Mathematics Middle School

If a trapezoid has an area of 21 cm and a height of 6cm, what are its bases?

Answers

Answer 1

Answer:

Its base is 7

Step-by-step explanation:

6 x 7 = 42

42 ÷ 2 = 21

The base is 7

Related Questions

A small zoo is being designed
on 2/3 of an acre of land. The
designers plan to have 30
different animal areas. How
much land will each animal area
have?

Answers

ANSWER:

1/45 of the acre

EXPLANATION:

2/3 divided by 30 is also (2/3)(1/30)

it would be 2/90 which simplifies to 1/45

Plzzz help hurry zoom in to see!?!!

Answers

Answer:

point U

Step-by-step explanation:

Answer:

It's point U

Step-by-step explanation:

Jack's father is 3 times older than jack. 5 years ago the sum of their ages was 34. How old is jack's father now?
PLS HELP ASAP!!!!

Answers

Answer:

11. Jack is 11

Step-by-step explanation:

he is 11 years old. ........

here's an algebra question I need help with... (I'm not sure if I selected the right answer)

Answers

Answer: You selected the correct one

Step-by-step explanation:

I beleive this is right, qoute me on this!!!

You’re right on this one

Peter babysits his sister on Monday and Friday. He babysits for his neighbor 40% of the days Monday through Friday. He babysits for his sister and his neighbor on different days. On the weekend, Peter babysits 50% of the days. How many days does Peter babysit each week?

Answers

Answer:

3 days.

Step-by-step explanation:

x/5=40/100

Find x

200/100=2 days

x/2=50/100

Find x

100/100=1 day

1+2= 3 days.

Plzz help hurry!!!!!!

Answers

Answer:

(-1,-2.5)

Step-by-step explanation:

-3z - (3z - 2) = 4(z + 3)
Can someone please tell me what to do step by step Pleaseee

Answers

Answer:

z = -1

Explanation:

-3z - (3z - 2) = 4(z + 3)

Expand -3z - (3z - 2): -6z + 2

Expand 4(z + 3): 4z + 12

-6z + 2 = 4z + 12

Subtract 2 from both sides

-6z + 2 - 2 = 4z + 12 - 2

Simplify

-6z = 4z + 10

Subtract 4z from both sides

-6z - 4z = 4z + 10 - 4z

Simplify

-10z = 10

Divide both sides by -10

-10z / -10 = 10 / -10

Simplify

z = -1

- zyxx

yes that's correct^

What is the other dimension of the rectangular cross section that is perpendicular to the base (the face that is shaded) and passes through the midpoints of the 10 cm edges?

________ centimeters by 18 centimeters

A rectangular prism with length of 10 centimeters, width of 8 centimeters, and height of 18 centimeters.
2
8
10
18

Answers

I think the answer is ten centimeters because not only is it in the question but it also makes the equation make sense.

___10_____ centimeters by 18 centimeters

What is a Rectangle?

A parallelogram all of whose angles are right angles especially : one with adjacent sides of unequal length.

How to determine?

We have,

A rectangular prism with length of 10 centimeters, width of 8 centimeters, and height of 18 centimeters.

The other dimension of the rectangular cross section that is perpendicular to the base (the face that is shaded) and passes through the midpoints of the 10 cm edges are ___10_____ centimeters by 18 centimeters.

Learn more about Rectangles:

https://brainly.com/question/25292087

#SPJ2

BRAINLIEST INCLUDED!!!! Elena went to a sporting goods store that was having a sale. She bought a tennis racket and 3 cans of tennis balls. The tennis racket normally costs $43. All tennis rackets are marked down 15%. One can of tennis balls normally costs $4. The tennis balls are not marked down. The sales tax rate is 8.5% How much will she pay for everything, including tax?

