Pls help with this algebra ( it’s about equations with variables on both sides) unit practice 1-4).

37.5 sec/lap

Step-by-step explanation:

2 m and 30 sec to sec equals 150 sec

each lap is 25 m

100 ÷ 25 = 4 laps

150 ÷ 4 = 37.5 sec per lap

Answer:

A is the answer of the power

Answer:

15. x = 112 degrees

18. x = 120 degrees

Step-by-step explanation:

15.

A triangle's angles always equal 180 degrees so we can find the two unknown angles by subtracting 44 from 180 and then dividing it by 2.

2a + 44 = 180

2a = 136

a = 68

Each unknown angle equals 68 degrees. The line from 44 degrees to x degrees segments a line that has a 180 degree angle so we can subtract 68 from 180 to get x.

x + 68 = 180

x = 112

18.

We can use the same concept here but now every angle equals each other so we can divide 180 by 3 to get the measure of those angles.

3a = 180

a = 60

Now we do the same thing as last time to find x.

x + 60 = 180

x = 120

Answer:

-2

Step-by-step explanation:

-5 - (-3)

-5 + 3

= -2

Answer:

4 terms

Step-by-step explanation:

The terms in the expression are unique in that they cannot be combined.

The 4 terms are

2n

+ 5

- 3p

+ 4p

Answer:

k = 2.5

Step-by-step explanation:

We know that,

y = kx

=> y/x = k

Let us take the first value of x and y.

Si, 5/2 = k

=> 2.5 = k

Note: We can take any of the given values of x and y from the table.

Answer:

Step-by-step explanation:

To calculate the walking rate, you have to think of the unit that the walking rate is in. Walking rate is most often in meters per second or kilometres per hour, so I'll explain both. The first one (m/s) is easy, since both are already in these units. The formula speed = distance/time can be used here, which gives 12/3 = 4 meters per second.

For km/h it is a little more difficult. 12 meters equals 12/1000 kilometers (which is 0.012), since there are 1000 meters in a kilometer. Then 3 seconds equals 3/60 minutes (which is 0.05 mins), which is 0.05/60 hours (which is 0.0083333). Using the formula now, the answer is 0.012/0.0083333 = 14/4 km/h

Answer:

x = -13/4

Step-by-step explanation:

5 - (4x + 7) - 4 = 7

Distribute the minus sign

5 - 4x  -7 - 4 = 7

Combine like terms

-4x-6 = 7

Add 6 to each side

-4x-6+6 = 7+6

-4x= 13

Divide by -4

-4x/-4 = 13/-4

x = -13/4

Answer: -13/4 or -3.25 or - 3 1/4

Step-by-step explanation:

Answer:

-8  -3  9  12  13

Vote me

Answer:

[tex]y=-\frac{5}{2}x-24[/tex]

Step-by-step explanation:

[tex]2x-5y=-12\\5y=2x+12\\y=\frac{2}{5}x+\frac{12}{5}\\[/tex]

if two lines perpendicular,

[tex]m_{1} .m_{2}=-1\\ \frac{2}{5} .m_{2}=-1\\m_{2}=-\frac{5}{2}[/tex]

the line perpendicular to this line is

[tex]y=-\frac{5}{2}x+k[/tex] ; k ∈ R

the line passes through the point (10,-1)

so,

[tex]-1=-\frac{5}{2} (10)+k\\-1=-25+k\\k=-24[/tex]

∴the equation of the line perpendicular to 2x-5y=-12 that passes through the point (10,-1) is

[tex]y=-\frac{5}{2}x-24[/tex]

Answer:

See THE IMAGE FOR SOLUTION

Answer:

3) Verify the following: (a) 48 = 48, TRUE (b) 230 = 230, TRUE

Step-by-step explanation:

3) Verify the following:

a. 16 [7 + (-4)] = [16 × 7] + [16 × (-4)]

= 16 [7 -4] = [112] + [16 × -4]

= 16 [3] = [112] + [-64]

= 48 = 112 - 64

= 48 = 48        

This is true because both sides are equal.

b. -23 × [(-8) + (-2)] = [(-23) × (-8)] + [(-23) × (-2)]

= -23 × [-8 - 2] = [-23 × -8] + [-23 × -2]

= -23 × [-10] = [184] + [46]

= -23 × -10 = 184 + 46

= 230 = 230

This is true because both sides are equal.

