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Solve the following pair of simultaneous equations: 5x+2y=8 and 2x+y=7

In my opinion the easiest way of approaching simultaneous equations is to first number your equations. 5x+2y=82x+y=7This helps avoid confusion later in the working. Next choose the variable you want to solve...
EH
Answered by Emmy H. • Maths tutor
4669 Views

Why does glucose pass into the kidney but red blood cells and protein do not?

Each kidney contains 1000s of nephrons and this is where a process called ultrafiltration occurs. Blood from the renal artery flows through the glomerulus at high pressure. The glomerulus is a bundle of capi...
LT
Answered by Lottie T. • Biology tutor
7319 Views

Find the inverse of the function f(x) =2x-7.

Step 1) Replace f(x) with y: y= 2x - 7 Step 2) Switch around the x and y values: x = 2y - 7 Step 3) Solve to find y by itself: x = 2y - 7 x +7 =2y (x+7)/2 = y Step 4) Replace y with the f(x) notation for the...
ND
Answered by Nikita D. • Maths tutor
5204 Views

What is the difference between mitosis and meiosis?

Both mitosis and meiosis are methods of cell division. Mitosis is cell division where the DNA of the parent molecule is duplicated then split into 2 identical daughter cells. Mitosis is split into 4 stages; ...
PC
Answered by Pavan C. • Biology tutor
3486 Views

How do I use "ser" and "estar"?

These two verbs translate to the english verb "to be" and, yes, it can be tricky to understand when we should use one or the other. As a general rule, a) "Ser" is used when we talk about ...
JB
Answered by Joanes B. • Spanish tutor
2971 Views