackrel{?}{=} 121 \n49 \not= 121 \ndoesn't \ satisfy \ the \ equation$

The answer is C.

Which weighs more 5.2 g or 500 cg

Answers

If Cg stands for centigrams,500 Cg = 5 grams 5.2>5 5.2 grams is heavier

5.2 grams weighs more

Is 9 a solution to 3y<27

Answers

No, because if y is in fact 9 then the expression $3y<27$ evaluates to $27<27$ which is a false hence y cannot be 9 but rather $y\in(-\infty,9)$ .

Hope this helps.

Answer: No

Step 1: Rewrite the equation

3y<27

Step 2: Get y alone

To do this we need to divide both 3y and 27 by 3

3y<27

3y/3<27/3

y=9

Step 3: Substitution

We now know that y equals 9. Now let’s substitute this into the equation

3y<27

3(9)<27

27<27

Step 4: Determining the answer

Since 27 is not less than (27), 9 is not the solution for y. However, any number less than 9 would work for this equation

Hope this helps comment below for more questions :)

A matchbox tray slides into its outer cover in how many different ways can you do this

Answers

-- Slide end-A of the tray, right-side-up, into end-A of the cover. (0 0 0)
-- Slide end-A of the tray, right-side-up, into end-B of the cover. (0 0 1)
-- Slide end-A of the tray, upside-down, into end-A of the cover. (0 1 0)
-- Slide end-A of the tray, upside-down, into end-B of the cover. (0 1 1)
-- Slide end-B of the tray, right-side-up, into end-A of the cover. (1 0 0)
-- Slide end-B of the tray, right-side-up, into end-B of the cover. (1 0 1)
-- Slide end-B of the tray, upside-down, into end-A of the cover. (1 1 0)
-- Slide end-B of the tray, upside-down, into end-B of the cover. (1 1 1)

Write 0.292929 as a fraction

Answers

would write that as 29/100

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