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3 years ago

What is 6 1/2 times -3

Mathematics

2 answers:

Jlenok [28]3 years ago

8 0

Answer:

-19.5

Step-by-step explanation:

Easy to put on a calculator

6(1/2) X (-3)

6 X -3=(-18)

(1/2) X (-3)= (-1.5)

add the products (-18)+(-1.5)= -19.5

AleksAgata [21]3 years ago

5 0

Answer:

-14.5

Step-by-step explanation:

6.5 * -3 = -14.5

- * + = -

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A ride-share company has a fee that includes a fixed cost and a cost that depends on both the time spent travelling, in minutes,

zlopas [31]

Answer:

the cost of Roy's ride is $23.05

Step-by-step explanation:

According to the Question,

Let, Cost of per minute charge is 'x' & Cost Of Per Kilometre charge is y .

Given, A ride-share company has a fee of the fixed cost of a ride is $2.55 .
And, The Total cost of the Ride depends on both the time spent on travelling(in minutes), and the distance travelled(in kilometres) .

⇒ Judy's ride costs $16.75 . but the actual cost after deducting the fixed charge is 16.75-2.55 = $14.20, took 8 minutes & The distance travelled was 10 km. Thus, the equation for the journey is 8x+10y=14.20 ⇒ Equ. 1

⇒ Pat's ride costs $30.35 . but the actual cost after deducting the fixed charge is 30.35-2.55 = $27.80, took 20 minutes & The distance travelled was 18 km. Thus, the equation for the journey is 20x+18y=27.80 ⇒ Equ. 2

Now, on Solving Equation 1 & 2, We get

x=0.4(Cost of per minute charge) & y=1.1(Cost Of Per Kilometre charge)

Now, Roy's ride took 10 minutes & The distance travelled was 15 km . Thus, the cost of Roy's Ride is 10x+15y ⇔ 10×0.4 + 15×1.1 ⇔ $20.5

Hence, the total cost of Roy's ride is 20.5 + 2.55(fixed cost) = $23.05

8 0

3 years ago

∠C and ∠D are vertical angles with m∠C=−3x+58 and m∠D=x−2 . What is m∠D ?

Y_Kistochka [10]

So we have to find out what x is before we can solve for either angle

because vertical angles are always congruent we can set the two equations to equal each other and solve for x

-3x + 58 = x - 2

we need to get all the x terms on one side before we can solve for x so let's add 2 to both sides to get x alone on the right side

now we have

-3x + 60 = x

now we add 3x to both sides

60 = 4x

we isolated the terms and now we can solve for x by dividing both sides by 4

15 = x

so if x = 15 we need to plug that in to both equations to check our work

C = -3(15) + 58

C = 13

D = 15 - 2

D = 13

x does in fact equal 15 because both equations got the same answer and we found out that angle D = 13

8 0

3 years ago

Use inverse operations to solve equation 15=x/6-1

beks73 [17]

Answer:

x=90.

Step by step explanation:

To solve the expression $15=\frac{x}{6}-1$ , and obtaining a value for x we can do the following:

Add 1 both sides of the equation. This will result in $15+1=\frac{x}{6}-1+1$ ⇒ $16=\frac{x}{6}$ .
Multiply both sides by 6, which yields $15\times6=\frac{x}{6}\times6$ . This results in $90=x$ .