Answers

Answer:

She will pay $52.68, including taxes

Step-by-step explanation:

One can of tennis ball is $4 and there are no discount on it. Elena bought 3 cans, so:

can = 3 x 4 = 12

One tennis racket is $43 but it has a discount of 15%:

discount = 0.15 x 43 = 6.45

total racket = 43 - 6.45 = 36.55

Elena will have to pay:

pay = 12 + 36.55 = 48.55

She will also have to pay taxes, which are 8.5% over the price she paid:

pay + tax = 48.55 x 0.085 = 4.13

total to pay = 48.55 + 4.13 = 52.68

Buying 3 can of tennins ball and one racket, Elena paid $52.68, including taxes.

5 STARS, BRAINLIEST, & THANKED FOR THE FIRST CORRECT ANSWER!!
Solve the system of equations using the elimination method.

3x + 2y = 14

2x + 4y = 12

Answers

ANSWER
x= 4
y= 1
hope this help ma

3x + 2y = 14
3x = 14 - 2y
3x = 12y
3x/3 = 12y/3
x=4y

2x+4y = 12
2x = 12-4y
2x = 10y
2x/2= 10y/2
x=5y

What is the estimate for each expression? Drag the number to each box.

Answers

Answer

1. 1/2

2. 1

3. 0

Answer:

1/8 + 2/5 = 1/2

13/14 - 1/10 = 1

1/12 + 1/20 = 0

List all the possible measurements for rectangles with a perimeter of 16.

Answers

Answer:

the possible answers are...

16/2=8, so...

1x7

2x6

3x5

4x4

you can finish from here

Step-by-step explanation:

Answer:

6 6 4 4/ 7 7 1 1/ 5 5 3 3/ then just those but backwards.

Can someone help me????

Answers

Answer:

I don't have enough info to understand the question?

Step-by-step explanation:

Write an equation in slope-intercept form of the line that passes through the given point and is parallel to the graph of the given equation.

(4, 2); x = -3

Answers

I got y = -3x + 14 as the answer

Answer:

He is right y = -3x + 14

Step-by-step explanation:

Simplify the following expression.
5 + 18 Divide 3^2
A. 8
B. 7
C. 18
D. 23

Answers

Answer:

Step-by-step explanation:

3^2=9

5+18=23

23/9

2 5/8 <----- answer if u need to solve

Answer:

Step-by-step explanation:

3*3=9

18/9=2

5+2=7

Hello!
Multiple Choice. Which of the following fractions is equivalent to (6/15)

2/7

4/10

1/2

1/4

Answers

Answer:

4/10

Step-by-step explanation:

Answer:

4/10

Step-by-step explanation:

Good Luck

DONT DO IT JUST FOR THE POINTS!!!! PLZ EXPLANE HOW TO DO IT WILL GIVE BRAINS

Answers

Answer:

So all the lengths of the sides have to be equal in an equalateral triangle.

Step-by-step explanation:

Each side is going to equal 15. I found this by adding all the numbers together and deviding them by 3 (the number of sides).

I can't help you much more than that, but I hope it helps. ◑﹏◐

Answer:

i dont get it

Step-by-step explanation:

What steps would you follow to graph the inequality statement? -4 ≥ -w

place an open circle on -4 and shade to the left
place a closed circle on -4 and shade to the right
place an open circle on 4 and shade to the left
place a closed circle on 4 and shade to the right

Answers

Answer:

Place a closed circle and shade to the right

........................................................................Lol

Answers

Answer:

0.33

Step-by-step explanation:

Answer: 21

Step-by-step explanation: We can use the method: Keep, Change, Flip.

1. Keep 7.

If you want 7 to become a fraction, you can do it like this: [tex]\frac{7}{1}[/tex]

2. Change division to multiplication.

It's very simple. Just change the sign.

3. Flip [tex]\frac{1}{3}[/tex].

It's like converting it into a improper fraction. [tex]\frac{1}{3}[/tex] is now [tex]\frac{3}{1}[/tex].

Now we can solve!

