just need help with math before its due tomarrow

Let length be x

ATQ

[tex]\\ \sf\longmapsto 2(Length+Width)=124[/tex]

[tex]\\ \sf\longmapsto 2(x+35)=124[/tex]

[tex]\\ \sf\longmapsto 2x+70=124[/tex]

[tex]\\ \sf\longmapsto 2x=124-70[/tex]

[tex]\\ \sf\longmapsto 2x=54[/tex]

[tex]\\ \sf\longmapsto x=\dfrac{54}{2}[/tex]

[tex]\\ \sf\longmapsto x=27m[/tex]

Answer: -3

Concept:

Here, we need to understand the idea of evaluation.  

When encountering questions that gave you an expression with variables, then stated: "If x = a, y = b, z = c" (a, b, c are all constants), this means you should substitute the value given for each variable back to the expression.

Solve:

Given information

x= -3

Given expression

5x - 4 [7 + (2x - 4)]

Substitute x value into the expression

=5(-3) - 4 [7 + (2(-3) - 4)]

Simplify by multiplication

=-15 - 4 [7 + (-6 - 4)]

Simplify value in parentheses

=-15 - 4 [7 + (-10)]

Simplify value in bracket

=-15 - 4 [-3]

Simplify by multiplication

=-15 - (-12)

=-15 + 12

=[tex]\boxed{-3}[/tex]

Hope this helps!! :)

Please let me know if you have any questions

Answer:

please perimeter is a summation .

so how can the perimeter be 60^2?

[tex]\huge\mathsf\green{Answer} - [/tex]

f the formula c=2xr c stands for circumference of a circle

Answer:

I think answer is 195.Is it right make me a braillent

student.

Answer:

the answer is 6

Step-by-step explanation:

14 minus 8 is 6

Answer:

[tex] - 30(x + 5) = 7x - 7 \\ - 30x - 150 = 7x - 7 \\ 7x + 30x = - 150 + 7 \\ 37x = - 143 \\ x = \frac{ - 143}{37} \\ x = - 3.864[/tex]

________o____o_____

30–(x+5)=7x-7

30 – x–5 =7x -7

7x+x = 30-5+7

8x = 32

x= 32/8

x=4

I hope I helped you^_^

Answer:

Length(L) = y

perimeter of square = 4L

since L = y

so perimeter of square is 4y

Hi there!

[tex]\large\boxed{(2x + 3)(x + 1)}[/tex]

We can split into factors using the "guess and check" method.

Factors are in the format of:

(ax + b)(cx + d), where in this instance:

a · c = 2

bc + da = 5

b · d = 3

Thus, we get:

(2x + 3)(x + 1)

Answer:

2x^2 +5x +3            3*2 =6  and 3+2 = 5

2x2 +2x +3x +3

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

(x+1)(2x+3)

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

x:14 = 1:7

x/14 = 1/7

x = 14/7

=> x = 2

Answer:

B

Step-by-step explanation:

because he owes that automatically negative .

he also earns 30 plus dollars

and he gave away 21 dollars and giving away is taking away .

Answer:

D. -3

Step-by-step explanation:

d = t2 - t1

d = -5 - (-2)

d = -3

Answer:

thus is so easy

Step-by-step explanation:

too easy

Answer:

4 is the answer

Step-by-step explanation:

2 (4u-9)=14

8u-18=14

8u=14+18

8u =32

divide by 8

u=4 answer

Answer:

-2.4x + 30.3

Step-by-step explanation:

5x - 7.4 (x - 3) + 8.1

5x - 7.4x + 22.2 + 8.1

-2.4x + 30.3

Answer:

3 = - 4g - 5

3 + 5 = - 4g

8 = - 4g

8/-4 = g

-2 = g

* g = -2

The value of g in the equation 3= −4g −5 is -2.

Two or more expressions with an Equal sign is called as Equation.

The given equation is 3=-4g-5

Three equal to minus four times of g minus five.

The g in the equation is a variable.

The operator in the given equation is Subtraction which is minus.

We need to find the value of variable g.

By addition property add 5 on both sides

3+5= −4g −5+5

The plus five and minus five will be cancelled in the right side.

3+5=-4g

Add 3 and 5 in left side.

8=-4g

By division property divide both sides by 4

g=-2

Hence, the value of g in the equation 3= −4g −5 is -2.

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

Step-by-step explanation:

A because the amount of ice cream sales doesn't relate to the number of births in a city.

B works because amount of ice cream sales can relate to money. Both C and D work because temperature could affect when people want to buy ice cream. (people most likely won't buy ice cream in the winter but most likely will in the summer)

u.mmm is a prime number of the queen of the pants down the street and is not

Factors for 3: 1 and 3

Factors for 5: 1 and 5

Factors for 14: 1, 2, 7, and 14

Answer:

1

Step-by-step explanation:

Factors for 3: 1 and 3  

Factors for 5: 1 and 5  

Factors for 14: 1, 2, 7, and 14

Since 1 is the greatest common factor in 3,5,14 ,

GCF = 1

Answer:

17 hours

Step-by-step explanation:

total cost = fee + cost per hour * hours

100 = 15 + 5h

Subtract 15 from each side

100-15 = 5h

85 = 5h

Divide by 5

85/5 = 5h/5

17 =h

Answer:

Kim rent the bike for 17 hours.

Step-by-step explanation:

h=hours

15 + 5h = 100

Subtract 15 on both sides.

5h = 85

Divide 5 on both sides.

h = 17

Answer:

100 centimeter = 1 meter

1000 meter is 1 kilometer.

so speed is 300000 kilometer/second.

Step-by-step explanation:

There are 3600 seconds in one hour, multiply with 3600=

1080 000 000 kilometer/hour.

Answer:

1.08^9km/hr

Step-by-step explanation:

3 x 10^10cm/ 1s

(3 x 10^10 ÷100÷1000)km / 1÷60÷60

=1.08^9km/hr

Answer:

y = 8

Step-by-step explanation:

The equation of a line parallel to the x- axis has equation

y = c

where c is the value of the y- coordinates the line passes through.

Then

y = 8 ← is equation of line parallel to the x- axis

Answer:

x = measure of the first angle

2x -5 = measure of the second angle

3x - 19 = measure of the third angle

the sum of the measures of a triangle is 180 degrees

x + (2x-5) + (3x-19) = 180

6x - 18 = 180

x = 33 (first angle)

2x - 5 = 2 (33) -5 = 61 (second angle)

3x - 19 = 3 (33) - 19 = 86 (third angle)

Answer:

Angle 1 is 22°

Angle 2 is 78°

Step-by-step explanation:

Angles on a straight line always add up to 180°.

To find Angle 2, you would have to do 180° take away 102°.

180-102=78°

Angles in a triangle also add up to 180°.

So to find Angle 1, you would have to add the two Angles you already have and take it away from 180°.

80+78=158°

180-158=22°

Hope this helps :)

Answer:

option A is correct answer

Answer:

[tex]a. \: \: x = 3 \: \: and \: 5[/tex]

Step-by-step explanation:

[tex]a. \: \: \: x^2-8x+ 15 = 0 \\ {x}^{2} - 5x - 3x + 15 = 0 \\ x(x - 5) - 3(x - 5) = 0 \\ (x - 3)(x - 5) = 0 \\ x = 3 \: and \: 5[/tex]

[tex]b. \: \: 2x^2 - 5x - 6 =0 \\ x = \frac{5± \sqrt{73} }{4} [/tex]