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Zepler [3.9K]
2 years ago
7

Tyler is 8 years old.His sister Olivia is 4 years less than twice his age.Write a numerical expression to fine Olivia's age

Mathematics
2 answers:
Aleks [24]2 years ago
8 0

Answer:

O = 2(8) - 4

Step-by-step explanation:

Age of Tyler is = 8 years

Age of Olivia is 4 years less than twice his age.

Let the age of Olivia be 'O'

Twice of Tyler's age = 2(8)

4 years less than twice his age = 2(8) - 4

Now the expression will be

O = 2(8) - 4

O = 16 - 4

O = 12 years

MaRussiya [10]2 years ago
7 0
O = 8*2 - 4 = 12. Olivia is 12 years old.
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Which table represents the equation y = -2x + 17?
Alexeev081 [22]
<h3>Answer: Choice A</h3>

Explanation:

Each table has x = 10 in it. Plug this value into the given equation.

y = -2x+17

y = -2*10+17

y = -20+17

y = -3

The input x = 10 leads to the output y = -3. Table A shows this in the middle-most row. So that's why choice A is the answer. The other tables have x = 10 lead to y values that aren't -3 (eg: choice D has x = 10 lead to y = 12), so we can rule them out.

7 0
2 years ago
Solve for y in -8×+4y=24
s344n2d4d5 [400]

Factor out the common term 4

-4(2x - y) = 24

Divide both sides by -4

2x-y= - 24/4

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2x -y = -6

Subtract 2x from both sides

-y = -6 - 2x

Multiply both sides by -1

y = 6 + 2x

5 0
3 years ago
The area of a rectangular field is 2275 m2. The field is enclosed by 200 m of fence. What are the dimensions of the field?
AURORKA [14]
So it is enclosed by 200 m of  fence
perimiter=200 m
it is a rectangle to
p=legnth+legnth+width+width or
p=l+l+w+w or
p=2l+2w or
p=2(l+w)
so
p=200
200=2(l+w)
divide both sides by 2
100=l+w
area=l times w
area=2275
lw=2275
l+w=100
combine and solve
l+w=100
subtract w
l=100-w
subisutute 100-w for l in other eqution
(100-w)(w)=2275
distribute
-w^2+100w=2275
add (w^2-100w) to both sides
0=w^2-100w+2275
factor
find what 2 numbers add up to -100 and multiply to get 2275
guess (or factor 2275 and find factors that add up to -100)
figure out that they are -65 and -35
0=(w-65)(w-35)
set each to zero
0=w-65
0=w-35

solve for w
w=65 or 35
65>35 so
65 m=legnth
35 m=width
 
4 0
3 years ago
A light bulb consumes 3120 watt-hours in 3 days and 6 hours. How many watt-hours does it consume per day?
matrenka [14]

2850*24/(4*24+18)

The light bulb consumes 600 watt-hours per day.

6 0
3 years ago
Review the diagram below.
morpeh [17]

Answer:

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Step-by-step explanation:

you can said bca and its gonna give you that

7 0
3 years ago
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