Mathematics Middle School

Helppppppppppp. Pleaseeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer 1

Answer:

Step-by-step explanation:

form a proportion

12/2=42/x

cross multiply

12x=84

x=7

Related Questions

Find the surface area of the square pyramid.

The surface area is square inches.

Answers

Answer:

12in

Step-by-step explanation:

Answer:

area of the square pyramid=a²+2al

=5²+(2×5×7)

=25+70

=95in²

PLS help ASAP this really urgent

Answers

Answer:

Skewed right.

Step-by-step explanation:

The graph is not symmetric because it's not an exact mirror of each side if you drew a line in the center. If the graph has highpoints on the left side and is leaning down to the right, it's skewed right. Same thing vice versa.

Skewed right. I just had this question.

can somebody please help me and explain a little bit? :(

Answers

Median: number in middle
Arrange in lowest to highest
1, 2, 3, 3, 4, 6, 7, 8
Cross out numbers until you reach the middle two
3 and 4, what’s between them?

Solution: 3.5

The median is the middle number in a set of numbers.
For this set of numbers, the median would either be 7 or 1 because the set of numbers is uneven

Alex is setting up an in-line skating course 21 feet long to practice weaving around cones. He wants a cone every 3 1/2 feet. How many cones does he need?

Answers

Answer:

I think it is 6 cones

Step-by-step explanation:

21 ÷ 3.5 = 6

Which box-and-whisker plot shows the high temperatures in Pittsburgh, Pennsylvania during the first two weeks of March: 33, 45, 42, 47, 35, 45, 41, 34, 44, 34, 48, 40, 43, 45

Answers

there is no picture so i am not sure what to tell u

So far this semester, Warren is averaging a score of 72 points on math tests, which is 20% lower than his average last semester. What was the average of his scores last semester?

Answers

Answer:

86.4

Step-by-step explanation:

72x.20= 14.4

72+14.4=86.4

I'm pretty sure this is right

86.4
You have to multiply .20 and 72. which equals 14.4. it was 20% lower so u have to add the 14.4 to the 72 which equals 86.4

will give branliest

how do i Translate a algebraic expression into verbal expression?

Answers

Answer:

I guess try to understand it first

Step-by-step explanation:

How to pronounce y = x^2 / 2^3 + 0.423x

Y is equal to x squared divided by two to the third power plus zero and 4 hundred twenty three thousandths times x

A cylinder has a volume of 24 cubic feet. Which of the following could have the same radius and height as the cylinder?

A. A cone with a volume of 72 cubic feet
B. A cone with a volume of 32 cubic feet
C. A sphere with a volume of 18 cubic feet
D. A cone with a volume of 8 cubic feet

Answers

DO NOT OPEN THAT FILE THEY COULD BE TRYING TO HACK YOU, i've seen them send it to a lot of ppl

need help with this one question

Answers

Answer:

71.6599

Step-by-step explanation:

I think if I’m wrong please tell me

wich ik I’m probably wrong

4/9 kilogram of baking soda costs $2. How much does 1 kilogram of baking soda cost?

please drop an explanation, and equation thanks!

Answers

Ok so we want to cross multiply.
To do this you know 4/9=2$ so now you want to know 1=x$
When you do this you get $5

Answer:

1 kg of baking soda costs $4.50.

Step-by-step explanation:

Write and solve an equation of ratios, as follows:

4/9 kg $2

------------- = --------------

1 kg x

Multiplying both numerators by 9, we get:

4 kg $18

------------ = ---------

1 kg x

Cross-multiplying, we get 4x kg = $18-kg. Solving for x, we get:

$18-kg

x = -------------- = $4.50

4kg

1 kg of baking soda costs $4.50.

How are convection currents in the mantle (geosphere) and in the oceans (hydrosphere) similar? Or how are they different. Explain one of the two or how their similar and different. Thanks :)
I give brainliest to whichever makes the most sense

Answers

Answer:

They are different because in the mantle, the magma is heated, it becomes less dense and rises. It give off it's thermal energy and cools down, becoming more dense and descend to be heated again.

In the ocean, the tropics warm the water and it travels to the poles to cool down, then returns to the tropics to heat up again.

they are similar in the ways that they move and create energy.

different because

Create an expression that is equivalent to 7x + 4x + x, using the fewest terms

Answers

12x cause 4+7+1 equals 12 so 12x

The answer is
11x+x
Because if you add 7x+4x it makes 11x and we can’t add the other variable

Pepino’s pizza charges $8 for medium pizza plus $2 for each topping. How many toppings are on a medium pizza that costs $20?

Answers

Answer:

6 toppings

Step-by-step explanation:

Find how much the toppings cost in total without the medium pizza.

20 - 8 = 12

12 ÷ 2 = 6 toppings

There would be 6 toppings on the medium pizza.

