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Sonbull [250]
3 years ago
7

Simplify the expression 4.2v - 5 -6.5v =​

Mathematics
1 answer:
a_sh-v [17]3 years ago
3 0

Answer:

-5 - 2.3v

Step-by-step explanation:

You want to combine like terms and since two of the numbers have variables, then you can add them both together

4.2v - 6.5 v = -2.3 v

So... -5 - 2.3v or

-2.3v - 5

either or there both same

Hope this helped!

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What is the slope of the equation X+2y=4
Anton [14]

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x 6ryfdrrtfgfyjgtyrddt

Step-by-step explanation:

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3 years ago
Ryan is 23 years older than stacy. In 6 years he will be 2 times her age. how old is each person now?
Aloiza [94]

Answer:

Ryan 40

Stacy 17

Step-by-step explanation:

x -----> Stacy

x + 23 -----> Ryan

x + 6  Stacy

x + 23 + 6   Ryan

x + 29 Ryan

 

x + 29 = 2(x + 6)

x + 29 = 2x + 12

x - 2x = 12  - 29

-x = - 17

x = 17 Stacy

x + 23

17 + 23

40 Ryan

4 0
3 years ago
Hey there is a link! It would mean a lot if you would give me the awnsers to these 3 questions! It’s grade 7 math! Thanks, all y
joja [24]

Answer:

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Step-by-step explanation:

5 0
3 years ago
An antelope can run a speed of 61 miles per hour. What is this speed in yards per second? Round to the nearest hundredth
DochEvi [55]

Answer:

= 29.82 yards/second

Step-by-step explanation:

The speed is given in the problem.  We just need to convert its units.  The multiplicative identity (that is, 1) may be used to change the units without changing the value.  (note:  do you know what the additive identity is?)

     61 miles per hour

    (61 miles) / (1 hour)

   (61 miles)/(1 hour)*1

   ((61 miles)/(1 hour))*((5280 feet)/(1 mile))

   ((61 miles)/(1 hour))*((5280 feet)/(1 mile))*((1 yard)/(3 feet))*((1 hour)/(60 minutes))*((1 minute)/(60 seconds))

      note:  miles, feet, hours, minutes cancel out; leaving yards per second

    (61/1)*(5280/1)*(1/3)*(1/60)*(1/60)   yards/second          (note: I write that way to paste into Excel)

8 0
3 years ago
In this parallelogram m angle bad =75 so m angle bcd
Allisa [31]
The complete question in the attached figure

we know that
m angle bad =75°
remember that on parallelogram 
(∠A + ∠<span>B) = 180°
[Since, sum of the interior angles on the same side of the transversal is 180°] 
therefore
</span>∠B=180°-∠A=180°-75°=105°
∠B=105°
<span>Similarly
∠B + ∠C = 180°
∠C + ∠D = 180°
and ∠D + ∠A = 180°</span>
<span>Thus, the sum of any two adjacent angles of a parallelogram is 180°.
</span>
m angle bcd=∠C=180-∠B=180°-105°=75°

the answer is m angle bcd=75°

8 0
3 years ago
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