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4 years ago

How do you work this out?

Mathematics

2 answers:

Paraphin [41]4 years ago

4 0

Step-by-step explanation:

Simple

We will divide 140 by 20 = 7

Means the average speed = 7

Alex73 [517]4 years ago

4 0

The answer for your average speed is 7

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An equation is given.

statuscvo [17]

You can use (-25,-5) it fits the equation and it’s in the solution set

5 0

3 years ago

What is the value of x in the equation three-fifths x = negative 45? –75 –27 27 75

scoundrel [369]

Answer:

x = -75

Step-by-step explanation:

$\frac{3}{5}$ x = - 45 ( multiply both sides by 5 to clear the fraction )

3x = - 225 ( divide both sides by 3 )

x = - 75

8 0

2 years ago

Read 2 more answers

What is 840 inches converted to centimeters

lora16 [44]

2133.6 centimeters i hope i help you

6 0

3 years ago

Use the picture below to answer questions 13a and 13b.

Svet_ta [14]

Answer:

13a: Measure of angle 1 is 120 degrees

13b: Angle 2 is 60 degrees

Step-by-step explanation:

Angle 1 is alternate exterior (so in a parallel pair they are equal) to the angle on line m given as 120 deg.

Angle 2 is 180 minus 120= 60 Sum of the two angles must equal 180.

3 0

3 years ago

Which expression would be equivalent to: Which expression would be equivalent to: \frac{1+b}{2} - 3(a-1)

IrinaVladis [17]

Answer:

$\frac{1+b}{2} - 3(a-1) = \frac{b- 6a+7}{2}$

Step-by-step explanation:

Given

$\frac{1+b}{2} - 3(a-1)$

Required

An equivalent expression

$\frac{1+b}{2} - 3(a-1)$

Take LCM

$\frac{1+b}{2} - 3(a-1) = \frac{1+b- 2*3(a-1)}{2}$

$\frac{1+b}{2} - 3(a-1) = \frac{1+b- 6(a-1)}{2}$

Open bracket

$\frac{1+b}{2} - 3(a-1) = \frac{1+b- 6a+6}{2}$

Collect like terms

$\frac{1+b}{2} - 3(a-1) = \frac{b- 6a+6+1}{2}$

$\frac{1+b}{2} - 3(a-1) = \frac{b- 6a+7}{2}$

Hence, an equivalent expression is:

$\frac{b- 6a+7}{2}$

8 0

3 years ago