I DONNT UNDDERSTAND THIS AT ALL

Answers

Answer:

Here's exactly what I would write:

a = Sandy cupcakes, b= Sandy gummy bears, c = Sandy brownies, d = Nina cupcakes, e = Nina gummy bears, f = Nina brownies

a = 4d

b = 3e

c = 2f

Expression for Sandy: 4d + 3e + 2f

Expression for Sandy and Nina: 5d + 4e + 2f

Step-by-step explanation:

This is a terrible question that makes people feel frustrated. I'm sorry.

a = Sandy cupcakes, b= Sandy gummy bears, c = Sandy brownies,

d = Nina cupcakes, e = Nina gummy bears, f = Nina brownies

Sandy has 4 times the number of cupcakes as Nina: a = 4d

Sandy has 3 times the number of gummy bears as Nina: b = 3e

Sandy has 2 times the number of brownies as Nina: c = 2f

An expression for how many desserts Sandy is bringing: a + b + c

An expression that could be used for how many desserts Sandy and Nina are bringing together: a + b + c + d + e + f, but I think they want you to substitute the equivalent values like above (a = 4d)

Sandy: 4d + 3e + 2f

Sandy and Nina: 5d + 4e + 2f

because 4d + 3e + 2f + d + e + f = 5d + 4e + 2f

I'm sorry I don't have a simpler way to explain this. It's a painful question. I will answer any questions you have.

Wow yes his answer is more than right thank you so much you also helped me out

The table below gives the price for different numbers of burgers. Do the numbers in the table represent a proportional relationship?

Answers

yes it does.
18/6=21/7=24/8=27/9= 3

How can I add ¾? Explain.

Answers

Answer:

Step-by-step explanation:

you can do many things to add 3/4, most common way si thinking of 3/4 3 quarters of your number

you can add 3/4 to 1 which is 1 3/4

1+3/4=1 3/4

or,

you could do

3/4 OF 10 is 3 quarters of 10 which is 2.5x3 or 10 -2.5 which equals,

7.5

Answer:

You can add 3/4 by adding as a decimal so 3/4 of 100 is 75 so it would be .75

Step-by-step explanation:

The taillight of a car is in the shape of a kite whose diagonals are both 15 centimeters. How many square centimeters does the kite occupy?

30
56.25
112.5
225

Answers

The answer is 30
Have a great day!!

Erik transformed the equation y = 2(x − 2)^2 + 5 from vertex form to standard form. His steps are shown below. Is Erik's work correct? If not, identify and correct his error.
y = 2(x − 2)^2 + 5
y = 2(x^2 − 4x + 4) + 5
y = 2x^2 − 8x + 8 + 5
y = 2x^2 − 8x + 13
A. No. The error is in the second line: the expanded form of (x − 2)^2 is x^2 − 4.
B. No. The error is in the third line: the product of 2 and x^2 − 4x + 4 is 2x^2 − 4x + 4.
C. No. The error is in the fourth line: the sum of 8 and 5 is 12.
D. Yes. Erik is correct in his transformation from vertex form to standard form.

Answers

It's A or B try using mathpapa it really helps :)

I think the answer is letter B

50 males liked the veggie burger and 40 males liked the pizza so out of 90 males what percent liked the burgers?

Answers

Answer: 10%?????????????????????

Step-by-step explanation:

If it’s asking percent of males that like veggie burgers then 44.44%

40 out of 90 converted into a fraction would be 44.44%

PLS PLS PLS HELP help !!!

Answers

i don’t know what 3 and 4 is but
5. -34
6. 8
7. -9/11

Brainiest if correct

Answers

x=14
3 times 14 is 42-13 is 29

X=14 that’s the answer I’m not sure tho

Simplify write without the absoulute value.

|x-(-12)|, if x<-12

Answers

Answer: Hello! The Answer is 0 without the absolute value! Your Welcome! Mark me as Brainliest! :)

Step-by-step explanation:

The answer is 0 .......

Plz help: what is the probability?
Rolling a number that is less than three 5 times in a row on a number cube labeled 1 through 6

Answers

Answer:

whats the options

Answer:

well to me it would be a half and half deal so you might and you might not..

Step-by-step explanation:

Ok so I have been trying to figure this answer out but I CANT SO PLZZZZZ HELP AND NO LINKS!!!

Graph the following inequalities on a number line.
X ≥ -4

Answers

x is greater then -4 because x is just one

On a number line draw a closed circle on -4 then draw a line from it facing right

Closed circle is greater/less than or equal then the line shows if x could be doing higher or lower number

tysm 30 points!! pls answer correctly

Answers

Answer:

The answer is 4 trust me i'm in high school.

Step-by-step explanation:

Plzz mark brainliest

no one get the answer right so i will repost this again

Answers

Answer: the rectangle is 5 and the other one is i think 135

Step-by-step explanation:

rectangle is 5, not sure about the other inw

If you answer all these questions for me correctly, you'll get extra points on brainly!

Answers

we cant see the questions its blurry 2456

It’s really blurry.
Post a clear picture please .....

Answer this question ASAP please and thank you.

Answers

Answer:

For the door, it is 2.

Step-by-step explanation:

For the door I believe it’s two

A quadrilateral has the following coordinates:

Point A: (4, 7)
Point B: (–4, 7)
Point C: (–4, –7)
Point D: (4, –7)

What is the length of side CD?

Answers

Answer:

Step-by-step explanation:

Please help me and can you write an explanation too please.

Answers

Answer:

[tex]\Huge\boxed{x=29}[/tex]

Step-by-step explanation:

Hello There!

Once again the angles shown are supplementary angles meaning that the sum of the measure is equal to 180

so we use this equation to solve for x

180 = x + 4x + 35

step 1 combine like terms

x + 4x = 5x

now we have 180=5x+35

step 2 subtract 35 from each side

180 - 35 = 145

35 -35 cancels out

now we have 145 = 5x

step 3 divide each side by 5

5x/5=x

145/5=29

we're left with x = 29

Answer:

(×+35)+4×=180°[sum of angles in a str. line ]

5×=180-35

5×=145

5x/5=145/5

x=29

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