PRACTICE PROBLEM

Find the area of the parallelogram


_____ Square units


KHAN ACADEMY

Answer:        

8 ounces of 20%12 ounces of 70%

Step-by-step explanation:

Let 'x' be the number of ounces of 20% solution'y' be for the 70%

solutionSince the the mix is 50% of 20 ounces then:x + y = 200.20x +

0.70y = 0.50(20)From the 1st equation solve for xx = 20 - ySubstitute it to

the 2nd equation0.2(20-y) + 0.7y = 104 - 0.2y + 0.7y = 100.5y = 10-40.5y =

6y = 12Substitute to x = 20 - yx = 20 - 12x = 8

Answer:

497

Step-by-step explanation:

(I want the points) You split the shape into two you know how to solve.

Answer:

63cm/m²

Step-by-step explanation:

(12+3×12+3)-12x12-3x3x2

=225-144-18

=63

Answer:

#11-13: 118 , 97 , 62

#7-10: 92 , 125 , 56 , 130

Step-by-step explanation:

#11. Supplementary angles (A + B = 180)

#12. Supplementary angles

#13. Congruent angles (A = B)

#7. Congruent angles

#8. Congruent angles

#9. Congruent angles

#10. Congruent angles

I hope this helps!

Answer:

Part 1: 300

Part 2: Refer to Step-by-step explanation.

Step-by-step explanation:

Part 1: Triples means multiplying by three, and percent means over 100. 300% means tripling.

300%

Part 2: I'm not sure what the problem means, but if it means the original price, then it is c/3 or 1/3c. If it is referring to the resale price, then it is 300%c or 3c.

Answer:

incorrect, correct answer is 4√2

Step-by-step explanation:

When you remove the square root You will have to remove them completely. so that the inside of the square root cannot be removed any more numbers (I'm not good at English but I hope u understand what I want u to know :)))

√32 = √2×2×2×2×2

Match 2 identical numbers one at a time and bring them out. ;

√32 = 2×2√2

√32 = 4√2 correct answer!

find you If you want to check if your square root removal is correct or not. Multiply the answer you have given by itself, for example:

4√2 × 4√2 = 16×√4 = 16×2 = 32 correct!

hope it helps you <3

She had taken 2 outside without consideration of square root. And the correct value of √32 is 4√2.

If the value of a numerical expression is terminating then they are the rational number then they are called the rational number and if the value of a numerical expression is non-terminating then they are called an irrational number.

Jaclyn estimates the square root of 32 in the following way:

√32 = 2√16 = 2 ∗ 4 = 8

a)  She had taken 2 outside without consideration of square root.

b)  The √32 is correctly solved below.

[tex]\sqrt{32} = \sqrt{2*2*2*2*2} = 2*2*\sqrt2=4\sqrt2[/tex]

Then the correct value of √32 is 4√2.

More about the irrational number link is given below.

https://brainly.com/question/9466779

Answer:

c

Step-by-step explanation:

The surface area of the square pyramid is 1040 ft² in the given figure.

The total surface area of the given pyramid can be expressed as:

Surface area of a square pyramid = A + (1/2) p × s

where A is the base area, p is the perimeter of the base, and s is the slant height

As per the question, we have

length (l) = 20 ft

base perimeter (p) = 4l = 4 × 20 = 80 ft

base area (A) = l² = 20² = 400 ft²

slant height (s) = 16 ft

Substitute the values in the formula for surface area:

Surface area = 400 + 1/2 × 80 × 16

Surface area = 400 + 1280/2

Surface area = 400 + 640

Surface area = 1040 ft²

Thus, the surface area of the square pyramid is 1040 ft².

Learn more about the surface area of the prism here:

https://brainly.com/question/28016184

#SPJ3

Answer:

a. the first and last one

b. the second and third one

Step-by-step explanation:

a. 11x-3x-10x=18x, so the first one is definitely the answer. If you look at the last one, you can see that 10x+8x also equals 18x. The other options do not equal 18x, so those can be eliminated.

b. If you distribute the 3 outside of the parentheses, you can see that the expression 3(1+3y) equals 3+9y (because 3*1=3 and 3*3y=9y). So, the third one can be determined to be one of the answers. We can see that the second one also simplifies to be 3+9y, so this one can also be determined to be the answer. The other ones can be eliminated because they do not equal 3+9y.

