Answer:
4/15
Step-by-step explanation:
1.)
Old Number:35
New Number:45
Now, subract the new number(45) from the old number. (35)
45-35 is 10. Now divide the old number (35) by 10.
You'll get 3.5. 3.5%, increase is the answer for #1.
2.) Old: s (students)
New: 36,750
Do 100+5 (Addition because we do not know what the old number is.) 100+5 is 105. Move decimal over twice and you get 1.05. Multiply 36,750 by 1.05.
There were 38,587.5 kids last year.
3.)Since the discount is 15% off, do 100-15=85. Now, move the decimal over from the percent, and that makes that .85. Now multiply 50x.85. You get 42.5, or $42.50. Now the coupon is 10%, So subtract 100-10, giving you 90. Now move the decimal over. .90. Multiply 42.5 (or 42.50) by .90. You get 38.25. You do have enough money.
4.) Subtract 100-15, giving you 85. Move decimal over from percent. .85.
Now you would multiply .85 times k. B should be the answer.
Answer:-5*5=-25
Step-by-step explanation: If -5=x, since 1=y, then plug it in to the equation to get -25
Answer:
-7 1/6
Step-by-step explanation:
Subtract the whole numbers first.
-5-2 = -7
Now the fractions:
1/2 and 1/3
We need to find a common denominator. It's 6.
So,
for 1/2 multiply the numerator and denominator both by 3. You get 3/6.
Now 1/3:
Multiply 1 and 3 with 2. you get 2/6.
Subtract:
3/6-2/6=
1/6
Putting whole number and fraction togethr: -7 1/6