He’s right !! He helps me with my problems!
Answer:
a battery costs £0.43
Step-by-step explanation:
<u>Set up an equation</u>
11b+b+4.84=10
S<u>ubtract 4.84 from both sides</u>
12b+4.84=10
-4.84=-4.84
12b=5.16
<u>Divide 12 on both sides</u>
b=5.16/12
b=0.43
Answer:
Step-by-step explanation:
425=25x-10x-250
675=15x
x=45
45 calculators were sold.
Mark brainliest please if this answer work please
12x + 2 = 3x - 25. STEP 1) subtract 3x from 12x so it now is: 9x +2 = -25 STEP 2) subtract 2 from -25 so it now is: 9x = -27 STEP 3) divide each side by 9 so now it is: x = -3
The formula for C(n,r), also known as "n choose r" or a combination,
is:
nCr = n! / (r!(n-r)!),
where n is the total number of options and r is number you must choose
The number generated is the total number of possible combinations.
The ! means factorial. For example, 4! = 4 x 3 x 2 x 1