Hope this helped! :)

Answer:

a) 18x and 8x + 10x

b) 3 × 1 + 3 × 3y and 3 + 9y

Step-by-step explanation:

11x - 3x = 8x and then 8x + 10x is left. The answers are 18x and 8x + 10x.

3 × 1 is 3 and 3y × 3 is 9y.

Hello!

Let's simplify this expression!

we have

7²+3(√16-4)

7²=49:

49+3(4-4)

49+3(0)

49+0

49

[tex]\huge\boxed{\boxed{\mathfrak{\star{Answer:{49}}}}}[/tex]

Hope everything is clear.

Let me know if you have any questions!

#KeepLearningWithJoy :-)

Answer:

[tex]\boxed{\sf{49}}[/tex]

Step-by-step explanation:

In order to solve this problem, you must use an order of operations to determine the value of expressions.

PEMDAS stands for:

Solve with exponents first.

7²+3(√16-4)

7²=7*7=49

3(√16-4)=0

Then, add.

49+0=49

49

Therefore, the correct answer is 49.

I hope this helps you! Let me know if my answer is wrong or not.

Answer:A 3-2-1 prompt helps students structure their responses to a text, film, or lesson by asking them to describe three takeaways, two questions, and one thing they enjoyed. It provides an easy way for teachers to check for understanding and to gauge students' interest in a topic.

Step-by-step explanation:

Answer: there is over 100 different ways to make one

Step-by-step explanation:

Answer:3,712÷64=58

Step-by-step explanation:

Answer: The ratio is 58:1, and the division is = 58. Scroll for solving, check, and notes.

What we know:

How to solve:

    We need to find the equivalent ratio of 3,712 and 64, and then solve the question based on that.

Finding equivalent ratios

Set up equation                                                     3712/64

Rewrite into colon-ratio form                                3712:64

Divide by common denominator                         /64  /64*

Solution:                                                                     =58:1

*Read bottom of notes to find out how I found this denominator

Notes:

There is no way to always know the ratio's common denominator. However, there are some general rules of thumb that may help:

-All numbers have a common denominator of 1. Sometimes, that's the most simplified form.

-All even numbers (Those that end in {0, 2, 4, 6, or 8}) have a common denominator of 2

-All numbers whose digits add up to {3, 6, or 9} (such as 12: 1+2 = 3) have a common denominator of 3.

-These three numbers serve as basic building blocks. You can keep simplifying with them until you get to a prime number. Let's use our problem as an example:

3712 and 64 - both are even, simplify by 2

1856 and 32 - both are even, simplify by 2

928 and 16   - both are even, simplify by 2

464 and 8    - both are even, simplify by 2

232 and 4    - both are even, simplify by 2

116 and 2      - both are even, simplify by 2

58 and 1       - there is a prime number, so this is the simplest form.

Now we take all of our simplifications: 2^6. 2^6 = 64, so the common denominator is 64.

Check:

Our ratio, 58:1, is the simplified form of 3,712 div. 64. This is seen better by rewriting both into a fraction-ratio form:

58:1                    3712 div. 64

58/1                    3712/64

Luckily, our ratio has a 1 in it. This means that when we multiply the ratio by 64 (what the 1 represents), it should yield the original equation.

3712/64 = 58/1

3712/64 = (58/1)*64

3712/64 = 3712/64

Therefore, 58:1 is the correct ratio.

Answer: 4 in.

Multiply 2*2 = 4

Your answer is 4 in.

Hope this helps! :)

Brainliest please.

=========================================================

In order to find the diameter, we need to multiply the radius times 2, because the radius is one half ([tex]\displaystyle\frac{1}{2} }[/tex]) of the diameter.

We are given that the radius is:-

[tex]\bigstar{2~in}[/tex]

Multiply it times 2:-

[tex]\bigstar{4~in}[/tex]

Hence, the diameter is equal to:-

[tex]\bigstar{{\boxed{\pmb{4~ inches}}[/tex]

[Enter 4]

diameter: [tex]\boxed{4}[/tex] in.

