Mathematics College

3. Decide whether each equation is true or false, and explain how you know.
a. 9.9.3 = 35
b. 7+7+ 7 = 3 + 3 + 3 + 3+3+3+3
c. / 2 / 3 / 2 = 2/3
d. 4' = 4.1
e. 6 + 6 + 6 = 63
Which problems are true or false

Answers

Answer 1

Answer:

a.false

b.true

c.false

d.I really can't get about it.

e.false

Step-by-step explanation:

So,here;

a.9.9.3=35 is given

or,243=35 (which is false)

b.7+7+7=3+3+3+3+3+3+3

or,21=21 (which is true)

c.2/3/2=2/3

or,2*2/3=2/3

or,4/3=2/3(which is false)

e.6+6+6=63

or,18=63 (which is false)

Related Questions

Simplify the following expression.

-6 + 5 x 2 + 10 x (-2)

Answers

Answer:

= -16

Step-by-step explanation:

You will use the Please Excuse My Dear Aunt Salley method (Paranthesis, mutiplication, division, addition, and subtraction)

-6 +5 x 2 +10 x (-2)

-6  +10 -20 (a positive times a negative equals a negative)

= -16        

Step-by-step explanation:

-6 + 5 x 2 + 10 x ( -2 )         PEMDAS

-6 + 10 + -20        Parensthesis, Exponents, Multiplication & Division

4 - 20                   left to right, Addition & Subtraction left to right.

-16.

Simplify the following Expression by combining like terms: *
8x2 - 7x – 8 - 11 + 3x2 + 4x

Answers

Answer:

option 2

Step-by-step explanation:

A pail contains a certain amount of water. After Peter used it to fill a 1.5 liter can, a 750 milliliter bottle, and a 2 liter 250 milliliter tin, he realized that he had a liter of water left in the pail. How much water was in the pail at first? Write your answer in liters and milliliters. Show your work.

Answers

Answer:

Let the amount of water at beginning be x

x-1.5-0.750-2.250=1

x=5.5 litre

Step-by-step explanation:

Therefore there was 5 litre 5 mililters of water in the pail.

Answer:5500 ml or 5.5 liters

Step-by-step explanation:

First, we should note that there are 1000 milliliters in 1 liter of liquid.

So, in milliliters, Peter filled three containers with 1500 ml, 750ml, and 2250 ml with 1000ml left over.

To find the total amount, we find the sum of all the milliliters:

1500 + 750 + 2250 + 1000 = 5500 ml

Again, we know that there are 1000 milliliters in 1 liter of liquid, so:

= 5.5 liters

Can anyone solve this for me?

Answers

Answer:

multiply, 12 inches per foot

Step-by-step explanation:

Pls help I’ll brainlest pls help

Answers

Answer:

67.31

Step-by-step explanation:

27% of $53 is 14.31

$53+$14.31=$67.31

Answer:

$68.05

Step-by-step explanation:

To find out what the total cost of the meal is, multiply 1.07 by 53 * 1.2. I'd multiply 53 by 1.2 first, then multiply the product of that by 1.07.

(53 * 1.2) * 1.07 (Convert 1.2 into 6/5, and 1.07 into 107/100.)

((53 * 6)/5) * 107/100 (Multiply 53 by 6 to get 318.)

318/5 * 107/100 (Cross cancel if needed.)

159/5 * 107/50 (Multiply 159 by 107 to get 17013.)

17013/(5 * 50) (Multiply 5 by 50 to get 250)

17013/250 (Divide 17013 by 250 to get 68.052)

68.052 (Round to the nearest cent)

The meal costs $68.05 in total.

4x +4< 9x +8 Reduce any fraction to the lowest term don’t know your number and don’t use mixed fraction

Answers

Answer:

x < - 4/5

Step-by-step explanation:

Given the inequality:

4x +4< 9x +8

Collect like terms :

4x - 9x < 8 - 4

-5x < 4

Divide both sides by - 5

-5x / - 5 < 4 / - 5

x < - 4/5

I don’t know the answer to this question, I need help the question is in the picture!

