Numerele a,b,c sunt rationale si verifica egalitatea 3a+4b=c-36. Determinati cele trei numere daca a si b sunt direct proportionale cu 4 si 3,iar b si c sunt invers proportionale cu 0,24 si 0,01

Answers

Answer 1

Answer:

a/4 = b/3 = k

a=4k

b=3k

0.24=24/100=6/25

0.01=1/100

6b/25 = c/100 = k'

b=25k'/6=3k =>k'=18k/25

c=100k'=72k

Step-by-step explanation:

Answer 2
What the person said above me

Related Questions

Referring to the Fig. in Question #26, find the product represented by the
shaded region.

Answers

Answer: 0.375

Step-by-step explanation:

Width= 1÷4= 0.25

Length= 1÷2=0.5

=(0.25x0.5)x3

=0.125x3

=0.375

What possible transforms are shown below?


A reflection in the y-axis

A translation 4 units to the left

A rotation of 90°

A reflection in the x-axis

Answers

Answer: A reflection in the y-axis, a rotation of 90 degrees.
Reflection across y axis

I really need help please

Answers

Answer is 14

Step by step

Remember order of operations
PEMDAS

54 / (5-2) ^3 + 4 * 3 =

First order of operations is ( 5-2) is 3

54 / 3 ^3 + 4 * 3

Next is exponents 3^3 = 27

54/ 27 + 4 * 3

Next is multiply and divide

54/27 = 2 And 4 * 3 = 12

2 + 12 = 14

Answer is 14
your answer is 14 (ignore this I just need to meet the minimum word count)

(-3)to the 4th power < (-4)to the 3rd power or (-3)to the 4th power > (-4)to the 3rd power or (-3)to the 4th power = (-4)to the 3rd power

Answers

Answer:

not sure

Step-by-step explanation:

-3 to the 4th power is greater than -4 to the 3rd power

Find the mean for the following set of data: 20, 20, 13, 14, 18

Answers

Answer: 17

Step-by-step explanation:

To find the mean you need to add up all the values and then divide it by the number of values there are so:

20 + 20 + 13 + 14 + 18 = 85

Then divide it by 5 because there are 5 values:

85 / 5 = 17

Answer: Mean:17

Step-by-step explanation:

1. 20+20+13+14+18=85

2.85/5=17

A teacher needs to buy yarn for her students to make a craft in
class. If each student needs 1 1/4 feet of yarn, how many feet of yarn
should the teacher buy for the following 5 students?

Answers

Answer:55/4 or 13 3/4

Step-by-step explanation: 11/4 *5

55/4 that the Rt one

sorry to ask but i need help
(-2)³x(-6)

Answers

Answer:

48

Step-by-step explanation:

-2×-2×-2= -8

-8×-6= 48

negative × negative = positive

Answer:

The answer is 48

Step-by-step explanation:

Which of the following does not have a difference of 4?

9 - 5
-5 - (-9)
-4 - (-8)
-8 - (-4)

Answers

Answer: D -8 - (-4)

Step-by-step explanation:

Answer for this one should be
D -8-(-4)

Write an equation for the line below.

Answers

Answer:

Write the equation of the line that has a slope of  and a y-intercept of −5.

Substitute the slope (m) into y = mx + b.

or

Substitute the y-intercept (b) into the equation.

Step-by-step explanation:

Answer:

Well if your asking for the coordinates its obviously (-3,5) and (3,-1)

Step-by-step explanation:

just look at the lines and do x then y

HELP
A company manufactures cell phone cases. The length of a certain case must be within 0.25 mm of 125 mm, as shown (figure is not to scale). All cases with lengths outside of this range are removed from the inventory. How could you use an absolute value inequality to represent the lengths of all the cases that should be removed? Explain.