[tex]\frac{7\times3}{1\times1} =21/1[/tex]

Therefore, your answer is 21/1 or just 21.

how many inches are in 4 yards

Answers

Answer:

144 inches

Step-by-step explanation:

There are 144 inches in 4 yards

The height of a building is proportional to the number of floors. The figure shows the height of a building with floors. Complete parts a and b. a. Write the ratio of height of the building to the number of floors. Then, find the unit rate, and explain what it means in this situation. Fill in the correct answers to complete the sentences. The ratio of height of the building to the number of floors is . The unit rate is . This means that each floor of the building is ft high.

Answers

Answer:

1:13

1 floor per 13 feet.

It means how many floors are to be allocated in a certain area of space.

Step-by-step explanation:

Answer:

Meaning: Each floor of the buiding has a height of 15 feet.
Step-by-step explanation:
The missing figure is attached.
By definition, the ratios are used to compare two or more things or quantities.
In this case you must write the ratio of height of the building to the number of floors it has.
You can observe in the figure that the building has a height of 135 feet, and, since it has 9 floors, you can write the following ratio:

Therefore, dividing the numerator by the denominator, you get that the unit rate is:

This means that each floor of the buiding has a height of 15 feet

I know it's wrong

Giving brainliest!!!!!!!!!!!

Answers

Answer:

the answer is A because "colorbiosticts" is middle and that is the only option that says that

Step-by-step explanation:

PLEASE EXPLAIN WHAT MAKES THEM EQUAL

Answers

math is wh as t makes this equations true specifically pre algebra

Triangle ABC is isosceles, meaning that two of the sides are equal. In this equation we can say the parts that would like this— /\ — are equal. Therefore, we can say angle A is equal to angle C and angle B would be just about 20°.

Help Me please this is due soon

Answers

Answer:

Step-by-step explanation:

dark chocolate takes longer to melt than white chocolate.

the consistency might be the same.. this is one I think.

The radius is ___ cm.
O A.) 3
O B.) 7/4
O C.) 7/2
O D.) 7

The circumference in terms of π is ___ π cm.
O A.) 7
O B.) 7/4
O C.) 7/2
O D.) 14

Using 3.14 for π, the approximate circumference of the circle is ___ cm.
O A.) 7.0
O B.) 11.0
O C.) 22.0
O D.) 21.0

Answers

number one is b, number two is c, number three is a??

Can someone please help me with this?

Answers

It’s not letting me click on the picture to see the question

can anyone help pls i need help?!?! Mr. Gonzalez ran a marathon in 4hr. 25 min. How many seconds did it take for him to run the full marathon?

Answers

Answer:

14550 seconds

Step-by-step explanation:

Answer:

18940 seconds

Step-by-step explanation:

50 POINTS AND BRAINLIEST PLS ANSWER FAST AND EXPLAIN YOUR ANSWER!!!!
PART A: The sun produces 3.9 ⋅ 10^33 ergs of radiant energy per second. How many ergs of radiant energy does the sun produce in 1.55 ⋅ 10^7 seconds?

PART B: Which is the more reasonable measurement of the diameter of a human hair:
1.8 ⋅ 10^−2 mm or 1.8 ⋅ 10^2 mm? Justify your answer.

Answers

Answer:

a. 0.48

b102mm

Step-by-step explanation:

Answer:

Part A. 5.85 · 10^40 ergPart B. 1.8 ⋅ 10^−2 mm

Step-by-step explanation:

Part A

Multiply the numbers and find the product:

3.9 ⋅ 10^33 × 1.55 ⋅ 10^7 =3.9 × 1.5 · 10^(33 + 7) =5.85 · 10^40Part B1.8 ⋅ 10^2 mm = 1.8·100 mm = 18 cm is too much for the human hair

Therefore more reasonable number is:

1.8 ⋅ 10^−2 mm

please i really need help

Answers

Answer/Step-by-step explanation::

8) 10.2(2) + 9.4(3)

20.4 + 28.2

48.6

9) 1/2(1/4) + 3/8

1/8+ 3/8

1/2

10) 6+2y

i hate math sm it ain’t even real

Please answer the ones i have not!

Answers

Answer: 100 FOR THE 1ST ONE 41 FOR THE SECOND AND 678 FOR THE 3RD

Step-by-step explanation:

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