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Svet_ta [14]
3 years ago
9

Five years ago, John’s age was half of the age of Mary. John is 4 years younger than Mary now. How old is John now

Mathematics
1 answer:
cupoosta [38]3 years ago
3 0
John is 9 yrs old now and Mary is 13
He was 4 yrs old 5 years ago and Mary was 8 yrs old so he was half her age
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Select the correct expression
umka2103 [35]
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3 0
3 years ago
10 < 0.25 ( x + 1 ) < 11
AURORKA [14]
10 <0.25 (x + 1) <11
 
We must solve two inequalities in this case.
 Inequality 1:
 
10 <0.25 (x + 1)
 10 / 0.25 <x + 1
 40 <x + 1
 40-1 <x
 39 <x
 Inequality 2:
 
0.25 (x + 1) <11
 (x + 1) <11 / 0.25
 (x + 1) <44
 x <44-1
 x <43
 The final result is:
 39 <x <43
 Answer:
 
39 <x <43
6 0
4 years ago
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lukranit [14]

Answer:

Step-by-step explanation:

Area of parallelogram = base * height

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base * height = 96

          base = 96/height

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6 0
3 years ago
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erastovalidia [21]

Answer:

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Step-by-step explanation:

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y = 35/7 - 5/7 x

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They give us the length of side of the square which is 3-7x.

To get an expression for the perimeter that is expressed as a product we have to multiply the expression 3-7x by four since every square has four sides. This will give us an expression of 4(3-7x). We than can use the distributive property to multiply everything inside the parenthesis by 4. This will give us an expression of 12-28x.

7 0
3 years ago
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