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slava [35]
3 years ago
5

Help part a and b MATH PROBLEM

Mathematics
1 answer:
Oliga [24]3 years ago
8 0
You aren’t showing the necessary part of the question
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A system of equations is shown below. Which statement about the ordered pair (-7,-3) is true?
antoniya [11.8K]
Answer:

C) It is the only solution to the system.

Step-by-step explanation:

3x + 3y = -30

2x + y = -17

3(-7) + 3(-3) = -30

-21 + -9 = -30

-30 = -30

True

2x + y = -17

2(-7) + (-3) = -17

-14 + -3 = -17

-17 = -17

True

7 0
3 years ago
Read 2 more answers
Orly uses 2 cups of raisins for every 12 cups of trail mix she makes. How many cups of trail mix will she make if she uses 8 cup
alexgriva [62]

Answer:

48

Step-by-step explanation:

8 divided by 2 = 4

4 times 12 = 48

5 0
3 years ago
The water in a river moves south at 10 mi/hr. A motorboat travels due east at a speed of 20 mi/hr relative to the shore. Determi
weeeeeb [17]

Answer:22.36 mi/hr

Step-by-step explanation:

Given

water in a river moves south at (V_w)10 mi/hr

motorboat travels due to east at a speed of (V_b)20 mi/hr

Velocity of boat relative to the moving water V_{bw}

V_{bw}=V_b-V_w

V_{bw}=20i-(-10j)=20i+10j

Magnitude of V_{bw}=\sqrt{20^2+10^2}=\sqrt{500}

V_{bw}=10\sqrt{5} \approx 22.36 mi/hr

tan\theta =\frac{10}{20}

\theta =26.56^{\circ} with the x axis.

4 0
3 years ago
How in the world do you do this problem<br> (-1,0)<br> y+__= 4(x+2)
WARRIOR [948]
X = 0 y =-1 because you have to have to find numbers to replace x & y.
3 0
3 years ago
What is the value of the x in this equation 6x = 54​
seraphim [82]

Answer:

x = 9

Step-by-step explanation:

6x = 54​

Simple way of solving, all you have to do is isolate the variable "x." To do that, divide the number, 6, by both sides.

6x / 6 = 54 / 6

54 / 6 = 9

Hence,

x = 9

Hope this helps :)

6 0
3 years ago
Read 2 more answers
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