Answers

Answer:

it is 112° .. as you will solve it like this (180-44=136) and each angle down there are equal so we will divide 136÷2 so each angle is 68° ,, finally to find x you can do it in two ways 1) (68+44) =112 or you can go with (180-68=112)

How much is 3/4 of four dozen​

Answers

Answer:

36

Step-by-step explanation:

Just add 12+12+12 or 12x3

Answer:

36

Step-by-step explanation:

bro if a dozen is 12 then add it 4 times it comes 48 then 3/4 is 36

is the relation shown below a function?

Answers

Answer:

No it's not a function, because the domain 20 repeats.

What is the slope of a line that is perpendicular to the line with equation 12x+3y=9?

Answers

Answer:

The slope would be 1/4.

Step-by-step explanation:

To find the perpendicular slope first you have to set this equation to y

to do this you use the subtraction prop of equality and you will get 12x-9= -3y

then you divide by -3 on both sides to get y by itself

you will get -4x+3=y

now that you know the slope is -4, you must find the negative reciprocal slope of this which means you have to flip the numerator and denominator and make the sign its opposite.

The perpendicular slope would then be 1/4.

Juniors will be hosting prom this year. They will need to make at least $ 4000 in profits from selling tickets. The juniors estimate there can be at most 600 students that can attend prom because of the size of the venue. They will profit $ 20 for each ticket sold in advance and $ 40 for each ticket sold at the door. Name your variables, and write a system of inequalities.

Answers

I need this answer too can someone please help us out with the right answer ?!

Explanation : ?

Х-y=5
x-2y=3

Can someone help me

Answers

First multiply -1 on the top to cancel X

It will give u:

-X+Y=-5
X-2Y=3 which gives u

y=2

Now, plug in the y (one of the equation it doesn’t matter which one) to solve for X

X-2=5
X=7

find the value of x for which
З(2^x-3) = 384​

Answers

Answer:

x=log2(131)

Step-by-step explanation:

3(2^x-3)=384

x=7.03342

i don't know this question but i have made it by photomath app.

you can get it from playstore

Calculate a rough estimate of the total lineal footage of lumber needed for a rectangular house 35’ x 40’?

A. 375’

B. 1,500’

C. 3,000’

D. 750’

Answers

Answer:

B. 1,500’

Step-by-step explanation:

Given;

dimension of the rectangular house, = 35’ x 40’

The actual total linear footage of lumber needed = 35’ x 40’ = 1,400'

The rough estimate should be greater than the actual estimate in 100s;

rough estimate = 1,400' + 100' = 1,500'

Therefore, the rough estimate of the total linear footage of lumber needed is 1,500'.

Solve and Simplify if you can

Alexa is baking a cake. She uses 2 3/4 cups of flour for her recipe. She decides to double her recipe. How many cups of flour will see need?

Answers

Answer:

5 1/2 cups

Step-by-step explanation:

2.75 times 2

The answer is 5 1/2 or 5.5 cups because 2 3/4 doubled, or times two. Hope this helps you understand!!

Please answer this correctly without making mistakes

Answers

5 tons and 8 lbs is i believe the answer

Answer:

5 tons and 8 pounds

Step-by-step explanation:

1 ton is equal to 2000 pounds.

40 tons is equal to 80000 pounds (40*2000)

80000+64=80064

80064/8 = 10008

10008 is equal to 10000+8

10000/2000 = 5

5 tons and the leftover 8 is pounds

Hope I was able to help! Good Luck!

Lily sorted these solid figures into two groups. What is true about the groups

Answers

Answer:

One group is completely made of cones whilst the other has cylinders

Step-by-step explanation:

I need help ASAP, marking brainliest. Please show work.

Answers

Answer:

WY = 28

Step-by-step explanation:

Using the pythagorean theorem, we can find out the measures of lenghts WX and YX individually.

VX^2 = VW^2 + WX^2

ZX^2 = ZX^2 + XY^2

Substitute

400 = 256 + WX^2

400 = 144 + XY^2

Simplify

WX^2 = 144

XY^2 = 256

WX = 12

XY = 16

WY = 28


How many centimeters are 4.7 meters

Answers

Answer:

470 cm

Step-by-step explanation:

4.7 x 100 = 470

1 meter is 100 centimeters so 470

Is this a function ?

