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2 years ago

Can somebody help me ?

Mathematics

2 answers:

iris [78.8K]2 years ago

4 0

Answer:

Step-by-step explanation:

24/4 is 6

ycow [4]2 years ago

4 0

Answer:

6 US dollars

Step-by-step explanation:

I'm not mcsmart sorry

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In 2008, the total trade between the United States and Japan was $2.04 x 101^1. The total trade between the U.S. And Australia w

jolli1 [7]

Answer:

6.21 times more

Step-by-step explanation:

Assuming 2.04 x 10^11 was only a typo

you would need to first equal the powers of 10

so 20.4 x 10^10 and 3.28 x 10^10

now that they have the same powers

$\frac{20.4 * 10^{10}}{3.28 * 10^{10}} = \frac{20.4}{3.28} = 6.219512...$

if it's asking for how many times i would approximate it to 6.21 times more

3 0

3 years ago

A cleaning company charges x dollars per hour to clean floors and y dollars per hour to clean the rest of the house

Nina [5.8K]

Answer:

(15,18)

Step-by-step explanation:

write two equations with the information provided.

2x + 3y = 84

x + 4y = 87

use the property of substitution to answer.

x + 4y = 87, x = 87 - 4y

2(87 - 4y) + 3y = 84

174 - 8y + 3y = 84

174 - 84 = 8y - 3y

90 = 5y

90/5 = y

y = 18

Add the value of Y to an original equation. Solve for X

2x + 3(18) = 84

2x + 54 = 84

2x = 84 - 54

2x = 30

x = 30/2

x = 15

8 0

3 years ago

Emily works at a pretzel shop and uses 3/4 pounds of flour to make 9 pretzels. Each pretzel was made with the same amount of flo

SashulF [63]

1/12 because 3/4 divided by 9 is 1/12.

8 0

2 years ago

Find an equation of the line parallel to −5x+7y=3 that passes through the point (9,−4). If possible, write the equation in slope

saul85 [17]

From the original equation we have:

$-5x+7y=3$ $7y=5x+3$ $y=\frac{5}{7}x+\frac{3}{7}$

The slope of this line is 5/7 and for the new equation to be parallel to the original must have the same slope, and using the point-slope formula we have:

$y-(-4)=\frac{5}{7}(x-9)$ $y+4=\frac{5}{7}x-\frac{45}{7}$ $y=\frac{5}{7}x-\frac{45}{7}-4$ $y=\frac{5}{7}x-\frac{73}{7}$

7 0

11 months ago

The mean of the data<br>set is 15. What number<br>is missing?<br>18, 16, ____, 9, 12, 23

n200080 [17]

Answer:

Step-by-step explanation:

The Mean is the average of the numbers: a calculated "central" value of a set of numbers.

To calculate it:

• add up all the numbers,

• then divide by how many numbers there are.

$mean=\dfrac{a_1+a_2+a_3+...+a_n}{n}$

We have: 18, 16, x, 9, 12, 23 - six numbers (<em>n = 6</em>) and <em>mean = 15.</em>

Substitute:

$\dfrac{18+16+x+9+12+23}{6}=15\\\\\dfrac{78+x}{6}=15\qquad\text{multiply both sides by 6}\\\\6\!\!\!\!\diagup\cdot\dfrac{78+x}{6\!\!\!\!\diagup}=(6)(15)\\\\78+x=90\qquad\text{subtract 78 from both sides}\\\\78-78+x=90-78\\\\x=12$

6 0

2 years ago