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Tpy6a [65]
3 years ago
9

Which statement is true regarding the graphed functions?

Mathematics
1 answer:
andreev551 [17]3 years ago
7 0

There is no graph, so it is impossible to answer this question. I apologise.

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Coral spent half of her weekly allowance playing mini-golf. To earn more money her parents let her wash the car for $4. What is
Juliette [100K]
X=weekly allowance
x/2=money saved  (=  money spent).
We can suggest this equation:

x/2+4=12

lowest common multiple=2
x+8=24
x=24-8
x=16

Answer: her weekly allowance is $16.
7 0
3 years ago
The ages of three children in a family can be expressed as consecutive integers. The square of the age of the youngest child is
tensa zangetsu [6.8K]

Answer: 10, 11, & 12

<u>Step-by-step explanation:</u>

Let x represent the age of the youngest child.  

Their ages are consecutive so,

Youngest: x

Middle: x + 1

Oldest: x + 2

The age of the Youngest squared (x²) equals 8 times the Oldest [8(x + 2)] plus 4.

x² = 8(x + 2) + 4

x² = 8x + 16 + 4

x² = 8x + 20

x² - 8x - 20 = 0

(x - 10)(x + 2) = 0

x - 10 = 0     or      x + 2 = 0

  x = 10       or          x = -2

Since age cannot be negative, x = -2 is not valid

So, the Youngest (x) is 10

the Middle (x + 1) is 11

and the Oldest (x + 2) is 12

4 0
3 years ago
Solve the following system of equations using substitution.
dolphi86 [110]
It's A. If U=16, 6+10=16
and if you plug in the numbers for the second equation it's 36=2(10)+16
6 0
3 years ago
The equation y = 1.9 x can be used to determine the total weight in pounds, y, of the number of paperback books in the first pri
dedylja [7]

Answer:

280

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Solve 5r2 – 12 = 68. {±4} {±5} {±3} {±6}
sashaice [31]

Hey there!

Assuming you meant

5r^2 - 12 = 68

If so, follow these steps so it can be a little bit easier to solve

Firstly, we have to add by 12 on each of your sides

5r^2 -12 +12 \\ \\ 68 + 12

5r^2 = 5r^2 \\ \\ 68 + 12 = 80

We get: 5r^2 =80

Now, we have divide by 5 on each of your sides

\frac{5r^2}{5} = \frac{80}{5}

\frac{80}{5}  = 16

We get: r^2 = 16

r = ± \sqrt{16}

Therefore , your answer is:r = ±4

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

3 0
3 years ago
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