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butalik [34]
3 years ago
10

Last month you spent $30 on clothing. This month you spent 150% of what you spent last month. How much did you spend this month?

Mathematics
2 answers:
VLD [36.1K]3 years ago
5 0

Answer:

$45

Step-by-step explanation:

30/2=15

30+15=45

Ann [662]3 years ago
3 0

Answer:

Last moth I spent $45 on clothing.

Step-by-step explanation:

To solve this problem, we just need to find 150% of $30.

30 x 1.50 = 45

Therefore, last moth I spent $45 on clothing.

Hope this helps! :D

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Margarita [4]

Answer:

0.002%

Step-by-step explanation:

10/5,000 = 0.002

Hope this helps!

4 0
3 years ago
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Based on the scatterplot and the value of the correlation coefficient, it would make sense to test the significance of this obse
Aleks [24]

Answer:

d. H0: melanoma mortality rate is not linearly related to latitude

   Ha: melanoma mortality rate is linearly related to latitude

Step-by-step explanation:

The linear regression equation is

y=α+βx where α=intercept and β=slope.

β=slope demonstrates the change in dependent variable due to unit change in independent variable.

If the slope is zero then we can say that Y and X are not linearly related.

Thus, the hypothesis for testing significance of linear relationship two variables can be written as

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Alternative hypothesis : The two variables are linearly related i.e. β≠0.

Thus, in the given scenario the hypothesis are

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Ha: melanoma mortality rate is linearly related to latitude.

5 0
3 years ago
What 2 numbers multiply to be -14 and add to be -3
Svetach [21]
Xy = -14
x + y = -3

xy = -14
\frac{xy}{x} = \frac{-14}{x}
y = \frac{-14}{x}

x + y = -3
x + \frac{-14}{x} = -3
\frac{x^{2}}{x} + \frac{-14}{x} = -3
\frac{x^{2} - 14}{x} = -3
x^{2} - 14 = -3x
x^{2} + 3x - 14 = 0
x = \frac{-(3) \± \sqrt{(3)^{2} - 4(1)(-14)}}{2(1)}
x = \frac{-3 \± \sqrt{9 + 56}}{2}
x = \frac{-3 \± \sqrt{65}}{2}
x = \frac{-3 \± 8.06}{2}
x = -1.5 \± 4.03
x = -1.5 + 4.03    or    x = -1.5 - 4.03
x = 2.53    or    x = -5.53

        x + y = -3
   2.53 + y = -3
 - 2.53         - 2.53
              y = -5.53
        (x, y) = (2.53, -5.53)
         
         x + y = -3
  -5.53 + y = -3
+ 5.53         + 5.53
              y = 2.53
        (x, y) = (-5.53, 2.53)

The two numbers that multiply to -14 and add up to -3 are -5.53 and 2.53.
8 0
3 years ago
The formula for finding the area of a circle is A=pi r 2.Solve the formula for r
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Answer:

See Explanation

Step-by-step explanation:

A = \pi {r}^{2}  \\  \\  \frac{A}{\pi}  =  {r}^{2}  \\  \\ \huge \red{ \boxed{ r =  \sqrt{\frac{A}{\pi}  } }}

3 0
3 years ago
Gina bought 2.5 pounds of peaches that cost $1.38 per pound at the grocery store. Amy went to the local farmer’s market and purc
patriot [66]
Gina spent $3.45 in total. amy spent $3.43 in total. so gina spent more money and she spent 2 cents more
4 0
3 years ago
Read 2 more answers
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