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vladimir1956 [14]
2 years ago
7

Evaluate. 2x-y when x=5 and y= -5

Mathematics
2 answers:
Elina [12.6K]2 years ago
7 0

2x - y \\ 2(5) - ( - 5) \\ 10 + 5 \\ 15

PLEASE GIVE BRAINLIEST

vfiekz [6]2 years ago
3 0
I believe It is 15. Because you have to substitute the x and y values into the equation. 2(5) - (-5). 10-(-5). 10+5=15
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In the graph below, Point A represents Owen's house, Point B represents David's house and Point C represents the school. Who liv
ycow [4]

Answer:

• David

,

• 4 miles

Explanation:

In the graph:

The given locations are:

• Owen's House, A(11,3)

,

• David's House, B(15,13)

,

• School, C(3,18)

We determine both Owen's and David's distance from the school using the distance formula.

Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Owen's distance from school (AC)

\begin{gathered} AC=\sqrt[]{(3-11)^2+(18-3)^2} \\ =\sqrt[]{(-8)^2+(15)^2} \\ =\sqrt[]{64+225} \\ =\sqrt[]{289} \\ AC=17\text{ miles} \end{gathered}

David's distance from school (BC)

\begin{gathered} BC=\sqrt[]{(3-15)^2+(18-13)^2} \\ =\sqrt[]{(-12)^2+(5)^2} \\ =\sqrt[]{144+25} \\ =\sqrt[]{169} \\ BC=13\text{ miles} \end{gathered}

We see from the calculations that David lives closer to the school, and by 4 miles.

The graph below is attached for further understanding:

5 0
11 months ago
The sum of 5 times a number and 6 is twice that number.
nadya68 [22]

Answer:

the number is three

Step-by-step explanation:

6÷2 is equal to 3, so you do 3x5 which is equal to 15.

8 0
2 years ago
Find the slope and y-intercept of a line through the points (-3, -4) and (0, -1).
KonstantinChe [14]
I have the same question 37377 not the
8 0
2 years ago
Read 2 more answers
Convert the rate 1000 fluid ounces per 2 hours to cups per minute
Ronch [10]
There are 8 ounces in a cup, so there are 125 cups in 1000 ounces.
1000 / 8 = 125
there are 60 minutes in an hour and 120 minutes in 2 hours
so 1000 ounces / 2 hours is
125 cups / 120 minutes
125 / 120 = 1.04 cups per minute

Check your work
multiply times 60 to get cups per hour
1.04 * 60 = 62.4 cups per hour
multiply times 8 to get ounces per hour
62.4 * 8 = 499.2
multiply times 2 to get ounces per 2 hours
499.2 * 2 = 998.4
the number is not quite 1000 due to rounding the 125 / 120 as it is closer to 1.041666666666667
7 0
3 years ago
Read 2 more answers
Please Help ! Thank you
mel-nik [20]
Maybe rate of change? Im not sure.

7 0
3 years ago
Read 2 more answers
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