===============================================================

Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)

Answer:

A.) x/6 = 31/28

Step-by-step explanation:

x = Actual height of Julian

x/6 = 31/28

As 31 is the actual height of the building, you're comparing those.

question a is divide. 48 divided by -8 is -6.

question b is divide. -40 divided by 8 is -5.

question c is subtract. The negative sign on the 2 and the minus symbol cancel out.

question d is add. If you put a minus sign, the signs would cancel out and become addition.

question e is add. If you put a minus sign, the signs would cancel out and become addition.

question f is multiply. Half of 22 is 11 and the 0.5 is negative.

Answer:

-6x - 1

Step-by-step explanation:

-3(x + 1) - (3x -2)

= -3x - 3 - 3x + 2

= -3x - 3x - 3 + 2

= -6x - 3 + 2

= -6x - 1

Answer:Multiplication and division both need to have a common denominator or else you would get an incorrect answer. Dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second fraction. The first step to dividing fractions is to find the reciprocal (reverse the numerator and denominator) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators."

Hii

Yes! They are indeed related.  When dividing fractions, we need multiplication. Say, for example. We need to multiply the reciprocal of the second fraction to the first.  So. If we needed to answer a question like "2/4  divided by 1/2" We would need to find a common denominator. We find common denominators by multiplication. We can do this 2 ways. See below.

Then we would need to divide 2 and 1.

Simplify.

Simplified you'd get 1/4.

(tip, once the numerator hits 1, you can no longer simplify)

Hope this helps!

Please give brainliest.

Answer:

C

Step-by-step explanation:

Step-by-step explanation:

Area is Base x Height right?

so, the base of the triangle would be 90 ft and the height would be 90 ft!

So 90 x 90 = 8,100 ft!!

This is how I think, so it may be wrong, but this is how I do it!

answer:

a=1/2×b×h

a=1/2x90×90

a=45×90

a=4,050 ft.

in simpler terms....

90×90=8100

this is the area of the ENTIRE FIELD so to find half divide by two 8100÷2=4,050.

4,050 ft.

GOOD LUCK!!!

Answer:

The answer to number 4 would be 576cm^3

Step-by-step explanation:

Number 4:

The formula for volume would be V=B·h

to find B your going to find the base of the triangle which would be B=1/2·8·9 so B=36

Then you find the height which is 16 because it connects the two bases of the triangular prism

Next you multiply B·h so 36·16

Lastly, add your units and cube the number because you are foinding volume.

Answer:

mass of empty basket: 1.21 kg

Explanation:

the mass of basket is constant. Let the mass of basket be "b" and mass of each balls be "m"

Make equations:

solve them simultaneously,

mass of basket,

Now

So

So

Answer:

600=10f+200

Step-by-step explanation:

since $600 is the target, and the faculty already donated 200 dollars 200 would be the y intercept. since f is the amount of money that the clubs should raise, we can set that as 10 f since there are 10 clubs and since it needs to be inequality, it would be written in the y = mx + b format. hope this helps!

4.44/37= 0.12

1.80/15= 0.12

3.12/26= 0.12

3.60/30= 0.12

2.16/18= 0.12

1. She donates 12% of her income to charity

2. The quantity, d, would be the better choice for the dependent variable (y) the cost of the donation, depends on her income, if her income increases, the amount donated would increase.

3. d = 0.12m

(my apologize if this is incorrect)

Answer:

Step-by-step explanation:

Answer:

i think that the answer is b

Step-by-step explanation:

Answer:b not 100% sure tell me if I’m wrong

Step-by-step explanation:

Answer:

(x+13)/-7 = -4

Step-by-step explanation: ? or 15 if thats an answer

Answer:

As you can see, −12 is an integer

Step-by-step explanation:

Hope this helps and sry if I'm wrong

Answer: the correct answer my friend is a intengers because intengers could be either positive or negative.

Step-by-step explanation: for example -1, -6, -2, -10, 9 etc could be intengers. Irrational numbers could be root 6  pi also. Whole numbers are just 0, 1, 2, 3 etc. Natural numbers are 1,2,3,4,5,6. so hopefully a is the correct answer