3. The area A of a triangle varies jointly as the base b and the altitude h of the triangle. If the area
of a triangle is 70 cm2 when the base is 14 cm and the altitude is 10 cm, find the area if the base is
8 cm and the altitude is 12 cm.​

Answers

Answer 1

Answer:

48cm²

Step-by-step explanation:

If the area A of a triangle varies jointly as the base b and the altitude h of the triangle, this is expressed as;

A = kbh

k is the constant of proportionality

If A  = 70cm², b = 14cm and h = 10cm

Substitute

70 = k(14)(10)

70 = 140k

k = 70/140

k = 0.5

To get the area if base is  8 cm and the altitude is 12 cm;

A = 0.5*8*12

A = ​48cm²

Hence the required area is 48cm²


Related Questions

Last year, Bob's Market ordered 15 1 2 15 2 1 ​ pounds of plums from a local orchard. This year, the market plans to order 1 1 4 1 4 1 ​ times as many pounds of plums as were ordered last year. They want 2 5 5 2 ​ of this order to be red plums. What is the total amount, in pounds, of red plums the market plans to order this year?

Answers

Answer: 7 3/4 pounds

Step-by-step explanation:

Here's the correct question:

Last year, Bob's Market ordered 15 1/2 pounds of plums from a local orchard. This year, the market plans to order 1 1/4 times as many pounds of plums as were ordered last year. They want 2/5 of this order to be red plums. What is the total amount, in pounds, of red plums the market plans to order this year?

The amount of pounds of plum that is ordered this year will be:

= 15 1/2 × 1 1/4

= 31/2 × 5/4

= 19 3/8

Since they want 2/5 to be red plums, the total amount of red plums will then be:

= 2/5 × 19 3/8

= 2/5 × 155/8

= 310/40

= 7 3/4 pounds

Tell how many Solutions y= 3x+ 2 y=-4x+5​

Answers

Answer:

There are 4 solutions

Step-by-step explanation:

Solve it

Given: <B and <D are right angles;C is the midpoint of BD.

Prove:ΔABC =ΔEDC​

Answers

Step-by-step explanation:

Statements Reasons

In [tex] \triangle ^{s} [/tex] ABC and EDC

1.[tex] \angle \: ABC = \angle \: CDF [ A ][/tex] Both are 90° [ Given }

2. BC = CD [ S ] C is the midpoint of BD [ Given ]

3. [tex] \angle \: BAC = \angle \: CED [ A ][/tex] Alternate angles

4. [tex] \triangle ABC \cong \triangle \: EDC \: [/tex] By AAS axiom

Hence Proved !

Hope I helped ! ツ

Have a wonderful day / night ! ♡

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

What is the other match?​

Answers

Answer:

A

Step-by-step explanation:

ASAP PLEASE
What is the area of rectangle ABCD, If points A, B, C, and D have these following coordinates? A(0,0) B(5/7, 0), C(5/7, 3 1/2), D(0, 3 1/2)

Answers

Answer:

d

Step-by-step explanation:

Find the coordinates of the midpoint of the segment gives its endpoint 6. A(5, 8) and B(-1,-4)

Answers

Answer:

(2,2)

Step-by-step explanation:

The midpoint between (5,8) and (-1,-4) would be (2,2). I hope that's what you're looking for.

#4 Find angles 1, 2, 3 A SO 13 2 A) 90, 40, 50 B) 90, 50, 40 C) 90, 50, 90 D) 90, 40, 90​ ​

Answers

Answer:

HI UR CUTE

Step-by-step explanation:

I JUST FARTED

- 3 ( x + 4 ) = - 24

What is x?

*the dash in front of the numbers is a negative sign*

Answers

Let's solve your equation step-by-step.

−3(x+4)=−24

Answer:

x=4

The answer is X = 4

A fair charges an admission fee of 2 dollars for each person. Let a be the cost of admission (in dollars) for P people. Write an equation relating c to p.

Answers

Answer:

[tex]a = 2p[/tex]

Step-by-step explanation:

Given

[tex]Admission\ Fee = \$2[/tex] per person

Required

Represent as an equation

For 1 person, the admission fee is 2

For p people, the admission fee will be 2p.

Hence:

[tex]a = 2p[/tex]

the coordinates of ABC are A( 2,3), B(6,6) , and C(7,2) . After a translation , the image of vertex A is (-6,1). a). give the coordinates of B and C after the same translation.​

Answers

Answer:

B (-2, 4)

C (-1, 0)

Step-by-step explanation:

(x,y) -> (x - 8, y - 2)

A (2, 3) -> (2 - 8, 3 - 2) = A (-6, 1)

B (6, 6) -> (6 - 8, 6 - 2) = B (-2, 4)

C (7, 2) -> (7 - 8, 2 - 2) = C (-1, 0)

Hope this helped and made sense!