Answer:

46

Step-by-step explanation:

The sum of the two smaller angle measures is 98.

(2x + 6) + (3x - 8) = 98

Combine like terms.

5x - 2 = 98

5x = 100

x = 20

Plug this into the expressions for the two smaller angle measures.

2x + 6 = 2(20) + 6 = 46

3x - 8 = 3(20) - 8 = 52

The smaller of the two angles measures 46.

Step-by-step explanation:

1 ) 402

402 - 2 = 400 which is a perfect sqrt ( 20)^2

so u must subtract 2

2) 1989

1989 - 53 = 1936 which is a perfect sqrt (44)^2

3) 3250

3250 -1 = 3249 which is a prefect sqrt (57)^2

4) 4000

4000 - 31 = 3969 which is a perfect sqrt (63)^2

Answer:

You can buy 10 bulbs of elephant garlic

Step-by-step explanation:

Since each bulb of elephant garlic is 2.

1 x 2 = $2

That is the cost of 1 elephant garlic.

10 x 2 = $20

That is the cost of 10 elephant garlic.

Answer:

Step-by-step explanation:

Answer:

Option D is correct

Step-by-step explanation:

[tex]x - 6 = 8 \\ x = 8 + 6 \\ x = 14[/tex]

Answer:

Option D is correct

Step-by-step explanation:

[tex]x - 6 = 8 \\ x = 8 + 6 \\ x = 14[/tex]

Answer:

You put 8.38 instead of 8.23

Step-by-step explanation:

You must put 8.33 instead of 8.23 or else you will get 22.5 -8.23

Answer:

7/11

7/9

Step-by-step explanation:

7/11 = 35/55

5/8 = 35/56

Take the fraction eith smaller denominator

5/12 = 35/84

7/9 = 35/45

take the fraction eith the smaller denominator

Answer:

Area of rectangle =  2.16 [tex]ft^{2}[/tex]

Step-by-step explanation:

Given ,

Base = 13 ft = 156 in

Height = 2 in

Area of rectangle = base * height

area =  156 * 2

area = 312 [tex]in^{2}[/tex]

area in square foot = [tex]\frac{312}{144}[/tex] = 2.16 [tex]ft^{2}[/tex] approx

Answer:

4x-17

Step-by-step explanation:

Answer:

B (-1 , 0)

Step-by-step explanation:

0 <= -(-1) +3

0 <= 4

0 <= (-1)^2 - 3 (-1)

0<= 4

Answer:

Step-by-step explanation:

Answer:

g(-3) = -3

Step-by-step explanation:

Plug in -3 everywhere that x is.

g(-3) = (2/3)(-3) - 1

g(-3) = (-6/3) - 1

g(-3) = -2 - 1

g(-3) = -3

Answer:

$159.09

Step-by-step explanation:

Math

Answer: 6

Step-by-step explanation:

Factors of 12 = 1,2,3,4,6, and 12.

1*12 or 12*1 = 2

2*6 or 6*2 = 2

3*4 or 4*3 = 2

Answer: 25.66 units

Step-by-step explanation:

AB = 8

DC = 12

Distance between point D and A

D=sqrt[(-3 - - 5)^2 + (4 - 2)^2

= sqrt (2^2 + 2^2)

= 2 sqrt 2 = 2.83

AD = 2.83

BC = 2.83

2 (2.83) + 8 + 12 = 25.66 units

Answer:

61/24 is its simplest form! :)

Step-by-step explanation:

Answer:

x>-1.5

Step-by-step explanation: