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alekssr [168]
3 years ago
11

A sprinkler system uses 800 gallons of water in 5 days. The system uses ___ gallons of water in 1 day

Mathematics
1 answer:
slamgirl [31]3 years ago
5 0

Answer:

160

Step-by-step explanation:

800 gallons in 5 days. The days is the denominator and the gallons are the numerator, whatever you do the the bottom you do to the top, so you divide the denominator by 5 and the numerator by 5 and you get 160 gallons per day. If you want to know how your answer is right, multiply 160 by 5

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Find the slope of the line passing through the points (-4,7) and (2,-8)
mixas84 [53]

Answer:

m=\frac{-5}{2}

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

Point (-4, 7)

Point (2, -8)

<u>Step 2: Find slope </u><em><u>m</u></em>

  1. Substitute:                    m=\frac{-8-7}{2+4}
  2. Subtract/Add:               m=\frac{-15}{6}
  3. Simplify:                        m=\frac{-5}{2}
6 0
3 years ago
The probability of rain for the day of the race is 62%.
Brilliant_brown [7]

Answer:

Step-by-step explanation:

8 0
3 years ago
Anyone knows this please help me
USPshnik [31]

Answer:

(0, 2 ) and (- \frac{4}{3}, \frac{2}{9} )

Step-by-step explanation:

Given the 2 equations

2x² + 4x - y = - 2 → (1)

x² + y = 2 → (2)

subtract x² from both sides in (2)

y = 2 - x² → (3)

Substitute y = 2 - x² into (1)

2x² + 4x - (2 - x²) = - 2

2x² + 4x - 2 + x² = - 2

3x² + 4x - 2 = - 2 ( add 2 to both sides )

3x² + 4x = 0 ← in standard form

x(3x + 4) = 0 ← in factored form

Equate each factor to zero and solve for x

x = 0

3x + 4 = 0 ⇒ 3x = - 4 ⇒ x = - \frac{4}{3}

Substitute these values into (3) for corresponding values of y

x = 0 : y = 2 - 0² = 2 - 0 = 2 ⇒ (0, 2)

x = - \frac{4}{3} : y = 2 - (- \frac{4}{3} )² = 2 - \frac{16}{9} = \frac{2}{9} ⇒ ( - \frac{4}{3}, \frac{2}{9} )

3 0
3 years ago
The temperature is -7. Since midnight the temperature tripled and then rose 5° what was the temperature at midnight?
expeople1 [14]

The answer would be -2

7 0
3 years ago
Read 2 more answers
How much candy at $1.20 a pound should be mixed with candy worth 95¢ a pound in order to obtain a mixture of 50 pounds of candy
Nesterboy [21]

10 pounds of candy costing $1.20 per pounds must be mixed with 40 pounds of candy costing $ 0.95 per pound to obtain a 50 pounds of candy costing $ 1 per pound

<em><u>Solution:</u></em>

Let "x" be the pounds of candy at $ 1.20 per pound

Then (50 - x) is the pounds of candy at $ 0.95 per pound ( since 95 cents is equal to 0.95 pound)

Therefore, x pounds of candy costing $1.20 per pounds must be mixed with (50 - x)  pounds of candy costing $ 0.95 per pound to obtain a 50 pounds of candy costing $ 1 per pound

Then the equation becomes,

1.20x + (50 - x)0.95 = 50 x 1

On expanding we get,

1.20x + 47.5 - 0.95x = 50

0.25x = 50 - 47.5

0.25x = 2.5

x = 10

Then (50 - x) = 50 - 10 = 40

So we need 10 pounds of candy worth $ 1.20 per pound and 40 pounds of candy worth $ 0.95 to obtain 50 pounds of candy worth a dollar a pound

5 0
3 years ago
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