An isosceles triangle has an angle that measures 56º. Which other angles could be in that
isosceles triangle? Choose all that apply.
HELP PLEASE I NEED THIS

Answers

Answer:

The other angles can be 56°, 68°, or 62°.

Step-by-step explanation:

If the 56° angle is one of the two congruent angles, then the remaining angles are 56° and 180-2(56) = 68°

If the is 56° Is not congruent to either of the other angles, then each of the remaining two angles is (180-56)/2 = 62°.

The other angles can be 56°, 68°, or 62°.

BRAINLIEST FOR ANSWER PLEASE HURRY

Answers

Answer:

11.3

Step-by-step explanation:

Pythagorean theorem is a^2+b^2=c^2

8^2+8^2=128

the square root of 128 is 11.3137085

then you round to the nearest tenth and get 11.3

Hey I need help ASAP NO SCAM PLEASE PROVIDE REASON WHY THIS IS THE ANSWER AND DONT SCAM IF YOU HAVE A QUESTION SAY IN THE INBOX NOT THE ANSWER AND STEAL POINTS thank you :3

Answers

Answer:

117 in²

Step-by-step explanation:

The formula is just Area = base * height

This means 13in*9in=117in²

The area of the parallelogram is 117 in²

Asap, need help. Thanks if your going to help me! Please explain the steps!​

Answers

Answers:

Person A receives at least 800 dollars, but no more than 1600 dollarsPerson B receives at least 1000 dollars, but no more than 2000 dollars

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

Explanation:

We don't have enough information to nail down exact figures, but we can make a range estimate.

The two people (call them A and B) share the profits in the ratio of 4 to 5

In shorthand notation, we can say the ratio is 4:5

This means person A gets 4x dollars while person B gets 5x dollars

The ratio 4x : 5x reduces to 4:5 after dividing both parts by x. The variable x is some positive real number.

The total profit is therefore 4x+5x = 9x dollars

This expression 9x is between 1800 and 3600 dollars, including both endpoints

We then can say...

[tex]1800 \le 9x \le 3600\\\\\frac{1800}{9} \le \frac{9x}{9} \le \frac{3600}{9}\\\\200 \le x \le 400[/tex]

We see that x = 200 is the smallest possible x value. This leads to person A and B receiving 4x = 4*200 = 800 dollars and 5x = 5*200 = 1000 dollars respectively. Note how the ratio 800:1000 reduces to 4:5 after we divide both parts by 200. We can see that 800+1000 = 1800 which is the lowest profit possible.

The inequality above shows that x = 400 is the largest x value possible. If this is the case, then person A receives 4x = 4*400 = 1600 dollars while person B receives 5x = 5*400 = 2000 dollars. The ratio 1600:2000 reduces to 4:5 after we divide both parts by 400. We can see that 1600+2000 = 3600 is the largest profit possible.

-------------------------

To summarize:

Person A can receive anywhere between 800 dollars and 1600 dollars (inclusive of both endpoints).Person B can receive anywhere between 1000 dollars and 2000 dollars (inclusive of both endpoints).

The actual amount they receive will depend on what the actual profit is. Since we're only given the range of the profit, we can only make an estimated guess of the range for each partner.

-------------------------

Side note: For either person, the ratio of the max to min is 2:1. This tells us that the max amount they receive is double compared to the min amount they receive. It's no coincidence that 3600 is double that of 1800.

The Product of a number m and 23​

Answers

Answer:

23m

Step-by-step explanation:

The product of a number m and the numeral 23 is 23m.

Based on the calculations, The product of a number m and 23 is equal to 23m.

How to solve a world problem?

In Mathematics, it is important to assign a variable to the parameters used in a word problem, so as to distinguish each of them. Thus, m represents the variable for the given word problem.

Next, we would multiply the variable by the given number.

Translating the word problem into an algebraic expression, we have;

m × 23 = 23m.

Read more on word problems here: brainly.com/question/13170908

#SPJ2

How much salt is there in 50 gallons of a 3% salt solution?

