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3 years ago

If (a,b) is an ordered pair for x-y=5, is (b,a) also a solution?

1 answer:

5 0

The answer is no. Because solution (a,b) means x=a, y=b.and we have a-b=5. And (b,a) would mean x=b and y=a but then x-y=b-a=-(a-b)=-5≠5. So the pair (b,a) is not a solution.

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At Brick House Masonry Supply, it is time for annual pay raises for the fork lift operators.

Dvinal [7]

Answer:

divided it then add it, i think

Step-by-step explanation:

23.04/3.125=7.3728

22.75/0.04=568.75

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6 0

3 years ago

Solve the system by substitution: -4.5x-2y=-12.15 3.25x-y=-0.75

valina [46]

Answer:

The answer is x=0.97 while y=3.90

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3 years ago

10.

timama [110]

Answer:

Step-by-step explanation:

3 0

3 years ago

I'll give you more points but you have to answer all the parts to the question. I need this plsssss ty lol. Show all work too pl

alexira [117]

Answer:

a) 34mi

b) 10mi

c) 44mi

d) by Calculating the amount of miles it would take John to go to school plus the amount of miles it would take Sara to go to school. Then add the sum of the amount of miles it took for both to go to school.

Step-by-step explanation:

a) explanation:

$a^{2} +b^2=c^2$

$16^2+30^2=c^2$

$256 + 900 = c^2$

$c^2=1156$

$\sqrt{1156}=34mi$

b) explanation:

$a^{2} +b^2=c^2$

$6^2+8^2=c^2$

$36+64=c^2$

$c^2=100$

$\sqrt{100} =10mi$

c) explanation: we already have all the data from John's house to Sara's House.

John's House to Sara's House = John's House to School + Sara's House to School.

Sara's House to School (Question #1) = 34mi

John's House to School (Question #2) = 10mi

34(mi) + 10(mi) = 44(mi)

d) explanation: explanation is on the answer

7 0

3 years ago

160 is 120% of what number?

LuckyWell [14K]

120 % = 160

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Find 1 % :
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120% = 160
1% = 160 ÷ 120
1% = 4/3

---------------------------------------------------------------------------
Find 100% :
---------------------------------------------------------------------------
1% = 4/3
100% = 4/3 x 100
100% = 133 1/3

---------------------------------------------------------------------------
Answer: 160 is 120% of 133 1/3
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8 0

3 years ago

Read 2 more answers