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aleksley [76]
3 years ago
13

If the denominator of 5/7 is increased by a number and the numerator is doubled, the result is 1. Find the number.

Mathematics
1 answer:
iren2701 [21]3 years ago
6 0

Answer:

3

Step-by-step explanation:

let n be the number, then

\frac{10}{7+n} = 1 ← multiply both sides by 7 + n

10 = 7 + n ( subtract 7 from both sides )

3 = n

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Answer: 24

Step-by-step explanation:

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What is a matrix for a system of equations that does not have a unique solution?
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This is in my opinion. Im not sure if it is correct or not but Good luck!


4 0
3 years ago
Sal wants to know if he has enough money to buy 4 gallons of gas. If he has $15, and each gallon of gas costs $3.29, which is a
velikii [3]

Answer:

Remember that when you are making stimates, you are going to roiund to the nearest dollar. Since $3.29 is closer to 3 dollars than four dollars, Sam should use the 3 dollars figure to estimate if he can afford 4 gallons of gas.

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Step-by-step explanation:

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3 years ago
Write each decimal as a fraction or mixed number in simplest form.<br> 1 3/8
Mnenie [13.5K]

3/2

<em>Step One:</em> 1 3/8, transform the number into a improper fraction:

  1. To have a mixed number in to a improper fraction, you need to use            addition and multiplication.  For 1 3/8, We first multiply the denominator (8, also know to be the bottom number of the fraction) to the whole number (1).  8x1= 8
  2. NOTE: The original denominator (8) will be use for are improper, again playing as the denominator, we only multiply the denominator for the numerator (which is the top number of a fraction).
  3. After multiplying, we'll add are product with the numerator (3) for the process. 8+3= 12
  4. Now we have both numerator and denominator for 1 3/8, we can create the improper fraction. 12 as the numerator and 8 as the denominator. 12/8
  5. We still need to simplify the number. To that, we need the biggest whole number, or rather I call it the lowest number, that can be divide both in 12 and 8.
  6. 4 can be divide by both number so: 12/4= 3 and 8/4=2
  7. Now 3 is are simplify numerator and 2 is are simplify denominator.

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A line with a slope of 5 passes through the points (3,8).which of the following is the value of the y-intercept
alexira [117]

Answer:

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Step-by-step explanation:

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