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3 years ago

I’m stuck I need help

Mathematics

1 answer:

arlik [135]3 years ago

8 0

Answer:

X=6

Step-by-step explanation:

First step isolate the variable;2x=12

Simplify;x=12/2=6

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100 POINTS!!!!!!! I WILL GIVE BRAINLIEST!

abruzzese [7]

Answer:

8.4 miles

Step-by-step explanation:

Let the speed in the morning be s, then in the evening it is s - 4

The distance is equal both directions:

45 min *s = 1 hr 10 min *(s - 4)

Time in hours:

45*1/60*s = (1 + 10*1/60)(s - 4)
3/4s = 7/6s - 7/6*4

Multiply all terms by 12 to clear fraction:

9s = 14s - 56
5s = 56
s = 56/5
s= 11.2 mph

The distance is:

3/4*11.2 = 0.75*11.2 = 8.4 miles

3 0

3 years ago

I WILL GIVE U BRAINLY!!

KiRa [710]

Answer:

prime i think sooooooooooooo

6 0

3 years ago

Which of these can be written as an equation?

Katyanochek1 [597]

Your answer would be choice b

6 0

3 years ago

3. Sam and Tim each have savings accounts. Every month they each put in some of their

Setler [38]

Answer:

$y = 30x +50$ --- Sam

$y = 20x +80$ --- Tim

Step-by-step explanation:

Given

Sam Tim

х --- f(x) --------------- g(x)

1 --- 80 --------------- 100

2 --- 110 --------------- 120

3 --- 140 --------------- 140

4 --- 170 -------------- 160

Required

Determine the y value

y value implies the equation of the table

Calculating the equation of Sam

First, we need to take any corresponding values of x and y

$(x_1,y_1) = (1,80)$

$(x_2,y_2) = (4,170)$

Next, we calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{170 - 80}{4 - 1}$

$m = \frac{90}{3}$

$m = 30$

Next, we calculate the line equation using:

$y - y_1=m(x-x_1)$

$y - 80 = 30(x - 1)$

$y - 80 = 30x - 30$

Make y the subject

$y = 30x - 30 + 80$

$y = 30x +50$

Calculating the equation of Tim

First, we need to take any corresponding values of x and y

$(x_1,y_1) = (1,100)$

$(x_2,y_2) = (4,160)$

Next, we calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{160 - 100}{4 - 1}$

$m = \frac{60}{3}$

$m = 20$

Next, we calculate the line equation using:

$y - y_1=m(x-x_1)$

$y - 100 = 20(x - 1)$

$y - 100 = 20x - 20$

Make y the subject

$y = 20x - 20+100$

$y = 20x +80$

7 0

3 years ago

Which is larger 4 yard or 13 foot?

kow [346]

As 1 yard is equal to 3 feet , so 4 yard will be 12 feet !

so 13 foot > 4 yards

4 0

3 years ago