HELP!!! pre-algebra is the worst i need help with this ASAP! please!

Answer:

81

Step-by-step explanation:

it can be expressed as a product of two smaller numbers 9×9

Answer: 30:12

Step-by-step explanation: 5x6= 30 and 2x6=12

Hope this helps!

Answer:

38

Step-by-step explanation:

4 + 34, 4 + 34, 20 + 18

38, 38, 38

Answer:

1) 68+28 = 96 cards

2) 278.32 - 3698 is a question that gives a negative answer

   We rewrite as;

    278.32

-  3698,00 =  see 78.32 - 98.00 turns to -19.68 and 200 - 3600 = -3400

 -  3400 -+19.68 = -  3419.68

We add the last bit as it is the remainder of 3400 if done separately.

2b) With adding both numbers  278..32 + 3698 = 3976.32

Question:- 22% of 150

Answer:-

[tex]22\% \: of \: 150[/tex]

In maths of means multiplication

[tex] \frac{22}{100} \times 150 \\ \frac{ \cancel{22}^{ \: \: \tiny{11}} }{ \cancel{100} {}^{\tiny{ \: \: 50}}} \times 150 \\ \frac{11}{ \cancel{50}^{ \: \: 1} } \times \cancel{150}^{ \: \: 3} \\ 11 \times 3 = 33[/tex]

Correct options is (D) 33

The value of 22 percentage of 150 is 33, option D is correct.

To find 22% of 150, we need to convert the percentage to a decimal and then multiply the result with 100.

Convert the percentage to a decimal.

To convert a percentage to a decimal, you divide it by 100.

In this case, 22% as a decimal:

= 22 ÷ 100

The result is 0.22.

= 0.22

Multiply the decimal by the number (150) you want to find the percentage of.

In this case, 0.22 (the decimal equivalent of 22%) multiplied by 150:

=150×0.22

=33

Therefore, the value of 22% of 150 is equal to 33. option D is correct.

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Answer:

C

Step-by-step explanation:

Answer:

Mary

Step-by-step explanation:

Mary paid less for one bracelet. Tell me if I was wrong!

Answer:

8.4 × 10^6

Step-by-step explanation:

Use floating-point system in which numbers are expressed as products consisting of a number between 1 and 10 multiplied by an appropriate power of 10 (as in 1.591 × 10−20)

Hope this helps <3

Answer:

The correct scientific notation form of the given numeral using only 2 significant figures is 8.4×10⁶.

8.4×10⁶ is the right answer

Step-by-step explanation:

→We can move the decimal point 6 units towards the left to get the number.

→Then we can multiply the number by 10 to the power 6 to get the required answer.

Answer:

I'm tried of smiling for others and holding all their problems

Answer:

C. Exactly one quadrilateral exists with the given conditions, and it must be a rhombus.

Step-by-step explanation:

Rectangular

Has 4 sides that are the same length

Has 4 angles of 90 degrees

Has 4 axes of rotation and folding symmetry

꧁༺62ᴅᴏᴄ༻꧂

Answer:

x<-7

Step-by-step explanation:

4 − (x + 2) < −3(x + 4)

4 − x - 2< −3x - 12

14 < - 2x

x<-7

Answer and Step-by-step explanation:

First, we need to solve both sides of the equation.

Distribute the negative to the x and the 2.

4 - x - 2 < -3(x + 4)

Distribute the -3 to the x and the 4.

4 - x - 2 < -3x - 12

Combine like terms.

2 - x < -3x - 12

Add 12 to both sides of the equation.

12 + 2 - x < -3x - 12 + 12

14 - x < -3x

Add x to both sides of the equation.

14 - x + x < -3x + x

14 < -2x

*Divide both sides of the equation by -2, and flip the sign.

-7 > x

-7 > x is the answer.

*How this works:

When we flip the sign, we really are just saving ourselves an extra step when dividing numbers (that are negative, only works when number is negative).

14 < -2x

If we were to add to x, and subtract 14, it will look like this:

2x < -14

Then when we divide by 2, we get:

x < -7

This is the same result, but it takes an extra step. Use this way if you forget why you need to flip the sign when dividing by a negative number.

#teamtrees #PAW (Plant And Water)

I hope this helps!

Answer: x+5/8 = 1 is the equation where x is the remaining coffee.

Step-by-step explanation:

he drank = 5/8

whole coffee = 1

so

let coffee remaining be x

1-5/8 = x

x+5/8 = 1

The required equation, for the remaining cup of coffee, is x = 1+(- 5/8).

To determine the addition equation of coffee remaining in the cup, for the condition Kelly bought a cup of coffee and drank 5/8 it.

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
Let the coffee remaining in the cup be x,
Now, according to the question,
1 = x + 5/8
x = 1 - 5/8
For the addition equation,
x = 1 +(-5/8)

Thus, the required equation, for the remaining cup of coffee, is x = 1+(- 5/8).

Learn more about arithmetic here:

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Step-by-step explanation:

you'll use the previous date t fine the difference ex. if yesterday was 80 degrees and today's is 84 the difference would be 4 degrees. hope this helps a bit ( I'm pretty sure this is correct also remember if you need ask teacher for help!!)

Answer:

Step-by-step explanation:

Basically you have to look at the forecast each day and find the lowest and highest tempreature that day and find the difference and subract the two numbers of the tempreature.

Answer:

your answer would be 7285.63

Having two periods means it has two groups of digits separated by a comma.

6 digits would be xxx,xxx

An 8 worth 80 means the 8 is in the tens place.

And you have a 2 in the hundreds place.

All other digits can be any number.

Answer: 543,280

Answer:

Irrational

Step-by-step explanation:

Because irrational numbers are defined as a subset of real numbers, all irrational numbers must be real numbers.

Answer:

a) -99

b) -12

c) -105

d) -46

Answer:

a) | -81 - 17 | = 98

b) | 8 - 20 | = 12

c) | -76 - 25 | = 101

d) | -91 + 45 | = 46

Remember, absolute value describes the distance from zero that a number is on the number line, without considering direction. The absolute value of a number is never negative.

Hope this helps! :)

Answer:

7

Step-by-step explanation:

3/5(t+18)  = -3(2-t)                   Distribute

3/5t + 10 4/5 = -6 + 3t            Subtract 3/5t in both sides

10 4/5 = -6 + 2 2/5t                Add 6 on both sides

16 4/5 = 2 2/5t                       Divide

t = 7

Answer:

Silurian

Triassic

Jurassic

Tertiary

Step-by-step explanation:

i hope its right

Answer:

4

Step-by-step explanation:

they're the same triangle, but one is bigger. the 2,5 and 5 sides are equivalent, so with that we are able to know the big triangle is exactly 2x bigger. u multiply the 2 side (because it's equivalent to the x side) by 2 (bc the triangle is 2 times bigger) and you get 4 = x

Answer:

a) -10

b) 144

c) 18

d) 42

Hope this helps! :)

Answer:

1)(-10)

2)144

3)18

4)42

Step-by-step explanation:

                        B-Brackets

                        O-Of

                        D-Divide

                        M-Multiplication

                        A-Addition

                        S-Subraction

1)-12-2(-3)-4  

 -12+6-4

 -6-4

  -10

2)63+[tex]9^{2}[/tex]

  63+81

    144

3)2*7+20/5

  14+20/5

  14+4

    18

4)37+20/4

   37+5

     42

Answer:

answer in picture. hope it helps

Answer:

8) a) -22 b) 21 c) 1 d) -35

9) a) 28 b) 59 c) -143 d) -104

The step-by-step solution is attached.

Step-by-step explanation:

a) is really easy, right ?

the surface area consists of 6 rectangles (as you know, every die has 6 sides). they are 3 pairs of equally sized rectangles.

there are 2 rectangles 7×1, 2 rectangles 7×2, and 2 rectangles 2×1

SA = 2×7×1 + 2×7×2 + 2×2×1 = 14 + 28 + 4 = 46 in²

the volume is just length×width×height

V = 7×2×1 = 14 in³

b)

a little bit more difficult, but with a little trick just as easy.

the surface area consists of the 2 circle areas and the mantle "coating".

the area of a circle is pi×r².

we have to be careful as the given 10 ft is the diameter of these circles. the radius is half of it : 5 ft.

the area of the "mantle" we can calculate by imagining we simply slice it open with one straight line from top to bottom. and then we cut it off the two circles and put it flat on the table.

now we see it is just a rectangle. one side is 12ft. the other is the circumference of the previously attached circles.

circumference of a circle is 2×pi×r

so the surface area is 2×circle + (circumference circle)×12

SA = 2×pi×5² + (2×pi×5)×12 = 50pi + 120pi = 170pi =

≈ 534.07 ft²

the volume is one base area (circle) times height

V = pi×5²×12 = 300pi ≈ 942.48 ft³

Answer:

The savings were changed by $88

Step-by-step explanation:

1 backpack costs 8 dollars and they bought 8 of them, you have to multiply 8 dollars by 8 cause there is 8 backpacks which is 64 , pen and pencils for 1 backpack costs 3 dollars , so you have to multiply 3 by 8  cause there are 8 backpacks which is 24. then you add 64 and 24 which is 88

Answer:

yes. because the price is 3 times the number of pens

Step-by-step explanation:

2*3=6

4*3=12

5*3=15

8*3=24