MATHEMATICS MIDDLE SCHOOL

Y equals 3X
X equals negative 2Y +70

Answers

Answer 1
Answer:

Answer:

y=6y+70

Step-by-step explanation:

plug in x=2y+70 into y=3x

then distribute 3 to 2y and 70

simplify.

y=6y+70

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6 x 2/5 will be equal to, greather than, or less than 2/5?

Answers


Well, we know that

-- 6 cows are greater than 1 cow

-- 6 trucks are greater than 1 truck

-- 6 candy canes are greater than 1 candy cane

So we're pretty sure that if you have a bunch of boxes with
the same thing in every box, then 6 boxes are going to have
more of it than 1 box has.

Great.  That always works.  It doesn't matter whether the boxes
all have cookies, hamburgers, puppies, or 2/5 in them.  6 boxes
always have more than 1 box has.

Are you comfortable with this reasoning ?

Answer:

Greater than

Step-by-step explanation:

62% of 150 is what number

Answers

First put the percent into decimal form. This is .62.
Then multiply .62 by 150. This is 93. 93 is 62% of 150.
Put 62/100 = x/150. If you simplify you should be able to get your answer.

24% of what number is 12

Answers

24 percent of 50 is equal to 12.

We have,

To find the number when 24% of it is equal to 12, we can set up the following equation:

0.24 * x = 12

Here, x represents the unknownnumber.

To solve for x, we divide both sides of the equation by 0.24:

x = 12 / 0.24

Simplifying the division gives us:

x = 50

Therefore,

24 percent of 50 is equal to 12.

Learn more about expressions here:

brainly.com/question/3118662

#SPJ6
We set up a proportion: 12/?= 24/100

Cross multiply: 24*?= 12*100
⇒ ?= 12*100/24= 50

The final answer is 50~

Jonathas wants to get a cell phone. The phone costs $59 and the plan costs $39 per month. Which expression represents the total cost of a cell phone after m months? 39m
59m
59 + 39m
39 + 59m

Answers

$59 is the fixed cost of the phone and that will never change. This means it won't have a variable attached and will simply be added on to the cost

$39 is how much Jonathans will pay per month. This will change based on how many months pass. This will have the variable attached.

This means the formula is:

59 + 39m

Let me know if this made sense!

~Just a girl in love with Shawn Mendes

Answer:

i say c

Step-by-step explanation:

H+9.7=-9.7

how would I show work for this

Answers

H+9.7=-9.7\ \ \ |subtract\ 9.7\ from\ both\ sides\n\nH+9.7-9.7=-9.7-9.7\n\nH=-(9.7+9.7)\n\n\boxed{H=-19.4}

A drawer has some red, green, and blue marbles. There are 33 marbles.There are 4 times as many red marbles as green marbles. There are half
as many blue marbles as green marbles. How many blue marbles are in
the drawer?

Answers

Green marbles = x.
There are 4 times as many red marbles as green marbles, so red marbles = 4x.
There are half as many blue marbles as green marbles, so blue marbles = 0.5x
There are 33 marbles in total, so x+4x+0.5x=33.

x+4x+0.5x=33 \n 5.5x=33 \n x=(33)/(5.5)=(330)/(55)=(30 * 11)/(5 * 11)=(30)/(5)=6 \n \n0.5x=0.5 * 6=3

There are 3 blue marbles.
so number of red is represented by r
number of green is represented by g
number of blue is represented by b

so r+g+b=33

there are 4 times as many red as green or
r=4g
there are half as many blue as green
1/2g=b or g=2b

so r+g+b=33
we can subsitute 1/2g=b for b
r+g+1/2g=33
subsitute r=4g for r in the equation
4g+g+1/2g=33
add like terms
5 1/2g=33
multiply both sides by 2
11g=66
divide both sides by 11
g=6

there are 6 green marbles

subsitute g=6 into r=4g and g=2b

r=4(6)
r=24
there are 24 red marbles

g=2b
6=2b
divide both sides by 2
3=b
threre are 3 blue marbles



there are 24 red marbles, 6 green marbles, and 3 blue marbles and 24+6+3=33
r=24
g=6
b=3
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