Answer:
71.12
Step-by-step explanation:
80*12= 960
37*74=2738
2738-960=1778
1778/25=71.12
Answer:SORRY I TRIED I JUST DONT UNDERSTAND IT :(
Step-by-step explanation:
Answer:
r=9⅓
Step-by-step explanation:
(10,r). (4,-3)
(x¹,y¹) (x²,y²)
gradient=<u>y²-y¹</u>
<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>x²-x¹
<u>4</u>= <u>-</u><u>3</u><u>-</u><u>r</u>
3<u> </u><u> </u><u> </u><u> </u>4-10
multiply both sides by 3(4-10)to remove the denominators.
3(4-10<u>)</u>×<u> </u><u>4</u><u> </u>= <u>-</u><u>3</u><u>-</u><u>r</u><u> </u>×3(4-10)
3 4-10
(4-10)×4= (3-r)×3
16-40=9-3r
put the liketerms together
note* signs(- +) change when they cross the equal sign(=)
3r=4+40-16
3r=28
divide both sides by 3
r=28/3.
r=9⅓
You need to invest $3000 at the 5% interest rate and invest $5000 the 6% interest rate to get a total annual interest of $450