Answers

no it’s not, hope that helped

AABC is rotated 90° clockwise to create AA'B'C'. Which of the following transformations would also map B to B'?
Select all that apply.
r (x, y) + (x – 6,y)
= 270º counterclockwise rotation
reflection over the r - axis
(x,y) → (2x, 2y)
r reflection over the y -axis
90° counterclockwise rotation

Answers

Answer:

the 3rd and 5th one

Step-by-step explanation:

What is the reason that absolute value is always written as a positive?
Absolute Value is talking about numbers so it must be positive
Absolute Value is like a clock it has only positive numbers
Absolute value does not always have to be positive
Absolute value is talking about distance (Distance from zero); distance is always
measured by positive numbers.

Answers

Answer:

Absolute value is talking about distance (Distance from zero); distance is always measured by positive numbers.

A certain comet near the sun moved through space at a rate of 701, 208 kilometers per hour. What is this number in word form?
Seven hundred one thousand, two hundred eight
Seven hundred ten thousand, twenty-eight
Seven hundred one thousand, twenty-eight
Seven hundred ten thousand, two hundred eight

Answers

Seven hundred one thousand, two hundred eight

701,208 is in word form is Seven hundred one thousand, two hundred eight

What is Number system?

A number system is defined as a system of writing to express numbers.

Given that A certain comet near the sun moved through space at a rate of 701, 208 kilometers per hour

We need to write the number in sentence form

In the given number 8 is at units place

0 at tens place

2 is at hundred place

1 is at thousand place

0 is at ten thousand place

7 is at hundred thousand place

701, 208 is Seven hundred one thousand, two hundred eight

Hence, 701,208 is in word form is Seven hundred one thousand, two hundred eight

To learn more on Number system click:

https://brainly.com/question/22046046

#SPJ2

for what value of the variable the value of the expression 4(5x-8) is 4 more than the value of the expression 2(4-x)

Answers

Answer:

For x=2, the expression 4(5x-8) will be 4 more than the expression 2(4-x)

Step-by-step explanation:

Given expressions are;

4(5x-8) and 2(4-x)

For 4 more than the second expression, we will add 4 with second expression.

4(5x-8) = 2(4-x) + 4

20x - 32 = 8 -2x +4

20x + 2x = 12 + 32

22x = 44

Dividing both sides by 22

[tex]\frac{22x}{22}=\frac{44}{22}\\x=2[/tex]

Hence,

For x=2, the expression 4(5x-8) will be 4 more than the expression 2(4-x)

It takes Chris 6.5 hours to drive 455 miles. If he travels at the same rate, how long will it take him to drive 2100 miles?

Answers

First let’s divided 455 by 6.5 to figure out how far he travels in 1 hour which is equal to 70, now let’s do 2100 divided by 70, it will take 30 hours for him to drive 2100 miles.

What is the highest 7th grade math class you can take?

Answers

Answer:

honors

Step-by-step explanation:

Express as a trinomial.
(3x - 1)(2x - 10)

Answers

Answer:

6x^2 - 32x + 10

Step-by-step explanation:

I used the FOIL method of factoring. Hope this helps!

3x • 2x = 6x^2
3x • (-10) = -30x
2x •(-1) = -2x
-1 • (-10) = 10

Combine Like Terms:

6x^2-30x-2x+10

Simplify:

6x^2-32x+10

12p+ 15 - 13 - 12p

And show me how you got the answer

Answers

Answer:

2

Step-by-step explanation:

According to me, you would just have to combine like terms and simplify them as much as possible.

12p + 15 - 13 - 12p

12p - 12p + 15 - 13

0 + 15 - 13

0 + 2

2

Hope this helps :D

what equation is used to find the vertex form of a parabola with the vertex (h, k)?

Answers

Answer:

y=a[tex](x-h)^{2}[/tex]+h

Step-by-step explanation:

equation for vertex form of a parabola is,

y=a[tex](x-h)^{2}[/tex]+h

Answer:

y=a+h

Step-by-step explanation:

Fill in the circle with the correct inequality statement. - 1.5O - 1.3 AIV

Answers

Answer:

ohh hiii and I dob5 understand that -

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