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Tpy6a [65]
3 years ago
5

-3p+1/8=1/4 what value make p true

Mathematics
1 answer:
kobusy [5.1K]3 years ago
4 0

Answer:

p=-1/3

Step-by-step explanation:

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A carpenter purchased 50 ft of redwood and 80 ft of pine for a total cost of $285. A second purchase, at the same prices, includ
Marizza181 [45]

Hey there!!

Let us take the price of the redwood as ' x ' and pine as ' y '

Then , we take it into an equation. We get,

50x + 80y = 285 -------------- ( 1 )

80x + 50y = 339 -------------- ( 2 )

Now, multiply the first equation with 8 and the second equation with 5

400x + 640y = 2280

400x + 250y = 1695

Now subtract the second equation from the first

390y = 585

y = 585 / 390

y = $1.5

Now substitute this into any equation

50x + ( 80 ) ( 1.5 ) = 285

50x + 120 = 285

50x = 165

x = 165 / 50

x = $3.3

Redwood = $3.3

Pine = $1.5

Hope helps!



6 0
3 years ago
A taxi cab charges an initial fee of $3.50. Each 1/8 mile costs $0.23. Write an equation for the total cost, c, depending on the
Ymorist [56]

Answer:

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Step-by-step explanation:

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Each 1/8 mile costs $0.23

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1/8 = 0.125

3.50+0.125m(0.23) = C

5 0
3 years ago
Mr. Darcy could knit 4 ugly sweaters in 100 minutes. How long will it take him to knit 6 ugly holiday sweaters
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If you divide 100 by 4 which equals 25 that would be 25mins for one ugly sweater
If you times by 2 that equals 50
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3 0
3 years ago
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What is an algebraic expression
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<span>Math Term Definition. Algebraic Expression. An algebraic expression is a mathematical phrase that can contain ordinary numbers, variables (like x or y) and operators (like add,subtract,multiply, and divide). Here are some algebraic expressions: a + 1.</span>
8 0
3 years ago
Solve the equation for u.<br> Uw + uq=r
soldi70 [24.7K]

Answer:  u= \frac{r}{w+q}

Step-by-step explanation:

uw + uq = r To solve for u  factor  the left side to eliminate the other variables.

u ( w + q) = r   Now divide both sides by w+q

u = \frac{r}{w+q}

4 0
3 years ago
Read 2 more answers
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