Answers

Answer:

Step-by-step explanation:

the length must be within plus or minus .25 mm of 125 mm.

if x is the length of the case, then:

absolute value of (x - 125) must be <= .25

this is shown as |x - 125| <= .25

when the expression within the absolute value sign is positive, the expression becomes (x - 125) <= .25

add 125 to both sides of this inequality to get:

x <= 125 + .25 = 125.25

when the expression within the asbolute value sign is negative, the expression becomes (x - 125) >= -.25

add 125 to both sides of this inequality to get:

x >= 125 - .25 = 124.75

the manufactured case must have a length that is greater than or equal to 124.75 mm and less than or equal to 125.25 mm.

otherwise it is removed from the inventory.

It appearxs that the other tutor talked a lot about your question; but he did not answer it.

The inequality that represents the lengths of all cases that should be removed from the inventory is

abs%28x-125%29%3E0.25

The same thing as the first person

Lilly starts hiking along a trail at 3 miles per hour. Dave starts hiking the same trail from the same starting point at 3.5 miles per hour. If Lilly walked 2 miles before Dave started hiking, would he catch up to her?


I just need the equation.

Answers

Answer:

it should be 7

Step-by-step explanation:

because if they walk a total of 3 miles and lily walks 2 mile before David that would be 3.5 times 2 which is 7

Answer: yes

Step-by-step explanation:

PLS help me 30p + brainlyest

Answers

Answer:

Rewrite 3/4 as 9/12, 9/12 is greater than 7/12, and I think they just want you to circle the fraction that aren't in the columns

Step-by-step explanation:

3 has the > sign

It's fox season! - Ash the Fox

Answer: 3 is > (greater than)

Step-by-step explanation:

Write [tex]\frac{3}{4\\}[/tex]  as   [tex]\frac{9}{12}[/tex] to make both denominators the same

How?

[tex]\frac{3 x3}{4 x3}[/tex]

[tex]\frac{9}{12}[/tex]  > [tex]\frac{7}{12}[/tex],

(> means "is greater than")

If you want to just fill the blanks, here are the answers:

Just fill the blanks from left to right. The answers are:

Question #1.

12

[tex]\frac{9}{12}[/tex]

>

Question #2.

a)

[tex]\frac{9}{12}[/tex]  >    [tex]\frac{8}{12}[/tex]

so,  

[tex]\frac{3}{4\\}[/tex] > [tex]\frac{2}{3\\}[/tex]

b)

[tex]\frac{25}{40\\}[/tex] < [tex]\frac{28}{40\\}[/tex]

so,

[tex]\frac{5}{8\\}[/tex] < [tex]\frac{7}{10\\}[/tex]

Question #3.

[tex]\frac{3}{10\\}[/tex] > [tex]\frac{2}{10\\}[/tex]

How?

[tex]\frac{1 x2}{5 x2\\}[/tex]

So,

[tex]\frac{3}{10\\}[/tex] > [tex]\frac{1}{5\\}[/tex]

Sorry that it's so long! Hope it helps tho :)

Referring to the figure, the shaded region reprsents the product
of what two fractions?
a. 3/4 × 3/4 c. 4/3 × 4/4
b. 3/4 × 4/4 d. 3/3 × 2/3

Referring to the figure, the shaded region reprsents the product
of what two fractions?
a. 3/4 × 3/4 c. 4/3 × 4/4
b. 3/4 × 4/4 d. 3/3 × 2/3

Answers

Answer:

b

Step-by-step explanation:

...

A is the answer trust

help please (easy) 25 points - Select ALL the numbers that are plotted on the number line shown.
A. -3.75
B. -3 1/2
C. -2/5
D. -9/4
E. -7/4
F. -1/2
G. 1/2
H. 2
I. 3

Answers

Answer:

bdgi

Step-by-step explanation:

C: -2/ 5
I hope this is right!!!

