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2 years ago

This is for my final grade before spring break please help me asap noww

Mathematics

1 answer:

andreev551 [17]2 years ago

6 0

Answer:

Bushes are $9.

Bonsai trees are $32.

Step-by-step explanation:

Bushes are b and bonsai trees are t.

15b + 8t = $391

9b + 5t = $241

15b + 8t = $391 × 3 and 9b + 5t = $241 × 5

= 45b + 24t = $1173 and 45b + 25t = $1205

(45b + 24t = $1173) - (45b + 25t = $1205)

t = 1205 - 1173

t = $32

Apply to 15b + 8t = $391.

15b + 32 × 8 = $391

15b = $391 = 32 × 8

15b = $391 - 256

15b = $135

x = ($135 ÷ 15) = $9

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A man drove 11 mi directly east from his home, made a left turn at an intersection, and then traveled 9 mi north to his place of

ludmilkaskok [199]

Answer: 14 miles

Step-by-step explanation:

In the attached figure we can see the two segments the man drove, where the $d$ is the distance of a road that goes from the man's home directly to his work.

It should be noted that $d$ is also the hypotenuse of the righ triangle formed. Hence, we can use the Pithagorean theorem to find this distance:

$d=\sqrt{(11 mi)^{2} + (9 mi)^{2}}$

Then:

$d=14.21 mi \approx 14 mi$

3 0

3 years ago

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Darya [45]

i really really really like birds

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3 years ago

7x-10x+18+2x=-5.0000

inysia [295]

Simplifying

7x + -10x + 18 + 2x = -5

Reorder the terms:

18 + 7x + -10x + 2x = -5

Combine like terms: 7x + -10x = -3x

18 + -3x + 2x = -5

Combine like terms: -3x + 2x = -1x

18 + -1x = -5

Solving

18 + -1x = -5

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-18' to each side of the equation.

18 + -18 + -1x = -5 + -18

Combine like terms: 18 + -18 = 0

0 + -1x = -5 + -18

-1x = -5 + -18

Combine like terms: -5 + -18 = -23

-1x = -23

Divide each side by '-1'.

x = 23

Simplifying

x = 23

6 0

3 years ago

Which function below is the inverse of f(x) = x2 − 16?

slega [8]

$f(x) = x^{2} - 16$
$y = x^{2} - 16$
$x = y^{2} - 16$
$x + 16 = y^{2}$
$\±\sqrt{x + 16} = \sqrt{y^{2}}$
$\±\sqrt{x + 16} = y$
$\±\sqrt{x + 16} = f^{-1}(x)$

4 0

3 years ago

Which expression represents the phrase the sum of twice a number and 7

bixtya [17]

Answer:

2n+7

Step-by-step explanation:

3 0

3 years ago