Answer:
Ali's heart rate is 135 times per minute.
Step-by-step explanation:
Let Ali's heart rate be denoted by <em>x</em> times per minute.
It is provided that Ben's heart beats 18 times per minute more than Ali.
The ratio of their heart rates was 15:17.
That is:
Solve for <em>x</em> as follows:
Thus, Ali's heart rate is 135 times per minute.
Answer:
B 53
Step-by-step explanation:
Substitute 4 for y. Then -3x^2 + 16 = 52.
Solve for x. Subtract 16 from both sides, obtaining -3x^2 = 36.
Divide both sides by -3, obtaining x^2 = -12. This last result makes no sense, as no square of a real number could be negative. Probably this is where you're ":getting a negative answer."
If imaginary answers were allowed, then x = i*√12 = i*2√3 or x = -i*2√3.
x =
Answer:
the water to be added is 0.2 L
Step-by-step explanation:
The computation of the water to be added is given below:
The banberry amount is
= 7% of 6 Liters
= 0. 42L
Now
Let us assume the amount of water added be x L
So, the total solution is
= 6+ x L
Now percentage of banberry is
= 0.42 × 100 ÷ (6+x)
5 = 0.42 × 100 ÷ (9 + x)
9 + x = 9.2
x = 0.2 L
hence, the water to be added is 0.2 L
For ALL of these....use these formulas...
Finding Markup%Markup=Selling Price-Cost
Markup%=
1.) Recliner Chair. Cost=$61 Sell Price=$75.99
Markup= $75.99-$61
M=$14.99
Markup%=
Markup%=24.5% (Markup less than 25%)
2.) Basket Ball. Cost=$23.75 Selling Price=$29.95
Markup= $29.95-$23.75
M=$6.20
Markup%=
Markup%=26.1 (Markup greater than 25%)
3.) Necklace. Cost=$15 Selling Price=$19.25
Markup= $19.25-$15
M=$4.25
Markup%=
Markup%=28.3 (Markup greater than 25%)
4.)Notepad. Cost=$1.19 Selling Price=$1.50
Markup=$1.50-$1.19
M=$0.31
Markup%=
Markup%=26.1 (Markup greater than 25%)
5.)Speakers. Cost=$44.55 Selling Price=$54.99
Markup=$54.99-$44.55
M=$10.44
Markup%=
Markup%=23.4 (Markup less than 25%)
6.) DVD. Cost=$10.80 Selling Price=$12.95
Markup=$12.95-$10.80
M=$2.15
Markup%=
Markup%=19.9 (Markup less than 25%)
I hope this benefits other people in the future. :D