Can someone please help me ?Please work it out and show me how you got the answer
Jacob and his sister received a total of $150 for there birthday.If Jacob received $20 less than his sister,how much did each person receive for there birthday?
Jacob=___ Sister=____
You will get 5 stars ,a brain,and a thank you

Answers

Jacob 55 and sister 75
Jacob received 55
Sister received 75

What is 89% of $181.16

Answers

Hi!
$161.23

I hope this help you!
Answer is $161.23
Hope this helps you










Referring to the figure, Paula is cooking Italian food and using
the pan shown that is 22 cm long, 19 cm wide, and 2 cm deep. Which is
the capacity of the pan in milliliters and in liters?
a. 836; 8.36 c. 836; 0.836
b. 43; 0.043 d. 43; 0.43

Answers

Answer:

22*19*2=836cm cube=836ml

836ml=0.836l

answer is a

22*19*2=836cm= cube836ml

If 6 - 7 = -1, which of the following is true?

-1 + (-7) = 6
-1 + 7 = 6
7 - 6 = -1
7 - (-1) = 6

Answers

-1 + 7 = 6 is the correct answer
-1 + 7 = 6 is correct

Referring to the Fig. in Question #34, find the product represented by the

shaded region.

a. 1 c. 11/16

b. 4/3 d. 3/4

Answers

D. 3/4 because 12 of the 16 rectangles are filled in and if you divide the 16 and 12 by 4 they would equal 4 and 2. This shows that 16 and 12 are a product of 4 times another number. So if 12 are filled in only 4 more have to be filled in and 12 divided by 4 equals 3. So in this case the answer is 3/4.
answer is D.) 3/4:))

What function is graphed below?

y = 4 x + 2
y = x + 2
y = 2 x + 2
y = 2 x

Answers

Answer: y = 2x + 2

2x represents the slope, and 2 is the y-intercept.
b is the answer because b is right

Please hurry will give braliny

Answers

Answer:

[tex] \bf \implies {7}^{2} - 8 \times 2 - 16[/tex]

Step-by-step explanation:

A) (7² - 8)(2) -16

[tex]\bf \longrightarrow(7^{2} - 8)(2)- 16[/tex]

[tex]\bf \longrightarrow(49 - 8)(2) - 16[/tex]

[tex]\bf \longrightarrow(41)(2) - 16[/tex]

[tex]\bf \longrightarrow82 - 16[/tex]

[tex]\bf \longrightarrow66[/tex]

B) 7² - 8(2 - 16)

[tex]\bf \longrightarrow {7}^{2} - 8(2 - 16)[/tex]

[tex]\bf \longrightarrow49 - 8(2 - 16)[/tex]

[tex]\bf \longrightarrow49 - (8)( - 14)[/tex]

[tex]\bf \longrightarrow49 - ( - 112)[/tex]

[tex]\bf \longrightarrow161[/tex]

C) 7² - ((8)(2)-16)

[tex]\bf \longrightarrow {7}^{2} - ((8)(2) - 16)[/tex]

[tex]\bf \longrightarrow49 - ((8)(2) - 16)[/tex]

[tex]\bf \longrightarrow49 - (16 - 16)[/tex]

[tex]\bf \longrightarrow49 - 0[/tex]

[tex]\bf \longrightarrow49[/tex]

D) 7² - (8)(2) - 16

[tex]\bf \longrightarrow {7}^{2} - (8)(2) - 16[/tex]

[tex]\bf \longrightarrow49 - (8)(2) - 16[/tex]

[tex]\bf \longrightarrow49 - 16 - 16[/tex]

[tex]\bf \longrightarrow49 - 32[/tex]

[tex]\bf \longrightarrow17[/tex]

Thus, Option A , Option B and Option C don't expressed the value of 17.

Therefore, The correct option is D) which expressed the value of 17.

