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mr_godi [17]
3 years ago
6

Math 7. Grade 7.

Mathematics
2 answers:
GREYUIT [131]3 years ago
8 0
15w=300
w=20

Brandy will have to work 20 weeks in order to make the $300 she needs to buy the camera


olya-2409 [2.1K]3 years ago
3 0
300=15x
x=20 weeks

The third equation

w=20 weeks
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Please I really need help with these
MrRissso [65]

Answer:

Idk lol

Step-by-step explanation:

8 0
4 years ago
Suppose Jessica opens a savings account with $5000 that compounds interest daily. The APR at the time Jessica opens the account
IrinaK [193]
Hi there

1+0.035=(1+r/360)^360
Solve for r
R=(((1.035)^(1÷360)−1)×360)×100
R=3.44%
6 0
3 years ago
−2x=x2−6 Rewrite the equation by completing the square.
V125BC [204]

Answer:

(x + 1)² = 7

Step-by-step explanation:

Given:

-2x = x² - 6

We'll start by rearranging it to solve for zero:

x² + 2x - 6 = 0

The first term is already a perfect square so that's fine.  Normally, if that term had a non-square coefficient, you would need to multiply all terms a value that would change that constant to a perfect square.

Because it's already square (1), we can simply move to the next step, separating the -6 into a value that can be doubled to give us the 2, the coefficient of the second term.  That value will of course be 1, giving us:

x² + 2x + 1 - 1 - 6 = 0

Now can group our perfect square on the left and our constants on the right:

x² + 2x + 1 - 7= 0

x² + 2x + 1 = 7

(x + 1)² = 7

To check our answer, we can solve for x:

x + 1 = ± √7

x = -1 ± √7

x ≈ 1.65, -3.65

Let's try one of those in the original equation:

-2x = x² - 6

-2(1.65) = 1.65² - 6

- 3.3 = 2.72 - 6

-3.3 = -3.28

Good.  Given our rounding that difference of 2/100 is acceptable, so the answer is correct.

6 0
3 years ago
Estaban is 6 years older than his brother Raoul. The sum of their ages is 38. How old are the brothers?
Over [174]

Answer:

raoul is 16 and estaban is 22

8 0
3 years ago
Subtract.<br> (6x + 5) - (x+3)
Roman55 [17]

(6x+5)-(x+3).

6x+5-x-3.

Add the like terms.

6x-x+5-3.

We get.

5x+2.

6 0
3 years ago
Read 2 more answers
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