All categories

3 years ago

Is the expression 4x − 3(5x − 1) is equivalent to the expression 3 + 9x. true faulse

Mathematics

2 answers:

KIM [24]3 years ago

5 0

Answer:

false

Step-by-step explanation:

i know it is

Brilliant_brown [7]3 years ago

3 0

False because 4x-3(5x-1) is -14x and 3+9x is 6x

You might be interested in

Mark the statements that are true.

qaws [65]

Answer:

Hi there!

The correct choices are: A, B, C

Step-by-step explanation:

π in radians equals to 180°

A is correct because 180/3 = 60

C is correct because 180/4 = 45

7 0

3 years ago

Write down the ratio of baking soda to baking powder if baking soda is 5ml and baking powder is 15ml

fomenos

Answer:

1:3

Step-by-step explanation:

That ratio would be 5 :15 or 1:3

8 0

2 years ago

15 POINT PLZ HELP ILL EVEN GIVE BRAINLEST !!!!!!!!!!!! NO ONE EVER AWNSERS THESE KIND OF QUSTIONS I POST!!!! SO PLZ HELP!!thanks

BARSIC [14]

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (2, 5) and (4, 10). Substitute:

$m=\dfrac{10-5}{4-2}=\dfrac{5}{2}=2.5$

This means that 2.5mm of rain falls every hour

3 0

4 years ago

A dartboard has 8 equally sized slices numbered from 1 to 8. Some are grey and some are white, as shown below.

Anna [14]

✨Answer:

✨:P (X) is 7/10P(not X) is 3/10 The total is 10 so that's ur denominator The probability of landing on a grey area is 7/10✨

Step-by-step explanation:✨

✨~hope this helps~✨

✨GOD LOVES YOU✨

8 0

3 years ago

2<br>Decrease R420 in the ratio 4:7

Oxana [17]

Step-by-step explanation:

Let the numbers are 4x and 7x. According to the question if each number is increased by 20, the ratio becomes 7 : 9.

Then,

( 4x + 20 ) : ( 7x + 20 ) = 7 : 9

9( 4x + 20 ) = 7( 7x + 20 )

9( 4x ) + 9( 20 ) = 7( 7x ) + 7( 20 )

9( 20 ) - 7( 20 ) = 7( 7x ) - 9( 4x )

2( 20 ) = 49x - 36x

40 = 13 x

40 / 13 = x

Therefore, number are :–

4 x = 4( 40 / 13 ) = 160 / 13

7 x = 7( 40 / 13 ) = 280 / 13

4 0

3 years ago