21.
Referring to the figure, the circle shown is drawn on grids. Find
A ÷ r and A ÷ r2.
a. 7.1, 3 c. 16, 4
b. 14.2, 3.2 d. 12, 2.7

Answers

Answer:

B.  14.2, 3.2

Step-by-step explanation:

diameter: 9 (count each box as 1)

d/2 = radius  --> radius: 4.5

Area of a circle= πr^2

A= 63.6172

A/r = 63.6172/4.5 = 14.1

A/r^2= 63.6172/(4.5)^2 = 3.14

Answer:

b

Step-by-step explanation:

what is the circumference if the diameter is 18 in

Answers

C = 56.52
times pi by diameter

Which expression represents the sequence of operations described below?
subtract 4 from 8, then multiply the result by 5

Answers

Answer:

5(8-4)

Step-by-step explanation:

You need to do the subtraction first, so put it in parenthesis because otherwise subtraction comes after multiplication if you follow PEMDAS, then put a five outside to multiply it by the difference of 8 and 4.

Answer: 5 x (4-8) or 5(4-8)

Step-by-step explanation:

First, put 4-8 in brackets, because you need to do it first and without brackets you would do the multiplication first (because of BEDMAS). Then, you would multiply your subtraction by 5.

Hope this helps :)

you solve a number puzzle on your phone. You start with 250 points. You finished the puzzle in 8 minutes and 45 seconds and make 3 mistakes. What is your score

Answers

Answer: 175 Points

Step-by-step explanation: 250 + 3(−50) + 75

250 + (−150) + 75

= 100 + 75

=175

the answer is 175 points

Referring to the figure, what is the area of each small rectangle?
a. 1/5 c. 1/3
b. 1/8 d. 1/15

Answers

1/5 because there are 5 small rectangular that make up thay big square

Answer:1/5

Step-by-step explanation:

I got you bro

Find the value of x for a line that has a slope of -3/5 and goes through the points (x,-2) and (-7,4)

Answers

Answer:

x = 3

Step-by-step explanation:

HELP
Hugo is pumping regular gas into his truck. Write and solve an absolute value equation to represent how many gallons of gas will be pumped when the total is $25 plus or minus $0.50.

Answers

Answer:

10

Step-by-step explanation:

We need to find out how many gallons of gas will be pumped when the total is $25 plus or minus $0.50. So what we do is $25 divided by $2.50 which will give us how many times the gas has been pumped. The answer to that is 10 which means the gas has been pumped 10 times.

THAT ANSWER IS VERY EASY IT WOULD BE
10

find the area and circumference of each circle. Use pi in your answer (example: radius = 8, or diameter = 14).

Answers

Answer:

Solutions below.

Step-by-step explanation:

First, we have to define each of the formulas first.

Area of Circle =

[tex]\pi {r}^{2} [/tex]

Circumference of Circle =

[tex]2\pi \: r[/tex]

With the above formula above, we can find the Area and Circumference for each circle.

Circle A:

Radius = 8

Area =

[tex]\pi {(8)}^{2} = 64\pi {units}^{2} [/tex]

Circumference =

[tex]2\pi(8) = 16\pi \: units[/tex]

Circle B:

Diameter = 14 units

Radius = 14 ÷ 2 = 7 units

Area =

[tex]\pi {(7)}^{2} = 49\pi {units}^{2} [/tex]

Circumference =

[tex]2\pi(7) = 14\pi \: units[/tex]

Area: 201.06
Circumference: 50.26
Area: 153.93
Circumference: 43.98

b - 7/4 = -2/3
WHAT IS B!!!!!!!!

Answers

The answer is 13/12. First you add -7/4 to both sides to isolate the variable(b) which would then create b = -2/3 + 7/4. Solve that to get 13/12

Answer:

b = 13/12

Step-by-step explanation:

[tex]b-\frac{7}{4} =-\frac{2}{3} \\\\\\b=-\frac{2}{3} + \frac{7}{4} \\\\\\b =-\frac{8}{12} + \frac{21}{12}\\ \\\\b=\frac{13}{12} \\[/tex]
Other Questions
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