Answers

1.5 gal. i think im not fs

Ok I really don’t understand this

Please Find the area for each trapezoid, I barely have any time left please be fast

Answers

Answer:

number 2 in the left

Step-by-step explanation:

Which of the following could NOT be a possible option of the third side to a triangle with the sides 4 inches and 12 inches? *
A. 9 inches
B. 12 inches
C. 8 inches
D. 13 inches

Answers

Answer:

D

Step-by-step explanation:

brainliest

Simplify the expression:
3x + 5x + 6x – 4

Answers

Answer:

14x-4

Step-by-step explanation:

So you know 3x +5x = 8x so then you add 6x and put -4

Answer:

14x - 4

Step-by-step explanation:

simplifying this kind of given expression just means to put the variables all together and the numbers all together to get a shorter and more simplified version of the equation.

first do:

3x+5x+6x=

14x

and than you just have one number so your final simplified equation would be:

14x-4


The mean of three numbers is 8
Two of the numbers are 6 and 11
Work out the third number.​

Answers

Answer:

[tex]x=7[/tex]

Step-by-step explanation:

→ Form an equation

[tex]\frac{x+6+11}{3}=8[/tex]

→ Solve

[tex]x+6+11=24\\[/tex]

[tex]x=7[/tex]

a.
Clare wrote the inequality - 12x +100 225, where x represent the amount Kiran
takes out each month. What does - 12x represent?

Answers

Answer:

THe answer is a

Step-by-step explanation:

the answer is a

Bill bowled 3 games at a bowling alley and rented shoes, spending a total of $9.00. LeAnn bowled 5 games at the bowling alley and rented shoes,
spending a total of $14.00. How much does it cost to bowl a game?
A. $2.50
B. $2.80
C. $1.50
D. $3.00
Please help!!!

Answers

I need help with this one too

Answer:

3.00

Step-by-step explanation:

What, in degrees, is the measure of the largest angle in $\triangle PQR?$

Answers

Answer:

108 degrees

Step-by-step explanation:

3x+x+6x=10x, 180/10=18 and 18x6 is 108

Writing Prompt Algebra I
Your aunt is planning on building a rectangular pool that measures 10 feet by 12 feet. A
concrete walk around all four sides of the pool will also be included in the deal. However,
your aunt is not sure how big to make the width of the walk. Therefore, the width will be
“x” feet long. Your aunt is wondering how much land will be needed for the pool and the
walkway bordering the pool. You are to write a written description to your aunt telling her
how you would find the area of land needed for the pool and the walkway bordering all four
sides.

Answers

Answer: The width is 12 feet, since the pool measures 10 by 12.

Step-by-step explanation:

Your aunt will need 120 square feet of land. I know this because you multiply the length by the width, it equals 120. Then I have to look for the perimeter, and I do this by adding the length twice and add the width twice. This would equal 42.

Problem 5
A shoe store purchases a pair of shoes for $75
before a mark up is applied.
There is a 140% markup. After the markup, a 6%
sales tax is added.
What is the total after discount and tax?

Answers

Answer:

$78.9

Step-by-step explanation:

Given data

We are told that the store purchased the shoe before mark up, hence we only need to solve for the tax

tax= 6%

=6/100*75

=0.06*65

=$3.9

Hence the total is

=75+3.9

=$78.9

WILL GIVE BRAINLIEST!!!
What is the y=mx+b of the equation 5x−4y=12?

Answers

Answer:

y = 5/4x - 3

Step-by-step explanation:

please help me i will give brainliest:/

Answers

Answer:

i think its b tell me if im wrong!

Answer:

D.

Step-by-step explanation:

Delilah deposits 8,255 in an account that pays 4.2% simple interest. How much money will be in her account after 8 years

Answers

Answer:

11235.35

Step-by-step explanation:

Given data

P=8225

R=4.2%=0.042

T=8years

The simple interest formula is

A=P(1+rt)

Substitute

A=8225(1+0.042*8)

A=8225(1+0.336)

A=8225*1.366

A=11235.35

Hence the balance will be 11235.35

solve: |2x-1| ≥ 4x+3

Answers

Step-by-step explanation:

consider the sign as equals then

move 2x right side 3 on left

solve it

answer is 2

Question is: 2x - 1 >= 4x + 3

First, join the like terms together.

-> So 2x moves into 4x, meaning it becomes negative -2x on the other side.

-> The number 3 moves into the other side which also becomes negative.

Now the equation will look like this:

- 3 - 1 >= 4x - 2x

- 4 >= 2x

Put 2 on the other side with - 4, and it will divide (not plus or minus as 2 was combined with an unlike term).

It looks like this now:

- 4/2 >= x

- 2 >= x

This is the answer.

Quadrilateral EFGH is similar to quadrilateral IJKL. Find the measure of side JK. Round your answer to the nearest tenth. ​

Answers

Answer:

The answer is "31.888".

Step-by-step explanation:

If their respective angles become congruent or the side lengths get a constant relation, they realize that two quadrilaterals are similar

EFGH is similar to IJKL  because of quadrilateral

[tex]\to \frac{FG}{JK} =\frac{GH}{KL}=\frac{HI}{LM}=\frac{FI}{JM}\\\\\to \frac{GH}{KL} =\frac{HI}{LM}\\\\\to \frac{7}{KL}= \frac{9}{41}\\\\\to KL=\frac{7 \times 41}{9}=31.888[/tex]

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