Ask question

Ask question

All categories

3 years ago

10

The cost of petrol rises by 2 cents a liter. last week a man bought 20 liters at the old price. This week he bought 10 liters a

t the new price. Altogether, the petrol costs $9.20. What was the old price for 1 liter?

1 answer:

Allushta [10]3 years ago

7 0

I think the answer would be $3.06.

You might be interested in

Please help me :) once again

grigory [225]

Answer:

About 11.31 cm

Step-by-step explanation:

If one of the legs of a right iscosceles triangle is 8, then the length of the other one must also be 8. Therefore, by the Pythagorean Theorem:

$h=\sqrt{8^2+8^2}=\sqrt{64+64}=\sqrt{128}\approx11.31$

Hope this helps!

7 0

3 years ago

Read 2 more answers

Pythagorean theorem help me plzzzz<br> Z

erastovalidia [21]

X^2 = 12^2 + 10^2
x^2 = 144 + 100
x^2 = 244
x = sqrt(244)
x = 15.62

6 0

3 years ago

-3(x-5)=45<br> Please answer asap!

MrRa [10]

-3(x-5)=45

distribute

-3x+15 = 45

subtract 15 from each side

-3x = 30

divide by -3

x = -10

4 0

3 years ago

Which of the following expressions is written in scientific notation?

attashe74 [19]

Answer:

D 31.4 × 10 4

Hope this helps!

8 0

3 years ago

Read 2 more answers

What's the diameter of 76cm circle circumference

pochemuha

Answer:

The circumference of a circle is C = 2πr^2 (2nd power) Radius (r) is the distance from the center of the circle to the outside of it. To find radius divide the diameter (d) by 2. The diameter (d) of a circle is the radius (r) multiplied by 2. To find the diameter (d) you need to do C ÷ π.

For example):

Finding diameter - 76/3.14 = 24.19 (d)

Finding radius - 24.19/2 = 12.095 (r)

6 0

3 years ago