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Eduardwww [97]
3 years ago
13

Help me please thanks

Mathematics
1 answer:
Brut [27]3 years ago
3 0
Forget about the negative sign. First you have to find a least common denominator. This would be 63. Since we had to multiply 9 by 7 to get 63 we have to multiply the numerator (4) by 7. This gives us a new fraction of 36/63. Since we ha e to multiply 21 by 3 to get 63 we have to multiply 19 by 3. This gives us 57. So now we have 36/63 and 57/63. Then we add the negative sign back in making 57/63 -57/63. Now we add them together. Because one has a negative sign and one is positive the number has to be closer to zero. So the answer is -21/63.
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A swimming pool is 20 feet wide and 40 feet long. If it is surrounded by a walkway of square tiles, each is 1 foot by 1 foot, ho
Lena [83]

Answer:

124 tiles

Step-by-step explanation:

2(20+40)

2(60)

120+4=124

5 0
2 years ago
The product of Jack's age and Florence's age is 266. Jack is 14 years<br> old. How old is Florence?
inysia [295]

Answer:

19

Step-by-step explanation:

you divide 266 by 14

5 0
3 years ago
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Stephen lives in Texas and makes $48,000 a year. If the median annual income in Texas is $51,205 and the median annual income in
timofeeve [1]

Stephen is likely to qualify since his annual income is less than the median income of Texas.


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3 years ago
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A rectangle has a width of 10 centimeters. The rectangles length is 4 times it’s width what is the perimeter of the rectangle
DiKsa [7]

Answer:

40

Step-by-step explanation:

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4 0
3 years ago
50 POINTS find the length of ab plz help me
Umnica [9.8K]

Answer:

about 9.4 units

Step-by-step explanation:

Distance formula:

√(x1 - x2)² + (y2 - y1)²

Coordinates:

A (4, 2)

B (9, 10)

Let's make 9 = x1

Let's make 4 = x2

Let's make 10 = y1

Let's make 2 = y2

Substitute into the distance formula:

√(x1 - x2)² + (y2 - y1)²

√(9 - 4)² + (2 - 10)²

Solve:

√(9 - 4)² + (2 - 10)²

√(5)² + (-8)²

√25 + 64

√89

≈ 9.4

Therefore, the length of AB is approximately 9.4 units.

7 0
3 years ago
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