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3 years ago

Sierra drives for h hours at a rate of 2x miles per hour. Which expression shows the distance that she drives after h hours

Mathematics

1 answer:

Eva8 [605]3 years ago

8 0

Answer:

Distance traveled by Sierra in h hours at a rate of 2x miles per hour = 2xh

Explanation:

Distance traveled by a body = Velocity of the body * Time taken by the body

Here velocity of Sierra = 2x miles per hour

Time taken by Sierra = h hours.

Distance traveled by Sierra = 2x * h = 2xh

So distance traveled by Sierra in h hours at a rate of 2x miles per hour = 2xh

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Which graph represents the solution to this inequality? -1/4(12x+8)≤ -2x+11

Bond [772]

Answer:

Step-by-step explanation:

-3x-2 $\leq$ -2x+11

+3x +3x

-2 $\leq$ x+11

-11 -11

-13 $\leq$ x

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3 years ago

What is equal to -5/4

sleet_krkn [62]

− 10/8

− 15/12

− 20/16

− 25/20

− 40/32

These are all equal, the list could go on but here are many

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3 years ago

Matt is showing his work in simplifying (6.2 − 1.6) − 4.4 + 7.8. Identify any error in his work or reasoning.

shusha [124]

Start with the parentheses first

4.6 -4.4+7.8 then calculate from left to right
= 0.2+7.8 = 8

6 0

3 years ago

What number must you add to the polynomial below to complete the square? x^2+17x

Juliette [100K]

The number added to the polynomial by completing the square is $\frac{289}{4}$

Explanation:

Given that the polynomial is $x^{2} +17x$

We need to determine the number that is added to the polynomial to complete the square.

The last term of the polynomial can be determined by dividing the term 17 by 2 and then squaring the term.

Thus, we have,

Last term = $\frac{17}{2}$

Now, squaring the term, we have,

Last term = $(\frac{17}{2})^2=\frac{289}{4}$

Thus, the number added to the polynomial by completing the square is $\frac{289}{4}$

7 0

3 years ago

Your computer-supply store sells two types of inkjet printers. The first, type A, costs $237 and you make a $22 profit on each o

Vera_Pavlovna [14]

The minimum cost option can be obtained simply by multiplying the number of ordered printers by the cost of one printer and adding the costs of both types of printers. Considering the options:
69 x 237 + 51 x 122 = 22,575
40 x 237 + 80 x 122 = 19,240
51 x 237 + 69 x 122 = 20,505
80 x 237 + 40 x 122 = 23,840
Therefore, the lowest cost option is to buy 40 of printer A and 80 of printer B

The equation, x + 2y ≤ 1600 is satisfied only by options:
x = 400; y = 600
x = 1600
Substituting these into the profit equation:
14(400) + 22(600) - 900 = 17,900
14(1600) + 22(0) - 900 = 21,500
Therefore, the option (1,600 , 0) will produce greatest profit.

7 0

3 years ago