Ask question

Ask question

All categories

2 years ago

10

Make x the subject of the formula y=7x + 4

2 answers:

alex41 [277]2 years ago

6 0

Y = 7x + 4
-4 from both sides
y - 4 = 7x
/ 7 on both sides
(y-4)/7 = x

Answer:

x = (y-4)/7

murzikaleks [220]2 years ago

3 0

Answer:

x= (y - 4)/7

Step-by-step explanation:

y=7x + 4

Subtract 4 from both sides

y - 4= 7x +4 - 4

y - 4= 7x + 0

y - 4= 7x

Divide both sides by 7

(y - 4)/7= 7x/7

(y - 4)/7= x

x= (y - 4)/7

You might be interested in

Please help me it's due tomorrow

vitfil [10]

The graph represents p(x) = |x|

To graph r(x) and q(x), pick any values of x to graph (I'd pick the numbers on the x- scales, -6, -4, -2, 0, 2, 4, and 6)

As for explaining them, I'm sure something like "multiply the absolute value of x by -1/2" for describing q(x) is an acceptable answer.

6 0

3 years ago

PLEASE HELP!!!! see attachment below… I bet you cant solve this:

d1i1m1o1n [39]

Answer:

0

Step-by-step explanation:

<u>For each odd i the term is:</u>

(-1) $^{i}$ (5!*5/4!) $^{1/2}$ = - $\sqrt{25}$

<u>For each even i the term is:</u>

(-1) $^{i}$ (5!*5/4!) $^{1/2}$ = $\sqrt{25}$

So the sum of the first 100 terms is zero

3 0

2 years ago

5*45+6856x=8x+65x+76x

Brut [27]

Answer:

0.033547 I think

Step-by-step explanation:

4 0

3 years ago

If a point C is inside

julsineya [31]

Answer:

The image is so blurred

Step-by-step explanation:

Please tell me all the measures used in your question or re ask your question and instead screen shot

3 0

3 years ago

A rectangle has a length that is three feet more than twice it’s width. If the area of the rectangle is 90 square feet, then alg

Mkey [24]

Answer:

$Length=27feet\\Width=12 feet$

Step-by-step explanation:

Let, the length of the rectangle be 'L'

and, width of the rectangle be 'W'

length=2*Width+3

$L=(2W+3) feet\\\\$

Area of the rectangle= 90 square feet

Area of a rectangle = Length*Width

$90=(2W+3)*W\\\\2W^2+3W=90\\\\2W^2+3W-90=0\\\\$

Using Factorization Method to solve quadratic equation:

$2W^2-12W+15W-90=0$

Taking common from the equation:

$2W(W-12)+15(W-12)=90\\\\(W-12)(2W+15)=0\\\\W-12=0\\\\W=12 feet$

OR

$2W+15=0\\\\2W=-15\\\\W=-7.5 feet$

The Width cannot be negative, therefore Width(W)=12 feet

$Length=2*Width+3\\\\=(12*2)+3\\\\=24+3\\\\=27 feet$

$Length=27feet\\Width=12 feet$

3 0

3 years ago