All categories

3 years ago

Two more than4 times a number is -18

1 answer:

6 0

-5, work backwards. you know 2 + 4 * ? = -18.
start by subtracting 2 from both sides giving you 4 * ? = -20.
now you divide 4 from both sides giving you ? = -5

i used ? to represent the missing number btw!!

You might be interested in

If a triangle has a 50 degree angle and a 60 degree angle, how many degrees is the third angle?

mihalych1998 [28]

Answer:

Step-by-step explanation:

has to add up to 180 bro.

I KNOW this will help.

6 0

2 years ago

Read 2 more answers

A cone has a diameter of 18 units and height of 8 units. What is its volume?

sveta [45]

The radius of your cone is half of 18 units = 9 units.

The volume of any cone is <span><span>V = (1/3) · (pi) · (radius)² · (height) </span>
</span>
-- Take that formula for the volume of any cone.
-- Write '8' in place of 'height'.
-- Write '9' in place of 'radius'.
-- Write '3.142' in place of 'pi'.
-- Complete the arithmetic.
-- Bada-bing, you've got the volume.

6 0

2 years ago

Read 2 more answers

State whether the triangles are similar. If so, write a similarity statement and the postulate or theorem you used.

never [62]

Answer:

Triangles ABC and MNO are similar by SSS

Step-by-step explanation:

we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional

In this problem

If this problem the corresponding sides are

AB and MN

BC and NO

AC and MO

Verify if the corresponding sides are proportional

$\frac{AB}{MN}=\frac{BC}{NO}=\frac{AC}{MO}$

substitute the given values

$\frac{5}{7.5}=\frac{5}{7.5}=\frac{8}{12}$

$0.67=0.67=0.67$ ----- is true

When two triangles have corresponding sides with identical ratios , the triangles are similar by SSS Similarity

therefore

Triangles ABC and MNO are similar by SSS

8 0

2 years ago

A rod of aluminium has a mass of 575.4g and a volume of 210cm3

andreev551 [17]

Answer:

0.274g/cm^3

Step-by-step explanation:

density = mass / volume

so d = 575.4 / 210

d = 0.274g/cm^3

6 0

2 years ago

Please help! Help is appreciated! :)

-Dominant- [34]

Your answer to the question is A

4 0

3 years ago