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Lelu [443]
3 years ago
13

78.50=1.50x+.50y when x+y=87​

Mathematics
1 answer:
Arlecino [84]3 years ago
6 0

Answer:

Solution is (35,52)

Step-by-step explanation:

Step 1: Rewrite x+y=87

y= -x+87

Step 2: Substitute y=-x+87 into original equation and solve for x.

x=35

Step 3: Substitute value of x (35) and solve for y.

y=52

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I hope this helps!
3 0
3 years ago
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24. The cost to board a dog at a kennel varies
natita [175]

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Step-by-step explanation:

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96=4k

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8 0
3 years ago
Samantha just opened a new restaurant. She earned $550 on the first day and $750 on the third day that she was open for business
mr Goodwill [35]

Answer:

Step-by-step explanation:

If Samantha's earnings continue to increase at the same rate, this means that her earning is increasing arithmetically.

If she earned $550 in the first day, we can say the first term is $550

If she earned $750 on the third day, we can say the third term is $750

For us to know by how much her money is increasing, we need to find the common difference d formed by the sequence

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T1 = 550

T2 = x

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Common difference d = T2-T1 = T3-T2

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Let's calculate the second term first i.e x

Since x - 550 = 750 - x = d

x - 550 = 750 - x

Collect like terms

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x = 1300/2

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d = T2-T1

d = x - T1

d = 650-550

d = 100

Hence her money keeps increasing by $100 each day

8 0
3 years ago
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faltersainse [42]

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7 0
4 years ago
Simplify the expression please
Reika [66]
\bf -2(3+2i)+2(4-5i)\implies 
\\\\\\
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4 years ago
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